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 0xde66565f8f9804a471ce05ff087ccdb852c04d39e73155189423ee3104ac292c. 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/a0713b46-f6be-41d8-9078-bb1c4016407d.json and https://artists.proofprofile.net/proofs/artist/a0713b46-f6be-41d8-9078-bb1c4016407d.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 0x8f26f2050a06afa70b1f2cb461d41d4bf2786aa851f99a031dadbe72412c073d. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ITY879400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2eae6e620b615b4d5af32ab51a986e198c1a79842e6f782fa5724fd3aaea5f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ITY870000143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf14cc803685b65c59b1ba8ad7924adbafd8121a7f9b5d315038f1eb09c49ce. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:53:40Z), 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/ITY870000145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e30889258c249023503635c133600eb47a12bd4087400c8e6246328dd73de59. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ITY870000147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4d67d44ac6b044cbef202688e90bcd2d62f9ad9feaf32cd096337d9e462f36. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/ITY870000150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a0d34c278f53c683b01d92fe006bcd854cbee6eb9dfdc441ebe428d944070a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:18:07Z), 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/ITY870700050.
Il Dio della gioia (Canti per la messa di Natale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90f10fbfc25b3bb27071bf2638f124cea028e1ec36998d078a42125f0cea0d7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITY870700258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34711d9b3f5220d61fc536c6eb8dc73f01192ccc8819c6aad251d57bb43aa741. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ITY870700261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8ff729c20fe89f211f0b4f131aa2e266ec6f74a7f896ba03969a2140272214. 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/ITY871600299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940b4771a3c5b6d640e8aeb27acc3964670efcfdef83fd68d85210aa82cabea7. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/ITY871600303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa60a1fd27a87a82b3bdd83f6764ede8ccd06342fdde1d4bbda2b72a6aa7665. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ITY871600306.
Il Messia (Opera Rock) [Colonna sonora originale del Musical]