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 0x8531325a4cf03c37d882f8b82131a7f0391f24094585156443dcd2878ca8638c. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f877d025-f785-4610-95f0-778fcd9231b5.json and https://artists.proofprofile.net/proofs/artist/f877d025-f785-4610-95f0-778fcd9231b5.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 0x895bba14205112f0dca50cd204e2234a0b98ca5cbb73a525a8a543f62a7cd270. 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/USCN30200283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c137456c0cd833bfcda06693d496c5b66a7479b70f390bd3e4268e6e9ade9fd. 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/USCN30200284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e291c793a87291cada02e07b8d4f8d0b8e2a7727b0a7d31854228a9ee5fc95. 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/USCN30200285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f875951df07c375d558ab152bcc8b612b4641b07419686d70bc661ef46a83e. 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/USCN30200286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65998a2ad3735945becedc3bbe6b454bcadeb8644f39721843855613effd38f. 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/USCN30200288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f84bc303905550de9d62762c9e01701556d7689387cac45363cd219fdc22e7. 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/USCN30200289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b610a569cd665f358cd089ac919216ad63411b10f399660bc5262073a90bccf. 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/USCN30200290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e410e9ff3045d86d82de2e78be15c5d4e86791a5f6fcedba67c7a587d10296. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USCN30200293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc24d19c7e56e18e4d097211c4de5be23e23ad2058b55e3ce0350b106c05bf24. 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/USCN30200295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc381905c1985e9090331a6eec1cef668e4206a494091335ba6602b6e6d5aa3a4. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:19:17Z), 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/USCN30100296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a641c22cbfa733796a6abacb8a00c61b9ccc78a0370dc5fb2086dae44155deb. 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/USCN30200297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e0739c9b99052d130afe2091992dd474c002782340e13413d9fd5418c9acb3. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USCN30200291.
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 0x3457ce7057d2cb1bf91ac3d538a543ba49f697722aa545a991839a8c3be021ef. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USCN30200292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0241d7fdd58866548bfd9056c0ac2ac6746355bec72d2b7a33d6008381a6d3. 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/US33Q0400181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c9248a5fe32f80a451757b21cfc6cdc535423117a70aa8aa7b38c72e885559. 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/US33Q0400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce6538f3d704160173f4956c5d645587edb972ba9327ded34326bbb5e6a4946. 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/US33Q0400183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49205018c725c17a886d88730b4d39180631ab487c66e215ea8dbeb66e610264. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/US33Q0400184.
Let Love Fly - Joe Claussell's Sacred Rhythm LP Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3ca1d221e071cb432acc6594fee0f7572719f73bfe4a6b8c119e01d8952fcd. 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/USA670601661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4236d7a8e0893505ef4d4aebb4ce1f97793bf9b7b1a22411b6460c47e357fa40. 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/USA670501065.
Moments Before Dreaming - Idjut Boys Remix 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9594ed910aee2fd95a6a18628cac53a2b94d006932fa0a7c521244f4c4a380b9. 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/USA670601662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbceef310784c284111c9340f3b21f79c749dfc12cb0fe2e9e13d488d83db7b. 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/USA670601338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9599f0bcbd926e0419168a9ddbe227b2c3df7fb6dfb40acab28db71a7c3707cf. 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/USA670601665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf597c5e5b5ed3b6c0f1278298c952e26a9431f296ae8e0ae134518f49d740e7. 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/USA670400264.
Cascades of Colour - Wamdue Black Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8ecf6eb48a5fcf4972c5c5364b0945ff6a8d32306faac6c472c1099347e002. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:34:34Z), 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/USA670400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7e2045351a7795619a2b1c864b2b6f156fbfa3d950c5d4d10688c5d9c2aa91. 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/GBCHV0150451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc50e0eb52193b62133efb32e85c0bb607f81b44e7af47a981eae18ddd4d9f24. 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/GBCHV0150453.
In The Waiting Line - Aquanotes Naked Adaptation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacaf9a8d8c37b22b183581659d16627bc13345c3ff2d3a4f0829992002a50c0. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/GBCHV0150455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb09991435b5b22d76b9463c9774aedb45171e5950a0cf277f3aae49c936ea6. 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/USA670400585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30d6471c6f87fcf6d4790c54c1730519ec951870e966d127bf603c3ea66b9f3. 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/USA670400599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3aeaf31f80418aca63165c943f2e05c389bcd45b74c02a47f23ce57f3a0d0ed. 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/USA670400591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fc7b415e3fe6bac4535d67d1163f1d1bc12a36068f2e90a103bbf39825f8a3. 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/USA670400594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ed5406dbc684a8319c45e31253a7e23022474b82af3c462c2ea4628d5f6126. 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/USA670400596.
Justice, Mercy - Aquanote's Peace Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03f026139ccc9d828d5b4d898ab72e5ff647fd1896b96172d2f88a2e7f3a80b. 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/USA670601706.