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 0xc9e0fb9dc0f6f40cbc61821ae382f3d0aa19db7757ef459f4417b98edad131f2. 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/3082f4b4-18aa-44ba-8a73-141e0c69b287.json and https://artists.proofprofile.net/proofs/artist/3082f4b4-18aa-44ba-8a73-141e0c69b287.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 0xfb09d862079b2205648d311ba9ad6157d0dc88c269056dd101b6789080d0bc7b. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZ2V81600626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb376e6b80424f4ecc66b3f925db934c8b1e799bb4fe07c58b5323cb7cb68875. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZ2V81600631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5f80ea88a43fd6af92ed05560e28ad125e5383e41aea422c28357c1061d030. 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/QZ2V81600635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c10625927df4d8e2198f5ed0e2854e74c4e3bff6557dd3fb78cbe3c7369d27. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZ2V81600637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c0baee8583b1a50de5c42248efe306385b8f7cb29906e9d1004d0330ab5d98. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZ2V81600638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d194c35b34d133705246e067de925bb1212b14bdc97a436fea0d4ba141360e. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZ2V81600639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf049f2a49fb94007125d8bde5ff96a4c02c9f786cbc3771509decd3e92f7821e. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZ2V81600573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f6feb2917720b99621cf88bb31422a7a7bd105a62fbde358bd837fc7954d3d. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZ2V81600574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e8d0b03bbd9f525a9343d8cebef6e66aead50df448b58f107bde9fa65a5d53. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ2V81600576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394ceb0d5b4a6cac000e9415c9d82a35c09ec658139a42cd10a7c63b73e225d3. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:01:54Z), 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/QZ2V81600577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cd2a984743f25509ee065285da5810c83dad0a89b53831b5e792e123d03627. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/US3SK0900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc326e925bdd40dec016551f40cc82c2e225109775f93112dfb55c61c77d0b6c8. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:03:37Z), 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/US3SK0900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e634ea866850f57a0e89a5fd31dbc4904e4361bd01f4a17bb61865baea52bb6. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZNJX2300109.
Únicamente Tú (Homenaje a Felipe Pirela)
El Mal Querido / Entre Tu Amor y Mi Amor (Homenaje a Felipe Pirela)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667520b5ff1939752eea17a3bf5496e2024dda191617da121da36c059497f51a. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:46:09Z), 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/QZN882221321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c0660039187310bb6df4e2cf43145ffdfabb588cdc3d7b17f4b38898f47a63. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZ2V81600633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b27c191d8693efb195409c6e84fa00bf68a7e6f703f5b24af425223c8af23fc. 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/TCACC1445259.