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 0x1c9c61f4d89df328e1eb8d944c45053bc06f217c661eb04bdc195cc7bfdf56bc. 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/c381d4a5-fc88-4a38-9e86-cc3d4e7a6bcb.json and https://artists.proofprofile.net/proofs/artist/c381d4a5-fc88-4a38-9e86-cc3d4e7a6bcb.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 0xaeff127d920c15ca2fc15b2fa7c72133799d6974d8d9d03099fb1d6c30f35363. 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/QZGWX2049444.
KING (A Celebration of Songs from The Lion King)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b97e0cd3a3d1cf034f843f6ba410a7f40b53ddd4e26f8ad90fdc1b549c84d3. 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/QZGWW1926260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0181ca16eaacbf88226765d654fe6fda40cec6df951802219355ef227b6cba51. 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/QZGWW1935943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a418a2bca34b357993b29649ad66b7473e1cf38436196cbc2921688dfd0e531. 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/QZGWW1935944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75376bbf3f4cf79d28eaa61efc0c8c20c8aa9333c102f947f3aada6c85167605. 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/QZGWW1935945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae23ef4cc38cbc1f1346091f4a0e3ad51673fba719be47190babcf85c680943. 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/QZGWW1935946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc151ab85a5d2b81f1520e46ac3bed5edd649f06b19680cc63f3d72cf8aab9355. 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/QZGWW1935947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd197092c231a7eceed78184350c180d85a302665c5a19c142fa6417f85d1283c. 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/QZGWW1935948.
King of Pride Rock / Circle of Life (Reprise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecaf96bd50dde337ae72ce7f62df43a2053929293d7d577a5333ea50fd196505. 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/QZGWW1935949.
Beauty and the Beast (feat. Jessica Sanchez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6447c6692e2f952f5bd947653c51405b166867550163c463dfbafd63950e73. 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/TCADD1762884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a52b34e83e22544cde8fdbfc462bc715ae0669a582d6b82825162f2d0020b0. 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/TCADD1762891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d28b551af4f6474d6e8bbb64e85a6ff7ab60f587fc10ce533cf74eb60ff3ac. 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/TCADD1762892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2726067196cbc38d997a263ec00984e124ba289c3a7f4cd0667795e2a0ebd2. 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/TCADD1762893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf288c6029b83ee3900fb9660118ac80ab110c33a8ff6f708c8909f075be5f9ea. 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/TCADD1762895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc5b8ffcb1ddebce89c7b3f79725420ed57aa9e8963a08990b0a271213e8aba. 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/TCADD1762926.
Have You Ever? (feat. Mario Jose & Vincent Cannady)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a17d0f6711421d650566b10c0d4f2950be259d6853b207ee1c8ce820293545. 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/TCACQ1662979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98dc94bf445190637da5ec413a17af76302eaa7542ba66fb7c87f75c959ad1af. 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/TCACQ1662987.
I Was Made for Loving You (feat. Mia Pfirrman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a5c0ffdb6a19fb997fe07cc5e3841cc284183eb1f102ac14624d90c5f33b10. 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/TCACQ1662989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95301bef89837e5c72f54dca87b19f20d5e0567271cd02b4c8c097f4d32bda0b. 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/TCACR1633300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe247debbb05f6f71c76007f07b964122cb944cd4b450de8a09775797c22c48da. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCACR1633302.
All I Ask (feat. Mia Pfirrman & Aaron Encinas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5489d0bbf3135dc7ac1d6ea5bb38d4b6c7759f74704f8ae530c62baf1e52f298. 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/TCACR1633303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a5b100477fe37f6b310325cad1cadf2cf354b558e5983c76927e662b6985d8. 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/TCACR1638363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250ed6b68cf044b83e32896e8661c8a9fb359bb86f9ce0e5e83986cd8ef3f125. 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/CA5KR2171044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd725bc1971217f82d68876149c2002b5113c145d9d57ed99a476a0ce02ff5268. 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/CA5KR2158728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294556e351cd343f0768e6c34b7cddac47bddacbc38357f35bba43f96ce61b42. 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/QZGWW2138372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcc075dee1705190a75b34c2ca749880c6ad073c5815d8eeafbdcd7c4819c35. 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/QZ22B2047582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6489ba1a4e2ae2ccf460385e64923c42960a04779f87a43305b54f65d8df2b. 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/QZ22B2022136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a89bf85946bac9a7f6ed50dd0f331d3ba1ae1411dedb50cdca1dee2e1d2665. 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/QZ22B2022134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c0aa8321dfc548c6875fa76b3e7ff491c2c4905eaffd38b23c1241b3013780. 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/QZ22B2018512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bdc92aa91c17feb35a9734412f7c19a46c6feb501849262402a3be69b81c25. 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/QZ22B2011275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1847a93181006e334d3e2fcdf439dd0ded9d00d8d6a9a39b2dd7ccd4a6de9a88. 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/QZ22B2004515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f585abe9c7e2d38eba921611369ebe52febf476726230b6a35e7b37b2dfc30. 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/QZ22B2001436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea776f954282ca5e42514c8470dbecd53d7014926468c4a108e08eee08e822f0. 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/QZ22B1993916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c19e27192e1417b87074b3b0a5f4a6c3b20a4fa7379ab587b05395c7603eb4. 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/QZ22B1925770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc306b5fa3475eef076031da091e6315eed81a206fd17d0f21c46c7e51dfb30f5. 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/TCADG1784444.