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 0xa50563d7db1fa0f03d862199cd58d84e1e9cc5cf197f018be68018124af9ffe7. 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/3e404031-aa6e-4646-bd37-ec8798db6aa0.json and https://artists.proofprofile.net/proofs/artist/3e404031-aa6e-4646-bd37-ec8798db6aa0.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 0x33cc273480f58078b8901a4ce7e4155fd7564db40ad200b4a13f4cc9c4375646. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USDY41587937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac20b210d0d6d95421538bf7f1bcecd3e13c445a7b7ca118c29a5cdcb120813. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USDY41587938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22885710bee539bcb3250713901139e0ffd1a31c2f263f7d4d9cefbd4e1d7687. 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/USDY41587939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff32268708845974b59e02d3d2b430a602cd00b28a1001449de5b5f05b9af891. 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/USDY41587940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004abccc066a8771d3935a705ea84ac4ef236ca5c7dc68ffc76871d2456a3d7f. 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/USDY41587941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21f1c25775f1463112801be518e9c348b882d059e1b8c971b165aacb09d7f9f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USHM21563758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e07be62a8c316d2d1c388661b174feda10a44160b7d3d0b6fb1f49d8cfc4e74. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USHM21563759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e8415cba8ab85885ebbd40edacfbc1204a5839a8737f5ed376d3efc446f7b3. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USHM21563760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a5c00bd0f41caebe0fe6f1d0514e158dfa41d64c6df648beaf91f89eae3758. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/USHM21627582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bea99a13b672bfff233720af257e1fdd20551fd3425569904865cd71b24d98a. 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/USHM81623298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77d7ab423697f6ec27c8e3282225a099ce81a5fb0fedf00726f5096528c3907. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USCGJ1750333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebf876ecc496812c5e03bdad3b6a3c872aed880be0f3be8e823afea956cece7. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:24:10Z), 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/GBKPL1899009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185e9d30b92be32f5195c9ab0d345ef9bdba5cc5f4ac50d7feeecddba6d711e2. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBKPL1803394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40f2d0a6c5ff53d53e433b58163e3531f04e362e120bf57e09f2bac05569869. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBKPL1973476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0766afd913269de5a5d4b157fe5219b6fd74f84aa44eaf9182ff941299f46b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBKPL2035575.
Everyday Oblivion (Unplugged at The Tannery Studios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943b31929aad7f4b8142e5330558431d55921cd79080d34b4afd16e4ed84f6aa. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/GX3Q92357698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbece1853d9a664aebf84f1c1e9094d8d1b82261dcc39e6705fbe5e22f624e0. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:05:03Z), 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/GBLFP2329879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10050d0170fb8ce1a1ff684476648c7bd20b197b0cdcf5a0d0f92aecb962cf28. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/QZFZ52060932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d81930746db034f25bc665b8aa1f5df8b56791fe1cb0aa184b08e882447f04. 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/CAC4A1600220.
Breathe (Louis La Roche Remix) [feat. 8 Graves]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ff22c611e219b56d82ed986cec3212a9ebeabc6f00e9b479991da81246d932. 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/USHM21684398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dde349600734e57f03ca85b42b870f7026b56624ab9eba64b4e9abf167a3c6f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USDY41643535.