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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f3a42ef1daa6e8017bee81eb5db19c589e58ddd81dc1a9a3e3dd4d5ef870bb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62cd985d-b8fa-44ae-b9e7-3372fe68777d.json and https://artists.proofprofile.net/proofs/artist/62cd985d-b8fa-44ae-b9e7-3372fe68777d.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286e1dd08c6bfed5d65f49d3d9b28356225954411391e245a314dd554dfedbbd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BEZ351900097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b2f3444797e42cf0a3f1b8ee6a24b6c327e54c719053e9464681d6eee836be. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BEZ351900100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeeeef6613ca566dfb64212b1a2523fa912698393dbd0843124afc12d7494efe. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BEZ351900098.
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 0xafa45df780802d24bd551c20a87f4becabc351fbcdd8b9cc730de7722e8ef3a7. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/BEZ351900099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9237e55c21f9b3f8037175f04f8899a4d3aed19b1910dba08d35bc185546acaf. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/BEZ351900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f66822dd56da653197dcff41cc237261cc9dbda8666e5f2f5b0dadc3030177e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BEZ351800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0927030f15efda88656a1db164fdd2b3ed3f90337abb6dc2ea672571ed6e698c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BEZ351800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecf59b454ddf156cb97135fccdbe684e9bffb62d540e1fb8f77d8a76e28c5af. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BEZ351800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a3f50c31a6c8d9f4bd65950899c8a7ae7e3a335b6e662f1c8110bde2584886. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BEZ351800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2019d3c64f54265f42681dd6dbdb1781f4742283bc5e01aeb83f4fe7011904f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BEZ351800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f38e869d653ff5f0b3867dc678bc1610b4bca43dbd1d35eae423b685802050. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BEZ351800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe541f3575bb36e4613a09c82e507ded8a8080040d566b620158d4caaea29ca. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKACT1861282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905a622e3cab7c0b8db0d7542ae8ae13172d182ba25f0ba4374b4ff5c359c1cb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKACT1861283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a12fb5f2293f37fac3c194a975209b8737da9ff3c077505f9ad304de1db861. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/UKACT1861280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc877828d260a96cbcaa9d548e5b4c8bd1534e8de979c357a9dd21199033c4e60. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/UKACT1861281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7067cf187411ea081a698c871f0fda5e3f42b0cc1049184caa97e1e79247cbf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DETB31782111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33ff02f6548bd30593910ee763150864af6e94bdec716c46b466368e1577356. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DETB31782112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2dfa5a3e9e7d741c0a3a56c611b3b333b19b61030ff85debd1cb31c791d2718. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DETB31782113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d43ee24ba96d1119f96289632691a4958d0da0e422d67e614f034dff709b14. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DETB31782115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbfe2f2cf1ed50bc9793bc95cae8d6175bd03df6de74ebcedb7b1ea4a6d681d. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/DETB31782114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acf43db6bf8a3ef96a26afad8be7477931eba16ff8560a3c2b6943156f12c78. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/AUWYI1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40d8f755ea6a202423318ccc784eb5a2618d1bf6facf616d5e338d21377986e. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/AUWYI1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415cee3d8ef89a1c232b6e087f303c5a703d89d20e1663e4ff14a298b116bcf5. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/AUWYI1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe643e9751520e3c50248228da0a4480dc9204b9a32c7658c41219132ed0b8dc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DETB31682072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab4d29d5a41bbe23e188b1b47314f25c3e0c4488020e5278e24bd33c58c22eb. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DETB31682071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44627fcef94baec1585b32d3abc988071434e789dff9a0c4800f7193cd2867b7. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DETB31682073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c9744e5a4812d7a2b9ceb6bc2b98538ea9e1135111ebca60b63317b16f8aa9. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DETB31682074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2aba5bad8cc8c6d9212ff998a68a124158ba17f26df6cd310a6abb5501cbf1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DETB31682012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecce26554c683535e3cdded832f810f04d78e20558a962464eca6bca7c4754c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DETB31682013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde88a1838f4e795796482eece76811cc0902c0f10d04ea1e377f02308ec4a26. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DETB31682014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a468f6b4ee7d81e3f8781064f774ae9125f250ec10f877f4a1e30516958ab5. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DETB31682011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f5021eb5c9e4b02b7e226e40ca5e0383061109d20328dd5610edfa1980a51d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/AULLW2500230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4c0b05da6d941afb0c4d9ee4be7cb1627858b36fd34af8d27e80ecc5e6ad42. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/AULLW2500233.
Slow Day - Albrecht La'Brooy's Friday Arvo Knock-Off
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676f224d9a8d892bca9c2dee2485dc8128c7cc882f2a164cc2ccdc57a5351c5a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DETB31782101.