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 0x5794d8d885f6fb36a4b68053d64b86688ccbfc858630002c48ea7fdd6dcdf834. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/914bc9a6-2db4-4774-928f-15215c2a45fe.json and https://artists.proofprofile.net/proofs/artist/914bc9a6-2db4-4774-928f-15215c2a45fe.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 0xf39ee62015548737f97861f3f64305d0ad8ee2b9781b43a4ecc2702239c0c334. 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/ITK602200246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2349e96214d44b8da77c5e76dff14d390b9fac773494c41c19040186f4c742. 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/ITK602200247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe052c3e6ce5123e28b21abcee738df84743352250809ec51be4a7f7663b67c27. 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/ITK602200251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b6626ad8678215f155749d8946c5a3f0ac602445ffc5e0cb258944e0869074. 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/ITUM71700982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f34b8675876306580066666c330d31ca0c972373a732508d49b76113ab24a10. 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/ITUM71700972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db9ab9b5725ba4206bf7f055f2388f44e1a5cce60a3f0d41900b12bf754dda1. 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/ITUM71700974.
In Questo Cielo A Novembre - Remastered 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ec9977e90bc3dabb8c5a8eba916cd63ba6dbdadc4299c301a3a291848ced57. 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/ITUM71700975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd894461f37b7e916e67c214b6f2d54f1b9cce220495046de7bc3639bf34648. 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/ITV191500106.
Storia, Vol. 2 (Collezione singoli 1992-2012)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b64f0101c009488ef681bf7373ce6539937fbbf83bdb1defd663b9714d94e7. 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/ITD000400159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5bfbdb7ff7d2e22f4b38ed168a79f998367eba447e264196e2fd5c892c7d54. 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/ITD000400172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b64f0101c009488ef681bf7373ce6539937fbbf83bdb1defd663b9714d94e7. 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/ITD000400159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bc0cecf3b35cf1db17da8e53138b18f1538566af824f1d57736edb488b1cd8. 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/ITD000400160.
Dance Citadine - Versione 1984; Remaster 2004
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ff52831d1768614c01859081fb180b427efd03c04fb5cb0c184b41c0c271d8. 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/ITD000400162.
Vorrei Regnare - Versione 1984; Remaster 2004
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b531b2eb9eaff3f6fc985c66675cd888fb8de081a02340ba318259fc1d1551f. 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/ITD000400163.
Quanti Anni Hai? - Versione 1984; Remaster 2004
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59cde231afd4d5ac20cb642f0d67beadf3ac2eae916b3db3e4e800d223533610. 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/ITD000400167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75af3ab5c6844def2dacb8ebfdef737245e5d349ab8a529f5b327fe077edb94f. 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/ITD000400170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5bfbdb7ff7d2e22f4b38ed168a79f998367eba447e264196e2fd5c892c7d54. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITD000400172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2e441e91f72714fe0678fac61c29ed8e9d3105dd8bd4a5d3e710ebc2ca7cd7. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ITA619904139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0027981ce1f12cd5d024e44e0155ae64e22c9abe4824138bb176c8e7ac8c82. 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/ITUM70700880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2488c86f9bb8ce121224aac205d458f40e2bb3d9985269e155472576190312a1. 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/ITUM70700887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6570e3903a1b2dd3ed0efe78ee4ae106c79f0837d2635a2879f8e61e65d3cef1. 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/ITUM70700895.