thumbnail|Luca Giordano: The Dream of Solomon: God promises Solomon wisdom thumb|Tibetan book cover depicting Prajñāpāramitā Devi and Mañjuśrī in yab yum, late 13th century Wisdom, also known as sapi
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 0x8765df3923df9f18a838b3e3ff9db33a849b41ef63ade1f5ef529e62d867e087. 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/616df68d-f57a-4432-9c84-082774baa82d.json and https://artists.proofprofile.net/proofs/artist/616df68d-f57a-4432-9c84-082774baa82d.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 0xf6a61d67dfbf76a45e2a5920520a9c6b5cffae8f729c60c354e1ccdd2f152292. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ATN261202301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf694d55c12a4c7709cccba2ce8fce21c7dea5699faec5ca47f78fa2a11293bee. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/ATN261303702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34a7de7b568f5a70f94400645a51d760614f85bc6d66e3f606289850e628de5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ATN261303712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b55ef848e045345bf89a486e70ec59c783522b376a1a620ea81f8d55e231845. 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/ATN261505401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6fa4d3d1637f19a4cb560526dfd2793c6dae5aabef060ad1239a4f36e01a425. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ATN261505405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1642f545ef0313af36569c9701e752646232b0c042d15cc7eca3ca2926d6f87. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:42:49Z), 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/ATN261505407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2124450aeab0ddc4e80ac24af607025500bd92e38529a7ff9a9af6d8670b5303. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:38:45Z), 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/ATN261505410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0da2822c033681e775df63ab6f4e88302f8c10e1fcafcb46f28a5ec5641a9a. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/ATN261505411.