Bunkface is a Malaysian rock band formed in 2006. The band consists of lead vocalist and rhythm guitarist Sam (Shamsul Anuar), bass guitarist Youk (Farouk Jaafar), lead guitarist Paan (Ahmad Farhan),
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe885d605267b16933578d50dd071d38b7518b73da17326eb74d2cff585f2d570. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d87574f9-32f1-43ad-be7f-d489a49d396e.json and https://artists.proofprofile.net/proofs/artist/d87574f9-32f1-43ad-be7f-d489a49d396e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab73eb42f10e539b77a2ce1bdea38014c2f8e9dc390b2d52430047cf0084acc4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81606851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4accabf2923bf52b2d09e4bf0d4761fe19911770944c2e673687239b5e0201f. Chain 2 (Bitcoin): anchored in block 957564 (2026-07-11T12:19:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81606855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c2187e19368348dd0db800606b8ae3e3af049cc7b9a68313b85e1fb80958c7. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81606856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc874c6fcdb81d54317a500f854b0f38688f62bf987673927e89d51f4d1520cc0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81606835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92cc144f8547fb033c96fbd9b2d914240434b8fc59dafc292c22e9c47cacfb6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81606840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10b5da918ad78696cff7d49470c2901a7fc867be6eb2d3bda051659b50dfa4c. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81606842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a84992e7403a69ec37fdbb1a2ad40dbe61b208f206562f8a968e073b99fecc. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYTP11200714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780c7461c75e1e69d68417ee2a6fbb507fc56d3b8b14322d766f61ddecdc6761. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYTP11300588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92cf2241340b7b4540a79935659231daab416c9c9441ee87964d51c429409b5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYSM14200501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb9e9dcb01a4b44a6691fcaab0ad772248fa9b56a638c052fd4b6179c1feb55. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYSM14200504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db4ceb86dcaf60473b76e8db7be7de68b934e41a4581ce274aee46813949a3a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYSM14200509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef72b68d01e9c8016e829691e7def10c278a43582da6042f80b0f9780d474e9c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81606833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8e68fbab2d68d66d2fef471133a44b4eeda0dfa30382697f0334298d33f948. Chain 2 (Bitcoin): anchored in block 957564 (2026-07-11T12:19:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYBU11900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4331d77d72606d0a826a3663f55ce57a4d6c4353dacd3a502403b1b4a52ed8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb418d10962b7f1d0b2e55e36694f8722570799169da26c3b9b8a90aa7c41c1a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81807067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55e45e360763b018489962c595c0f344c62b7d140831df89c6042a10eb582cf. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f06b1cb7bc6d772e1be90cf0da24c93c481ad3ac0f6754c9224c675d2170a6c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155ce6d909b429839d905391a4b1383332b5f2cee8e1c1ae8c8213b6fa7f34ff. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5e95910dd652b73b8c11e9a61121731bfcbf86726a78d85371565424652e91. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYUM81907129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade0d67003592ca3cae50fe76025e95ec2394b266268f8ad9684314c92c1f9ec. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X2116601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a906a6fe29c1645046153717c1eb65d7ee8d98016c34b898d1f5008330cd713. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R2301294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817b2b300d5adfc3f5a6db8175e4e5f05164bd26023a452bf2d4bdf6b6845803. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282318450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d1ee9b42b80a65527e61fb36ce2468d9c903a66d687781eb7fd1e1cbadc888. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYSM14200507.