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 0x1f78237664753646fe77df37b2be72f6c9beb1040852263a548080901383652a. 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/954ea407-5463-41f0-bc63-424f87a54b24.json and https://artists.proofprofile.net/proofs/artist/954ea407-5463-41f0-bc63-424f87a54b24.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 0x638ed5b11f8e288162ccc7792f7d5bdca2797fd43e25e63ce66235da70917f2e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAFN2187120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf155c74eecd26c454db1fac2f38069ab2dbacf4dfdcfe4859229a6f432a6f197. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:31:13Z), 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/TCAFN2136183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd907522cf03fa03004c327f1063627e46c1138a9e66f91a4c406cdf3362135. 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/ITNIE2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d014e283f42b19464d5f1cd9309268a64be279507c0a4db9fb675dcb4dfd525. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ITNIE2400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd907522cf03fa03004c327f1063627e46c1138a9e66f91a4c406cdf3362135. 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/ITNIE2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4473ee4e9ad9689edad8f037f09dd9f98e0da722a36d10fccc969642efc1cddc. 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/ITNIE2400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf820317d33458fa31286572e8d7187ecc6ef4746fd512e8b0b8a10a94f9e88f4. 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/ITNIE2400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4abfb2fad0b157fffedc0cc89695b4360b26924aaee9ee7a0a411e24084733. 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/ITNIE2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fa39d6e95c95d4c0bea4c8d32dcd3ea56276987b5adc69541c49a70ba41ca1. 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/ITNIE2400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa940297e5ca5920a2c4cda20ce14442b2465729f8d2d329c9ae283c4df6ff3b5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITNIE2400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f92e1beca2a500fef360a143eea2bb3d9938fdd4b9d0e943e13038bb6fe3b8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITNIE2400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd907522cf03fa03004c327f1063627e46c1138a9e66f91a4c406cdf3362135. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITNIE2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba29f0fa236afa672307393bba60fb6df79fda15853f939514899225c881249. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITNIE2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08a198436695757fc55ffe45c68489aa86e8f6bab7ebf53572c18a14a326d35. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITNIE2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7878c821b45a8b9dd7add0b98dab36acff3da87a719dce6f63e8c8174b29ddd3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITNIE2300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f903003142bb0eae31d2eee5f3fd15f74496fb90c763c6296fc1996743ba1e7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITNIE2400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd89bbf2e0db0ea9d00e814bf363665a0679a26ece7b8999cbec5d1a6ec4ee3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITNIE2400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3206bad1b0fcd5e9b3483e26d59fb2d1b914f036a14a91b1d2bce52bd3f4749. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITNIE2400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef6c3dc3d75bb1ecc737e1328f80bfd7c7babc4e9a62728aca4c44ee9c8ebe2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITNIE2400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00bfbbdbc7c72d2ff394f9b49a0d273ff9a1ebdfa0292f42d1ef4a71b5d39f8. 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/ITNIE2400045.
Nato Nel Posto Sbagliato (dal film "Tutta colpa del rock")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b70d6dd86e8aaa05a0bf091f5f90f51ce1121c738d36288da855c26ba565e24. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB001900276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6daa54c35d7c5e2f7c6bee0fdc32beceead87ce0a5adbc763f51f20689e297a6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IT6KZ2300004.