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 0x152145fe4a4e91515442a2bdeeccb96c97b5a5d4d87537469463bd4ae83e7c41. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3c537a7-f226-4f30-ae3d-156289979d61.json and https://artists.proofprofile.net/proofs/artist/f3c537a7-f226-4f30-ae3d-156289979d61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aloha Aina, Vol. 1: Field Recordings of Hawaii
Aloha Aina, Vol. 2: Field Recordings of Hawaii
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 0x874ca5f7c29b90aca1cbab973072c5d0bdbcfe7b806edf547c1b49ec4dc6a75d. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/GBSMU7903105.
Aloha Aina, Vol. 3: Field Recordings of Hawaii
Aloha Aina, Vol. 4: Field Recordings of Hawaii
Aloha Aina, Volume 5: Field Recordings of Hawaii
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec1ced4c52c1a3a8dfefa0ba02a010e633a09b0a726e8cafb002d21901ce8b7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZC752000089.
Aloha Aina, Vol. 6: Field Recordings of Hawaii
Aloha Aina, Volume 7: Field Recordings of Hawaii
Aloha Aina, Vol. 8: Field Recordings of Hawaii
Aloha Aina, Vol. 9: Field Recordings of Hawaii
Aloha Aina, Vol, 10: Field Recordings of Hawaii
Aloha ‘Āina, Vol. 11: Field Recordings of Hawai‘i
Aloha ‘Āina, Volume 12: Field Recordings of Hawai‘i