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 0x5c76f8c204910d51517e9a799d6ec702a5c765c9a5e5281f698d19324599088c. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21de15c7-8764-44eb-bf51-9a1b46cb5703.json and https://artists.proofprofile.net/proofs/artist/21de15c7-8764-44eb-bf51-9a1b46cb5703.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mana Moana (Live at Michael Fowler Centre)
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 0x12fc5e2fd58abb67cf3bc34adfbd964d201400f0f7ebd3a8c4b8f3fc26d235d2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NZPB12303527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14b91fdbade0cea6c74f0565fbadc906fea89ffc767ff777ad2040d5e0c32f4. 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/NZPB12303528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2240ba5484ed0ac62de495bff09ff27b8078d7dd4c71b1c1b022fd4a5ca2037d. 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/NZPB12303529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d457ddf00af9687972c2efcd5ae5001e20181606f94da2d54a89884c788faa7. 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/NZPB12303530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a31cf89bf74a56f7d2db9b1fe949fd45ea8621b45bd620625187f5c99cc7dff. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NZPB12303531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73934135df5f577c942fa0a59ea91e286ae63a2b4fbb5ab57e66fbe57d1dde3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NZPB12303532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85b2cd578b7776bcb165d86859e0922ef1f037e900964a3c7ca1bc6ec33b979. 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/NZPB12303533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60ec01bd04115382bdfdcc4238a2024f651e54e587601756b061c31df9792c7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NZPB12303534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1694eab9099e336f64db929863bc6e57bad4a44b35efcebe2c2bd8d04e33e0f. 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/NZPB12303535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38074c803989d6d2b6879adf04d7753d3059a920907c962610a548698506b0ab. 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/NZPB12303536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c7970c1f7a2b3fc6db299a6d60a7a3c1144d0a8f090bc07126eb22a52fa768. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/NZPB12500608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe458117c5494a29934ffdca45f6f960994b33c59e8157ba27c886f2ea2db18b7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NZPB12502469.