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 0x048cc33b0f1808e72d69bd4dc35596c247864c160f9fa6b7aede7e0a292f2d33. 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/90bd8606-165d-4fdc-a9b3-7b3763f215cb.json and https://artists.proofprofile.net/proofs/artist/90bd8606-165d-4fdc-a9b3-7b3763f215cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La vita che vorrei (Original Motion Picture Soundtrack)
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 0x7e5533f0094cd7b6118ca2ccfe87043227b7a404ac7fed4028246a39e0fee597. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ITC000403180.
Sotto Falso Nome (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b8e5e34a1f34ce6e3dc2835b150fab6d94c3f9979354da927bb0384e69e85d. 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/ITC490600133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebdb78090df0e98b0dd1ad8d83055eb844a66b6f17da0364185a25d3bd734ff. 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/ITC490600142.
Nei varchi di luce - From "Sotto Falso Nome"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0324a6695ea8210e4c4158558e9881248243c5716693fe6d4e809e3cbd332ac. 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/ITC490600126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9150f0e1dfe3d84ec98e70b2b71b6cfe955aaf78bae768ba8d42763bba2989. 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/ITC490600127.
Il viaggio d'inverno - From "Sotto Falso Nome"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aadf7bf9c5cb8ce68317e2db0cd02d571abfbfcc82d10c92385d45d14804564. 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/ITC490600141.
Uno strano destino - From "Sotto Falso Nome"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34859a83a738804431f4e469d3d9487fb96fa1310c7bab407b7ce820b8c8bffa. 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/ITC490600132.
Il mio segreto - From "Sotto Falso Nome"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecb463a1f053779ac016697584dd5ce0dd586453547239c0d666760ec5a3bd0. 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/ITC490600135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb5c56d10500c349e2a43ca5661963906a224fb5288e73e5a8de59bd193bf2a. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/ITC490600136.
Sotto Falso Nome - From "Sotto Falso Nome"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7662ca9e540f506e74b2c21139bdaf7c618cb39c20f4158967640dfe51a4e4. 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/ITC490600130.
La casa nel bosco - From "Sotto Falso Nome"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4681f17d40169a316939e85de204effa33e71010fe69c10fe56cf5d3a53cc7. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ITC490600131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca59f4112b574b34144386896f695b2c5173611829f04d74e7105d4bad99c3a. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/ITC490600137.
Soltanto un ricordo - From "Sotto Falso Nome"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c431e5358095121f917fa2a6030aea7864f362de0ca96fc0b6fdd47e2678685. 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/ITC490600140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8abf90584e98488c9fb5b662a25eae019303bea4165c42f5f7459ab2f0170a8. 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/ITC490600129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb646fc80c82350d10f86b8b91c55a617ddbdb496bb136ec6f5e0fb7e1cc46b07. 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/ITB281500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f215af54c2e1bb8e97d39a676cbfdbeb6b30082f7a499d73d60f09be47e65bc. 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/ITB281500117.