Crossfoot

Midas · Midas customFeed family

mevBTC

mevBTC/BTC

0xffd462e0602Dd9FF3F038fd4e77a533f8c474b65

verdict OBSERVED_DEVIATIONposting path ADMIN_GUARD_BYPASSEDliveness STALENAV INPUT_GAPconsumer action REVIEW

5 unchecked post(s) over the bound in force, posting path ADMIN_GUARD_BYPASSED, liveness STALE, posting path replayed

Family
midas-customfeed
Chain
Ethereum mainnet (1)
Guard
deviation bound
bound scale
0
kind
max_deviation
max answer
maxAnswer()
max deviation
maxAnswerDeviation()
min answer
minAnswer()
moves above threshold
0
silences
0
at bound posts
0
clamped posts
0
override flags
0
reference moves
0
unguarded reference moves
0
Mechanism
CustomAggregatorV3CompatibleFeed: a Chainlink-shaped feed with a feed admin role. setRoundData checks only minAnswer <= value <= maxAnswer; setRoundDataSafe additionally requires deviation(last, value) <= maxAnswerDeviation (percent at 10^decimals scale) and, in the 2026-06 implementations, more than one hour since the last post.

Latest decision

REVIEW

ADMIN_GUARD_BYPASSEDSTALEPOLICY_DEVIATIONconsumer policyPOLICY_SILENCEconsumer policy

ADMIN_GUARD_BYPASSED: round 52 posted through setRoundData (0xa4381d1f) at block 24683249, deviation 19.31153493 percent against bound 0.4 percent in force; tx 0xf82b7c2e9e0aa9b8e935f033294c00a74748d7c739f0a0302d172c3a11668835; Crossfoot posting_path ADMIN_GUARD_BYPASSED, bundle 9c34963ec326f7c6fb47d2ab5d0d77b5640c044a0033261b9610bd32454665ab

  • policy default: the threshold is the consumer's rule, not the feed's; the feed's own on-chain checks are reported in posting_path and the findings

run 20260910T205941Z · deployment QmeTCucCXDhT27pMMExg2EtDx1t7SA3Abgcw2p4BuZgmdQ · indexed block 25,949,534 · record 18c1fe8dc9c8517f28df8f6189aad66cc55f8ee400cce98580aadb30c869ab0c · consumer policy default · policy-default.json · sha256 84806934fd5b…2c1ab4 · 8 gates

Evidence bundle

root 9c34963ec326f7c6fb47d2ab5d0d77b5640c044a0033261b9610bd32454665ab

Download midas-run-25949464-20260910T205406Z.tar.gz 1657 KB, sha256 2b17b5ec3c4bfb649b349945c7016ad4dc873a41e417bbb4ebc7e580e13c3835

crossfoot verify midas-run-25949464-20260910T205406Z.tar.gz
# exit code 0: every file re-hashes to the root above and the verdict replays offline

Install the binary from the Crossfoot README; verify needs no key and no network.

