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 0x9911a9d1831fdfb3bf0c19e705ba09a7de5585a01f7967be7df03bb1ada60483. 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/8fe3327a-b953-4802-9ee5-8bf9a61517aa.json and https://artists.proofprofile.net/proofs/artist/8fe3327a-b953-4802-9ee5-8bf9a61517aa.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 0xa71a50e1f96b35cfe2c70639b4497c954de6b4e7f6ec42d25d9b0158b5406d8d. 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/NL4AW9900702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53daf6e9bf972bf2af36e2f7d6933eda47c47a59942c714bdd9af66c265e13a5. 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/NL1S62400611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2ff72afc640cc4e01776f1204c8daf9993b9644ce30cc8004daf666a48b217. 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/NL1S62400571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851114c2cd44445dd99c25bbe7a6a54e30f9d969d0f5d19e3fba210ccf434e15. 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/GBKQU2426567.
Cosmic Journey (Official Eternal Bass 2024 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86301f39d7e56626c25e603fcb3d3824fe6f822611e5e0627b6b7038d7ebd12a. 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/SE5BU2404728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a81667df00defb651f88d56e2a6eeff83fbba549cee8aeb76ffb6beb875b09. 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/SE62M2357800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03bf4c8be10d410f435fc150cfd3b9759f6672fd898dcde6a5c9a75addd21cb4. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/SE6XX2377148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fe4844913c4a25e84d3e8b7af0cbeac7dee9a376305ec13e9bba99047dbbeb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NL1S62500901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e94b7fd1aa44af67bb98f9fd283a1ada2d9a01e80cfb5ff136157d57e80259e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NL1S62500871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564d5ed295ce4b1857202b4658751d8c452d1246888f7314bdb75aa967e09541. 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/NL1S62401711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6395b2dd95a4bfd63f450bdfb49c31c9d46360b0cb894586e7825c44c734ccf. 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/NL1S62401721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539081f809b7f73bc4b26b9e6bc3046398173032e8532df102e70b3c5d484e00. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NL4AW2431902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56b5cc5cf2ee0a6395e2f59156cb414f26f389982fd732ed4b31de568a518c5. 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/NL1S62400811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9b134eac5ab288774e89b872ad6e7a6742355153c10b686d6906b9181f7896. 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/NL1S62400771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdd495f5ae9784a258ed7c1616601ea665bea809e0615a89bfbad8b13638d4b. 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/NLH2L2400307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5930fb4d1773481e78a539b6800ab1fcab8f395e1661c3e863942ce2c29d47de. 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/NLH2L2400308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a32d778d8b0a08285189c9ca34a082d72f4a5cdc7db9fa23cd14035b5f7d40. 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/NL4AW2431002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef51062967563a66461bad4773a4a4fe292eff2570e0d95e232c4a6ddfff45f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NL4AW2430002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb60c78dd68d72b6d46cc690a2093a4a2e60947e1e7f43148c84dca5b1994c0b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NL4AW2429002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9901290ccb02fdb1bd88ce2d289011db55116e4a4e735acd58f260bafa5838. 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/NL4AW2430602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da124172e65bd129abe9d1a8dcbb91cdca3103b3cf0c09a16957fcbfb9e4aa7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NL4AW2429102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24acffbadb286edc1040b2316c316da45d068c090a9af828110acb128ee58267. 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/NL4AW2431102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d7bcfb1b4c1dc6f028195f03d0b76c7635f970a496adb16fad9ac3cabc1fe9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NL4AW2432202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e3f545f2bdb4f3ae96e51b4c24cd724750d4824a5724094b1c79628bd2a63a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NL4AW2431302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268aa17baca8952e4fb8a0a0a1e3b48613a9594d86a82090b947f44ce5bce36b. 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/NL4AW2431502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7903f7a984c95c4a2c50257295e3ac9e57e9945b78029d89ee1ded64c168b9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NL4AW2450002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd066b2b3e83a1623e88189a48b6ed9b752b7c8cda76998b335429cbe4922ea. 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/NL4AW2431802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5659c242fd955fbaa6fd564be5329096f6806b00698a087d18035b109a983d. 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/NL4AW2428002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc117522a437365fe4fc8e1e23f6ec5441ce3c2da862b900b8c984d3f1a5aa377. 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/NL1S62501001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fe4844913c4a25e84d3e8b7af0cbeac7dee9a376305ec13e9bba99047dbbeb. 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/NL1S62500901.