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 0x941dfaea75f50df382b80045ad2ee2e1ec37de638dc8e1745d44b07713aa0f28. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d53e3a43-3735-4a72-83a6-fd5f3b46a207.json and https://artists.proofprofile.net/proofs/artist/d53e3a43-3735-4a72-83a6-fd5f3b46a207.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 0xb8b8f561a1bbb84c749acb927b0748bfe9e90f4f86788624b615c39d75df3751. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:03:33Z), 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/ITV7V1704482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fe7d9de18b85f618093c9b9be07f92433eef29ccfcd93e8bc7ec1adc765b02. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ITV7V1704485.
Gli arcangeli (Original Motion Picture Soundtrack) [Remastered]
Dov'è L'australia (Colonna sonora originale della trasmissione televisiva di Alberto Luna, testi di Paolo Cavallina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26eb622877e217c5c8035b11482e7ffa344747885517d841e97a1f8deeeb393c. 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/ITC046900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3692a87be14bb671c8f7e1780eb7db8f212b2c9d906092d5c956f6316803c994. 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/ITC046900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c248ce0fd15a29a44e540da94d4dd4734e68f277a4e83fa086c8b0c7a316a25. 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/ITC046900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7d2d323bcd37821dd984d03d48363d89f527c8c722cd50a2b55d0892733423. 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/ITC046900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06b0a52fc847bd04e837994b57721769f33a8de29799d7b16f333e447a3543f. 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/ITC046900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0878963ad4f0b1ecb4b11dc367e7b2bb3fb5a23025912ce1b3ead1624a514e68. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ITC046901751.
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 0x9d01906918e959096b7d487de41c2c5fcf755295153ef29b88dc09cc919f641e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ITC046900003.
Gungala la pantera nuda (Deluxe Edition) [Colonna sonora originale del film]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8c7ac0361a7404248fe95979b741a86db764107b65d982172a70fe8c72af14. 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/ITC046801739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca85e46b48673ebacdd33a832421d41506f058cbc01ac30b9779464f118b60f. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/ITC046800076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253fc879f09d41c6345e1d81b5edb4bd8664d4e3b815a208a64d6c36ae60a95e. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/ITC046800075.
Gli Arcangeli (Original Motion Picture Soundtrack)
Another Birth of the Cool (Vintage, Jazz, Bebop)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53da8bdc909986a76a1d8b2db59bbfd5de720543cbdf45a79c05354d33063731. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FR10S2278121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1665ca70e3c3685ec27f07b374de42b66b288bd23416dd579a792dc2b09daa70. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR10S2278114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469767959b9263c14b63d1ace1f1c91f25bc655d6f357d5cb79a024b52eb8765. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/FR96X2546066.