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 0x7cb36afd7fccf23368b9f552870a20753c05a1d04abaa798961611014bd332bc. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12e2263f-3a51-4654-8f55-44efccf01a5f.json and https://artists.proofprofile.net/proofs/artist/12e2263f-3a51-4654-8f55-44efccf01a5f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
One Summer's Day (From "Spirited Away", Piano Version)
Kiki's Delivery Service (Main Theme, Piano Version)
Confessions in the Moonlight (From "Castle in the Sky", Piano Version)
The Wind Forest (From "My Neighbour Totoro", Piano Version)
The Wind Forest - From "My Neighbour Totoro", Piano Version
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 0xe7e9358d57e458c42400dce7170f215e04146322d93dc042681173343cf6c08e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ITD542400395.
The Road to the Valley (From "Nausicaä of the Valley of the Wind" - Piano Version)
Fantasia for NAUSICAÄ (From "Nausicaä of the Valley of the Wind" - Piano Version)
Il porco rosso (Main Theme, Piano Version)
Ponyo on the Cliff by the Sea (Main Theme, Piano Version)
Mother Sea (From "Ponyo on the Cliff by the Sea" - Piano Version)
Merry-Go-Round of Life (From "Howl's Moving Castle", Piano Version)
Merry-Go-Round of Life - From "Howl's Moving Castle", Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc247d5d03d911c546abfd3c6830a1d99c5f207995009384686189d7e3191dd48. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITD542400401.
Ashitaka and San (From "Princess Mononoke")
Il porco rosso - Main Theme, Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14a1eb1515f5e36f013dba07937355789a12e3c5fdcb811fe333f2898907c6c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ITD542400398.