Timeline

mevBTC posting-path timeline0.90001.00000%10%20%2025-07-072025-09-062025-11-062026-01-062026-03-082026-05-082026-07-07answerdeviation in force, percent · bound in force (yellow)round 1, raw, 1.00000000, 2025-07-07, UNGUARDED_POSTround 2, safe, 1.00161500, 2025-08-29, no findinground 3, safe, 1.00371691, 2025-09-03, no findinground 4, safe, 1.00447438, 2025-09-26, no findinground 5, safe, 1.00502063, 2025-09-30, no findinground 6, safe, 1.00552971, 2025-10-02, no findinground 7, safe, 1.00621649, 2025-10-07, no findinground 8, safe, 1.00826968, 2025-10-15, no findinground 9, safe, 1.00882000, 2025-10-17, no findinground 10, safe, 1.00989656, 2025-10-21, no findinground 11, safe, 1.01063727, 2025-10-24, no findinground 12, safe, 1.01130970, 2025-10-28, no findinground 13, safe, 1.01190951, 2025-10-31, no findinground 14, safe, 1.01200387, 2025-11-05, no findinground 15, safe, 1.01208517, 2025-11-07, no findinground 16, safe, 1.01236027, 2025-11-11, no findinground 17, safe, 1.01248977, 2025-11-14, no findinground 18, safe, 1.01283476, 2025-11-18, no findinground 19, safe, 1.01294484, 2025-11-21, no findinground 20, safe, 1.01312419, 2025-11-25, no findinground 21, safe, 1.01344362, 2025-11-28, no findinground 22, safe, 1.01391500, 2025-12-02, no findinground 23, safe, 1.01419283, 2025-12-05, no findinground 24, safe, 1.01457660, 2025-12-09, no findinground 25, safe, 1.01473723, 2025-12-12, no findinground 26, safe, 1.01528096, 2025-12-16, no findinground 27, safe, 1.01587666, 2025-12-23, no findinground 28, safe, 1.01617438, 2025-12-26, no findinground 29, safe, 1.01656154, 2025-12-30, no findinground 30, safe, 1.01693406, 2026-01-02, no findinground 31, safe, 1.01733172, 2026-01-06, no findinground 32, safe, 1.01753872, 2026-01-09, no findinground 33, safe, 1.01797733, 2026-01-13, no findinground 34, safe, 1.01862013, 2026-01-20, no findinground 35, safe, 1.01881406, 2026-01-27, no findinground 36, safe, 1.01520366, 2026-02-04, no findinground 37, safe, 1.01159325, 2026-02-04, no findinground 38, safe, 1.00798285, 2026-02-04, no findinground 39, safe, 1.00437245, 2026-02-04, no findinground 40, safe, 1.00076204, 2026-02-04, no findinground 41, safe, 0.99715164, 2026-02-04, no findinground 42, safe, 0.99354124, 2026-02-04, no findinground 43, safe, 0.98985886, 2026-02-05, no findinground 44, safe, 0.98617647, 2026-02-05, no findinground 45, safe, 0.98249409, 2026-02-05, no findinground 46, safe, 0.97881170, 2026-02-05, no findinground 47, safe, 0.97512932, 2026-02-05, no findinground 48, raw, 0.87663475, 2026-02-13, GUARD_BYPASSround 49, raw, 0.91188652, 2026-02-17, GUARD_BYPASSround 50, raw, 0.89074271, 2026-02-20, GUARD_BYPASSround 51, raw, 0.83427356, 2026-02-24, GUARD_BYPASSround 52, raw, 0.99538459, 2026-03-18, GUARD_BYPASSround 53, safe, 0.99891430, 2026-04-24, no findinground 54, safe, 1.00244402, 2026-04-24, no findinground 55, safe, 1.00597373, 2026-04-24, no findinground 56, safe, 1.00950345, 2026-04-24, no findinground 57, safe, 1.01303316, 2026-04-24, no findinground 58, safe, 1.01656288, 2026-04-24, no findinground 59, safe, 1.02009259, 2026-04-27, no findinground 60, safe, 1.02362231, 2026-04-27, no findinground 61, safe, 1.02362231, 2026-07-07, no finding

Focus or hover a round to print its transaction hash, answer, deviation and bound.

