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 0x4e7f85e98dc2fc18c90fcbb8251a95bfa19c158e2cbee9b937263685e75a4aa2. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a5ccbe4-7cd5-4407-8762-b713ec6feeca.json and https://artists.proofprofile.net/proofs/artist/6a5ccbe4-7cd5-4407-8762-b713ec6feeca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ima Made Nando Mo (From "Naruto") [Japanese Vocal Version]
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 0xaea694e6c4bc27e467e4e6767d04ae47430394de49a92a15053f816b3507b430. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEY340403467.
Lacie's Melody (From "Pandora Hearts") [Musicbox]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe689b1bc2156b01dd8704c115a31784fc99698dc71d3499059a790d14f157e4d. 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/DEY340404065.
Man of the World (From "Naruto Shippuuden") [Orchestra]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d5e71b8fe1db38603b418e722f79ca6476f4b5fc04a81e148b1a379c52233e. 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/DEY340404072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea1cd2cdd34a49541be648b7c275b9c5bea60af6aad1d4b76fccfd033ff1bac. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEY340404074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0b760ea94bf689348ec77e12e96fc69081186e67f84211668899e0409298e9. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DEY340404078.
Binks No Sake (From "One Piece") [Piano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e664a081008dfcb6122d529096136b879b0e452a437a92a71a169c2ee565b3. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DEY340404110.