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 0x73e47e8705aa44a1a062a5cdd1f98671ec917a153ab684bc46c3434c43b6d7d7. 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/a9ec7f09-71be-461a-a930-3ecc16f5a164.json and https://artists.proofprofile.net/proofs/artist/a9ec7f09-71be-461a-a930-3ecc16f5a164.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 0xfe1648aa3d57f1244536a3e26cc2c04257a40b1bad6faac2cf44a8282659ba56. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/FRU192200765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9a7deafaab3c82b08e6beb7abf27e2139d73d839b3080073aa480af0961b86. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FRU192200759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cb06f3e90de20db6b1ddd37f7bc8404f0cc62acaa27b885fda96ea389b4b29. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRU192200762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ff37af225f5ca6cd7f202377387be6ab55d878c965dda7fb23786d3f5d06fa. 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/FRU192200761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a729ce2905f555c2c42c943ea16b938e81a538d7e53c82a19608390376076b8. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FRU192200760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdf603e78d07e14e5fa809ab2532e2707c9e6afd4e30183f1d5b8c7861fca7b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FRU192200766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a84dbf42fffa0627f5cd36d470f3dcd0f85ececbd976c7e604c8c5ad605345. 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/FRU192200768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87688583c680bf553b1775d2edee52a4f39b5f3f6feab4ccc938f338e5558e6f. 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/FRU192200763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c85ac883764e1851b5bca68cb022e68c6134f730c604a9659eb052bdfe15e6d. 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/FRU192200764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9d15a8a7f7e428096071c7635b84a0fc8703c59b8ac67590bc36d0c1380217. 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/FRU192200769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ff37af225f5ca6cd7f202377387be6ab55d878c965dda7fb23786d3f5d06fa. 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/FRU192200761.
Indossare il mare (Giacomo Lecchi D'Alessandro Remix)
Indossare il mare - Giacomo Lecchi D'Alessandro Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69733a6bc32f1eeb84ef1ae84e5c517e0a25ea48ddc54cc481e39357835f11f4. 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/FRU192200756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04df9689b7fd7766111679e56321fa420e0fda94e0257c396f254fc12d624824. 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/FRU192200758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742f63d221a86fb3c003e3747d8e47e249ca7f7bba254dcd3de3fb6838368c6a. 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/FRU192200757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357b2b4d99c1041971ad60f60da072a92431d900721bf228be5bd818f4106198. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRU192000544.