Rounds as a table
mevBTC rounds
RoundDateBlockPathAnswerDeviation %Bound %FindingTransaction
12025-07-07 17:36 UTC22,868,848raw1.00000000not readnot readUNGUARDED_POST0xc32d3321f8f449bbea827969533727ae89c5b31e19c24b2e32608a56fc759701
22025-08-29 19:22 UTC23,248,844safe1.00161500not readnot readnone0x3e701d432b1a33ec0ae4510431addec87c6386ade6dfc8d4e917e58ba7c83fa6
32025-09-03 18:24 UTC23,284,358safe1.00371691not readnot readnone0xfa4361ccc98bac99a8be0ea0ecd1a718686d545784563edb9a014d3bf89ba62f
42025-09-26 20:03 UTC23,449,452safe1.00447438not readnot readnone0xc7e625e1c7999d4aba44b0edcea653a764384084a2c4875ec1400e0aed687076
52025-09-30 16:03 UTC23,476,874safe1.00502063not readnot readnone0xaf654f4b53022c60aee0b835b7e48e6e96dc0f47662876c9ee2b720c36416f8a
62025-10-02 14:22 UTC23,490,669safe1.00552971not readnot readnone0x86ddb5c98fe2b7adf301d2595dee65c8d1ac758a725e913a9c49a68c0e8de86e
72025-10-07 19:43 UTC23,528,040safe1.00621649not readnot readnone0xf65a4f52da5b5e4280632a1c04c140641feb39cba8239019b3b1e0dfd9858278
82025-10-15 14:15 UTC23,583,624safe1.00826968not readnot readnone0xeba6f852bfa5a213cf08ed0cf2fd796f386eee60b4e1284b37981beb9b08a1f6
92025-10-17 17:30 UTC23,598,889safe1.00882000not readnot readnone0x0eb622b3e7cfaecb6749503742dde0e7d14b7f32bcafa03c2ac649639377e526
102025-10-21 18:53 UTC23,627,841safe1.00989656not readnot readnone0x115071831bf52ca6249c5926442da053ce61492965368d3202c0124f589a5daf
112025-10-24 14:21 UTC23,647,887safe1.01063727not readnot readnone0x1df7af1bc4c826948e40eeb2ba33aaf72376da0654be180379962b48b55791b0
122025-10-28 17:27 UTC23,677,398safe1.01130970not readnot readnone0x44c4281f0ce100e47bfe14f9d4ba8c5fd29545d5c4df5143cd20db1b0508bea3
132025-10-31 13:37 UTC23,697,681safe1.01190951not readnot readnone0xec615319ee875b7a6a992b1fffa05ff653f2f79cdc42f337c93d49b911d705c7
142025-11-05 20:29 UTC23,735,485safe1.01200387not readnot readnone0xfc697afd2c3a23219529c1675d9c16842fa583ca294201072f7beec2c7a12b55
152025-11-07 18:53 UTC23,749,303safe1.01208517not readnot readnone0x440237076d197a395889beb24430984c15152bcc82192a6a0c25190934b7e9a0
162025-11-11 20:07 UTC23,778,268safe1.01236027not readnot readnone0x467478105f2cf8222ee70550681f26d8578e34dd1b6cd4f9f71c3905f547e250
172025-11-14 16:47 UTC23,798,722safe1.01248977not readnot readnone0x8b9b01a14e1b5fed9b4a9c2e5e2fdb3306bfdbe89dd4cdc3fbb6a86d8f0b61fc
182025-11-18 14:27 UTC23,826,593safe1.01283476not readnot readnone0xee32888c85968e7cb62257be4a8b64a048d86bdb3f222a00bf455a1ccaee0798
192025-11-21 15:45 UTC23,848,353safe1.01294484not readnot readnone0xea85a4fd1343ab2d3170802cb9755902b4e305b52e8db40875c1aeea4a5f19fa
202025-11-25 17:18 UTC23,877,239safe1.01312419not readnot readnone0xe49d765e77de33a639c3abe15a12b9c0dcbdf1bc8a890cef39eadff8954ac34b
