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 0xf1cf3e507454a00f75f734fe3dacb57c74cb2357f13b865c2035bda5c4b7f91c. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e4218ae-cf05-4369-a5ed-9e8478a25f71.json and https://artists.proofprofile.net/proofs/artist/5e4218ae-cf05-4369-a5ed-9e8478a25f71.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
35 cents (Original Motion Picture Soundtrack)
Reliquarium Live from Phoenix (Live mix)
EPHIGY V (Original Limited Series Soundtrack)
EPHIGY VI (Original Limited Series Soundtrack)
EPHIGY VII (Original Limited Series Soundtrack)
EPHIGY VIII (Original Limited Series Soundtrack)
EPHIGY IX (Original Limited Series Soundtrack)
EPHIGY X (Original Limited Series Soundtrack)
EPHIGY XI (Original Limited Series Soundtrack)
EPHIGY XII (Original Limited Series Soundtrack)
METRO9 (Original Motion Picture Soundtrack)
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 0x9812178ba5b4e93effa32a1b1f86690c08c0e1661b3538d9b6116c6d80cf13e8. 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/QZZ762417827.
Suspension (Original Motion Picture Soundtrack) Remastered