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 0x62b6f941aa7882a80f657e9d54289da10f06b57ac75d442797321f56755c4c61. 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/206c3efb-feeb-420d-9c39-edb7260d58c7.json and https://artists.proofprofile.net/proofs/artist/206c3efb-feeb-420d-9c39-edb7260d58c7.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 0xe9d900b69e64839fb8e51cc7493f9734a67065be75b0f40d86ffc4451f0e0109. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:41:02Z), 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/QZZ662311788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a1f38244b1377d246bfee87a7eb17c484d17a89e3f9fe61800a52e849475be. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZZ662314522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a073790121c65c11298962649deaa99df206a229d4daade7f8a441efc7884b5. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/QZZ662321655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a5bf7122a3c975b98c71d66cbdfd331da51f95644cf03cfcba4104ff4fd857. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZZ662323438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db2e6d41e591038ff7cc0d82b55a4c33e1d5e22d675150e0a2ed95f1aa47102. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZZ662334765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee76eca2fa6e8d457b80781d116226906a212500b77f129c2a1ecb07f48eac8. 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/QZZ662339251.
Astronaut In The Ocean ( Space Odyssey Pt.4 )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bf95713329be2f9b6fc1b6fe27b3771b7ffc8aa25a51fa49134c73cc0a5287. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:39:57Z), 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/QZZ662349686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e35d1938e592106863f808a55d93e970e142d9dac32e99a32d1e7d223e75d5. 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/QZZ662363659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba01832c6e1ed196fe51149e459537b7c0ca015216dbbd2551904f969dadd635. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:51:44Z), 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/QZZ662416858.
Project Hail Mary ( Space Odyssey Pt.7 )