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 0xabe255724933f61b59130af1b883400225ba1d147a41fce82c22ac9c17fb7353. 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/579bc350-336b-4573-bc1d-bc78d06fe523.json and https://artists.proofprofile.net/proofs/artist/579bc350-336b-4573-bc1d-bc78d06fe523.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Praise Jah In The Moonlight - lofi 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 0xda32315c16b498f2a90d0d02e68c90d3b36abdedb1101aad65b02a8844f5c461. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US3DF2480016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7033cc446ed5d260dd765f05759c3c1608427d94de2aa2d4d0bfe7c35a96f1a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:26:07Z), 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/US3DF2498568.
Halloweentown Theme (Lofi Reggae Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e3ed3aebac8ee759c72ecb9a0e415d425d79cefee4ebd6abdfd53a04fdc823. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USANG2407485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65aa70d8e8c927ef53c0d81469839dc4cecc697e2e7862763d128707453937a. 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/USANG2407520.
Frosty The Snowman (Lofi Reggae Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe76c216a9e3dadedb200ada9ddf016c957ddeef130281a8fe23fb97b2154cae. 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/QM3DF2410240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00d51f10654bfd48bf8fa5354fdb728b893e3c81cd24115658a281221a9fc9a. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QM3DF2410243.