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 0xdbd5b60a4cf9cf4e8f33cd81dd1f3fa830c933927f6d76f66c07ef1429004dfd. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/653b6012-727c-4736-b955-ca7e7df5e766.json and https://artists.proofprofile.net/proofs/artist/653b6012-727c-4736-b955-ca7e7df5e766.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Detective Conan - Main Theme - Electric Piano
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 0x8aa6ad8789e8a2c2de75db5e8d64627c993d7a66c297807f63a9e06ad49e64e1. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:21:48Z), 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/QZGWX2111473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42a126c08d7f7de42f8f3a4efc042654f8f629886b43bf8f648e329b8588be3. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZGWX2115731.
A Tender Feeling (From "Sword Art Online")
No.1 (From "My Hero Academia") [Electric Piano]
Gurenge (From "Kimetsu no Yaiba") [Piano Rhodes]
A Tender Feeling (From "Sword Art Online") [Music Box Version]
Somewhere in My Memory (From "Home Alone")
A Cruel Angel's Thesis (From "Neon Genesis Evangelion") [Instrumental]
I Know You Are With Me (English Version)
Sweet Child O' Mine (From "Thor: Love and Thunder")