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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d094bee7e66f028f967a1c1d9a1dc6367e381361240aa1c4d3e0506f4f8f357. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fffef40-2d1d-42ba-8f52-82fa9c8633fd.json and https://artists.proofprofile.net/proofs/artist/6fffef40-2d1d-42ba-8f52-82fa9c8633fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Forest is Sleeping Within the Trees - EP
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30756c28de8ea98977b139c4dbbf24a151c2a528c8ea3ddfad24cb406af1ccd. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/USA2P1547263.
When Birds Fly, the Eyes of Heaven Can Rest
Selected Percussive Works 1998 - 2001 Vol. I
Selected Percussive Works 1998 - 2001 Vol. III
Butterfly Tongues More Ancient Than Flowers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333d1e06799d04f5276d0a394bfd1ad70388fe95e18d2f2e6e3da5635971d56b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEX262401301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1904749c06ba920766385f0bdbb2805fe5225175edc30f4b87df50109f185fd. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/US23K2400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9451f2b713c4f5d52ce044c2b106511e43806b7942a32149c295f7561d9cd1. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QM6N22591196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea843623c65ec4f90ff75f28b5ecd57723e07b8a9896ebe394101928b5dfa2c. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QM6N22591197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a188a3dc689be94ee1fb2d64a66741ec614972416bc55c60a0476e7a78879eb. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM6N22591198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71c33541269a4fd89b881b079f3caea008eb1c95a4d8b91ffea13792170084f. 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/QM6N22591204.