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 0x6e509062667a8e08b3113b30ed5352f10bc7680b9098622173d1afe494dcf3fb. 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/e5f2e5b1-0254-4a34-8d5a-876e1bbe5725.json and https://artists.proofprofile.net/proofs/artist/e5f2e5b1-0254-4a34-8d5a-876e1bbe5725.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
My Heart Says Go (Studio Cast Recording)
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 0x45ca2b21e9ee927ef2a46ab9b41218417b6a2602ebe504b81f260307111c0508. 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/QMQYB2326101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900e6908ea05b420953df62ab0a826100da06f038bba9e43e6f450fc9ea809d3. 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/QMQYB2326102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16da75a9651d836a14b7c28f7789c4b1314a289ba93caad4bb440328b7966573. 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/QMQYB2326103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d3d7d3aaf4a204374f856475709a63b7c417e2b38791dafa2e0f05b816e7fd. 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/QMQYB2326104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc14884aff7910902aea06ce2ea553040fb5b09953ecc63d5a94be93d933ac1. 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/QMQYB2326105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e37dd4e34b800f3ebd7eb4cb81bbabda22750729f82a084273aea1f014df3d4. 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/QMQYB2326106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a6e07da335e1e12bf68445279108208135393286675b4059f3e003751413c3. 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/QMQYB2326109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac89d9175a56711636b349dd6792cde36adf6054781863404a9de1b095b30510. 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/QMQYB2326111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c206a93c82a5f0d8cc67425083c4be3af5f4f3fe146abd964470f74c7db428. 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/QMQYB2326112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7019ec19316074c327955a7774d9b072eb02ada34b76bbab8ef86c9b7e8b851b. 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/QMQYB2326115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e19eb354c00058abed2b1072cb5daa943404227ba32a3d8e728ed3ddd3231cd. 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/QMQYB2326117.