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 0xed27195e5fa1f6fdcb718c6699828ff5c3c757c8982a03e32d491b92b5861af0. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd3245c3-900c-41af-b3b1-bdca36a7c726.json and https://artists.proofprofile.net/proofs/artist/dd3245c3-900c-41af-b3b1-bdca36a7c726.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 0x013766386c51bd11fdca0232b0fd50b60ffdbeea05fec6ca28d2a41f34ee8db5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITQ740800113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e69799b3fdf775ba88fa1524b0dce533f85077b8f93bacd7a687f84475b496. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITQ741100870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3c48c98b2d7188b2fff03b9a1dfe7ded9109c72da31eeb1823718a29ef350c. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/ITQ740800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8a399b94b6e5b4b1434d36682d2e1773144942f7960a0e66a6cc0398551296. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:58:47Z), 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/ITQ740800140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff011c2217cf488c296d7978603adeacd66157137d53977a85ab3fb203fb9541. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:47:27Z), 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/ITQ740800120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eaebafefe212ebe7cd2d6d301b46272a8f57aa38cc5354fac59d02d76f8d00b. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/ITQ740800145.
Perchè non te la fai mettere...nel disco?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445dcd382370fdbea49e3a937ad0a90057b7f63cc9c4a7dd330336d37b95dade. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ITQ740800157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f41b057f8f5cf23556dfba6e8561b3b571447cbfaa71d6bff68f93b908e0333. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/ITQ740800131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab8e4f9ba8f33420a675be9111c0ee567e57ee396afa8436d7c7d699c17f174. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ITQ741100827.