212025-11-28 15:16 UTC23,898,009safe1.01344362not readnot readnone0xe7e2a403bcb1845cfa1151801654f354dd1c38fc433edccfa94e3903703f6de2
222025-12-02 17:29 UTC23,927,270safe1.01391500not readnot readnone0x77d391ce46e79cfd2771eaa8fd4e3ecd63957961261cac12913b803ec9c6a579
232025-12-05 15:43 UTC23,947,711safe1.01419283not readnot readnone0x867296f79255372a85eab964824c7db0b7bd5bdb1e296e2247580338f7eb2a5b
242025-12-09 16:57 UTC23,976,551safe1.01457660not readnot readnone0xf9a54cfa44fd529433226a7a5b20c664884775fc259450521f73019c974cf2ab
252025-12-12 12:50 UTC23,996,655safe1.01473723not readnot readnone0xdedcca7da774e5d05ac4d60f03fa87c11c5d3a27f097c7dce485167d7fd360ea
262025-12-16 15:19 UTC24,026,020safe1.01528096not readnot readnone0x45149dac0b4f58c09f6bceec6d06d868840d372ff6b03c4680bac51f7459fb9b
272025-12-23 12:06 UTC24,075,205safe1.01587666not readnot readnone0x034485258d51f02d813d6c1a8044bed139d004672881d295236d44da5e5db8aa
282025-12-26 10:20 UTC24,096,170safe1.01617438not readnot readnone0xbb21dc8c374d2e40f227fa9b317054d14c0b5ea5a4a7c9506bdd1ed7bda744d4
292025-12-30 14:30 UTC24,126,057safe1.01656154not readnot readnone0x390956d9bbc5382d4229f41cb6d3f730b455e1ab14b0cba1b8ee9e7e0507cea8
302026-01-02 15:34 UTC24,147,876safe1.01693406not readnot readnone0x0aa513f8ba9fa654fd382e30fc929de03183000fedbeb39525a9199eb86c7edd
312026-01-06 17:38 UTC24,177,178safe1.01733172not readnot readnone0xeaebdcda2d74a08907f2a872d8b97d713f967dc56e5a7bf074c8aacc1d0b574f
322026-01-09 21:11 UTC24,199,730safe1.01753872not readnot readnone0x290d5a73bf4c6bda8402132f1c62f235a5301d343760bd46e875fad0769fe222
332026-01-13 14:14 UTC24,226,320safe1.01797733not readnot readnone0xbc18dc034cd3ba00554e978b8fa519c9c47cffde73b55ece7fed95e8f0a9742b
342026-01-20 13:03 UTC24,276,164safe1.01862013not readnot readnone0xd85b07ab487d83d63d88b64dd96b07e9987f061222125ff720e789c1d943371e
352026-01-27 19:00 UTC24,328,125safe1.01881406not readnot readnone0x6ab87288f49c1ec95a813c04a9880c83ccdf3568c3148395906e5dc0f3d02e02
362026-02-04 12:41 UTC24,383,556safe1.01520366not readnot readnone0x7317e2735710ef9b74b022ffbed9ec81dc03fff18b84a82d1ba8098e7d71a3ae
372026-02-04 12:42 UTC24,383,561safe1.01159325not readnot readnone0xcb4e76466aede5c179a1912d7527d3ee5c91a09d49b70de19700c5066234d12f
382026-02-04 12:43 UTC24,383,567safe1.00798285not readnot readnone0xb467db92f3228aa8c9b2aa96366981622f6d47dfedf49e3a4e8c86135293f3ba
392026-02-04 12:45 UTC24,383,573safe1.00437245not readnot readnone0x40fdd9abb6e856cc2637b11645876724af0fc61428ace0167b9675b2986f1b36
402026-02-04 12:46 UTC24,383,579safe1.00076204not readnot readnone0xc37ddaeab723a2f0f862e73cf80dc18a24ad7b13245f0a5cc3fe54be0f768197
412026-02-04 12:47 UTC24,383,584safe0.99715164not readnot readnone0x4741e2b583d9b07f52fa90ac285b30e41d159bb7d77df21a72ce2a6161c06c32
