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 0xc34bd2c912d5e25ab2978e2aad1c95fc7faf48267abf06b7678011710976091a. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73c7aca3-61a5-4e2a-9e1f-dc035f09c718.json and https://artists.proofprofile.net/proofs/artist/73c7aca3-61a5-4e2a-9e1f-dc035f09c718.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Music of Chibi Girl Vs Evil Zombie Dead
The Villain's Last Wish (Seven Hearts Stories) [Original Score], Vol. 2
Legend of the Celestials (Seven Hearts Stories) [Original Score], Vol. 2
Legend of the Celestials (Seven Hearts Stories) [Original Score], Vol. 1
Seven Hearts Stories Main Theme (Original Score)
The Era of Fatum (Seven Hearts Stories) [Original Score], Vol. 1
The Villain's Last Wish (Seven Hearts Stories) [Original Score], Vol. 1
The Era of Fatum (Seven Hearts Stories) [Original Score], Vol. 2
Mission Fortuna (Seven Hearts Stories) [Original Score], Vol. 1
The Heart of Atlantean (Seven Hearts Stories) [Original Score], Vol. 1
The Heart of Atlantean (Seven Hearts Stories) [Original Score], Vol. 2
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 0x0d83939059c87e32b0c59e92b5ddb008e56c4d8139a41a52a11ff8f9d38e873c. 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/TCAIX2475347.
Spark and Flame (Seven Hearts Stories Original Score)
Loaded Tongue (Seven Hearts Stories Original Score)
A Beautiful Decay (Seven Hearts Stories Original Score)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a8c3f17f268a5df0db4f4c818c75569cccf1505007ecf7da648bc69f807365. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:52:56Z), 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/TCAJW2553221.
Flowers in Bloom (Seven Hearts Stories Original Score)
Kitty (Seven Hearts Stories Original Score)