422026-02-04 12:51 UTC24,383,603safe0.99354124not readnot readnone0x497fd736c915019901e55b9a77503f1722998108609df68876d43150edb1ebcc
432026-02-05 13:37 UTC24,390,971safe0.98985886not readnot readnone0x99df0bb327bd6f282fd03f52ccf4bb058283dcaecbf7fafc82c9703487d0c195
442026-02-05 13:38 UTC24,390,976safe0.98617647not readnot readnone0x873a047e654b4f077b0520bb9f87a907a891f87714b7f1f960f37ff716e62242
452026-02-05 13:39 UTC24,390,981safe0.98249409not readnot readnone0x331dd1effd76c41edea37b96812229c18d8a42606e96486224235416735be110
462026-02-05 13:41 UTC24,390,988safe0.97881170not readnot readnone0xfa0a61a8c9dbb2dcab4077b015ae97b52f97cae708c89f17ec19a4c267f7fa1b
472026-02-05 13:42 UTC24,390,995safe0.97512932not readnot readnone0x022b8a24ce2d3a7d3f49db281d01a272bf7811c9a27fc19d832219267506aa31
482026-02-13 16:57 UTC24,449,199raw0.8766347510.100667460.4GUARD_BYPASS0x967f8f83a7a04a5a2d9042f1994cdadf49fbc360bdec6a69ca12782870b7388c
492026-02-17 14:29 UTC24,477,157raw0.911886524.021260850.4GUARD_BYPASS0x63a3dc2601b15891b0c2f2187af1cd8702fac8dba26a370bca2d1c1ad7f95c35
502026-02-20 18:56 UTC24,499,995raw0.890742712.318688730.4GUARD_BYPASS0xeeca0df8ddb86e3f69c5d9da696207c3708d9e747106eb8d9f8c318c9adf4b45
512026-02-24 14:18 UTC24,527,311raw0.834273566.339557910.4GUARD_BYPASS0x7f0dd3dc77af6fb94b1d09a4f8439f182b51998c0a25b64c39e1eb2b2dbaafd4
522026-03-18 08:43 UTC24,683,249raw0.9953845919.311534930.4GUARD_BYPASS0xf82b7c2e9e0aa9b8e935f033294c00a74748d7c739f0a0302d172c3a11668835
532026-04-24 20:48 UTC24,952,320safe0.99891430not readnot readnone0x82c28ed33cb8e1e50a7d83780b98fbc4adeb2cebf541835a46ca85e8214dd8a0
542026-04-24 20:49 UTC24,952,327safe1.00244402not readnot readnone0x266b542f9b1c0c30a650b6b2feab91d7c2da94f643b29a9942da877721c02ae7
552026-04-24 20:50 UTC24,952,333safe1.00597373not readnot readnone0x30256aacc5fb389ed2d00f5b22acecd01f32e018f6155624ee0cf2934ef21841
562026-04-24 20:52 UTC24,952,339safe1.00950345not readnot readnone0xc7f68b6de1092a5e59485df6810c0f60c8e3f6ae01023ffe8b751aab077a3758
572026-04-24 20:53 UTC24,952,344safe1.01303316not readnot readnone0xfbca20b2d08bf4a7060dbf2b48e081e96b985676a4954fc319838804d970e757
582026-04-24 20:54 UTC24,952,350safe1.01656288not readnot readnone0x243a37d48c825ea50525280d176e09595c49d96e1baba4f1929d164cdba32b0d
592026-04-27 09:55 UTC24,970,617safe1.02009259not readnot readnone0x076610b2e0990841199e5f042bcdf8c478ae2990f2373c6d504f15dc6856f9c8
602026-04-27 11:37 UTC24,971,125safe1.02362231not readnot readnone0xe46318edce65b2493b88ebec7af0b41bd6283126b8239414df3f090a48cb9042
612026-07-07 20:33 UTC25,483,091safe1.02362231not readnot readnone0xc657cf968932efa39a328b91596c11176aa5e9baca39b4ff4e1c07ff49ccf6b4

Bound history

No BOUND_CHANGED finding on this feed. Bound at the window block: 0.4 %.

Feed state at block 25,949,464

Kind
bounded
Latest round
61
Latest answer
1.02362231
Last post
2026-07-07T20:33:47Z
Bound at block
0.4 %
Decimals
8

Findings

Findings
KindBlockDateTransactionFields
UNGUARDED_POST22,868,8482025-07-07 17:36 UTC0xc32d3321f8f449bbea827969533727ae89c5b31e19c24b2e32608a56fc759701
round
1
path
raw
selector
0xa4381d1f
value
1.00000000
classification
initialization
initialization
true
implementation
0x931403532a4a30fee41bfe79f5b2159dcd0a5b43
sender
0xa6e86da3e51ce8041bea7664bc77b59b42e4993f
note
first successful post; the deviation guard is skipped when no round exists, so this is never a bypass
GUARD_BYPASS24,449,1992026-02-13 16:57 UTC0x967f8f83a7a04a5a2d9042f1994cdadf49fbc360bdec6a69ca12782870b7388c
round
48
path
raw
selector
0xa4381d1f
value
0.87663475
last answer at block minus one
0.97512932
deviation in force
10.10066746 %
bound in force
0.4 %
classification
valuation_move
implementation
0x931403532a4a30fee41bfe79f5b2159dcd0a5b43
sender
0xa6e86da3e51ce8041bea7664bc77b59b42e4993f
GUARD_BYPASS24,477,1572026-02-17 14:29 UTC0x63a3dc2601b15891b0c2f2187af1cd8702fac8dba26a370bca2d1c1ad7f95c35
round
49
path
raw
selector
0xa4381d1f
value
0.91188652
last answer at block minus one
0.87663475
deviation in force
4.02126085 %
bound in force
0.4 %
classification
valuation_move
implementation
0x931403532a4a30fee41bfe79f5b2159dcd0a5b43
sender
0xa6e86da3e51ce8041bea7664bc77b59b42e4993f
GUARD_BYPASS24,499,9952026-02-20 18:56 UTC0xeeca0df8ddb86e3f69c5d9da696207c3708d9e747106eb8d9f8c318c9adf4b45
round
50
path
raw
selector
0xa4381d1f
value
0.89074271
last answer at block minus one
0.91188652
deviation in force
2.31868873 %
bound in force
0.4 %
classification
valuation_move
implementation
0x931403532a4a30fee41bfe79f5b2159dcd0a5b43
sender
0xa6e86da3e51ce8041bea7664bc77b59b42e4993f
GUARD_BYPASS24,527,3112026-02-24 14:18 UTC0x7f0dd3dc77af6fb94b1d09a4f8439f182b51998c0a25b64c39e1eb2b2dbaafd4
round
51
path
raw
selector
0xa4381d1f
value
0.83427356
last answer at block minus one
0.89074271
deviation in force
6.33955791 %
bound in force
0.4 %
classification
valuation_move
implementation
0x931403532a4a30fee41bfe79f5b2159dcd0a5b43
sender
0xa6e86da3e51ce8041bea7664bc77b59b42e4993f
GUARD_BYPASS24,683,2492026-03-18 08:43 UTC0xf82b7c2e9e0aa9b8e935f033294c00a74748d7c739f0a0302d172c3a11668835
round
52
path
raw
selector
0xa4381d1f
value
0.99538459
last answer at block minus one
0.83427356
deviation in force
19.31153493 %
bound in force
0.4 %
classification
valuation_move
implementation
0x931403532a4a30fee41bfe79f5b2159dcd0a5b43
sender
0xa6e86da3e51ce8041bea7664bc77b59b42e4993f

Posters

One key means one on-chain key.

Implementation eras

Implementation eras
ImplementationFrom blockSpacing ruleSource verified
0x931403532a4a30fee41bfe79f5b2159dcd0a5b4322,867,653absent (bytecode scan)false
0xae88328ebd439446ddfbf5584a63db17320b8ba325,300,181enforced (bytecode scan)false