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 0x6d8dae1b178b2242332ca9cd19bc515981c048d99faf5733d903f23d99257020. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8d2c5c1-be96-4f59-9d05-5709832cbed8.json and https://artists.proofprofile.net/proofs/artist/a8d2c5c1-be96-4f59-9d05-5709832cbed8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Fragrance of Dark Coffee (From "Phoenix Wright: Ace Attorney − Trials and Tribulations")
Amarant's Theme (From "Final Fantasy IX") [Synthwave Cover]
Everything Will Be Okay (From "VA-11 HALL-A: Cyberpunk Bartender Action")
Depths of the Night (From "Chrono Trigger")
Reminiscence ~ Scars Carved by Fire (From "Phoenix Wright: Ace Attorney - Justice for All")
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 0xfe0c6bd53b9b1c0fde13962ce4a4fe6d73aa7181310f1fe28003fdbc7b4b7618. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZGWW2048228.
Refractions (From "The Walking Dead Game")
When the May Rain Comes (From "killer7")
Distant Traces of Beauty (From "Phoenix Wright: Ace Attorney: Trials and Tribulations")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2f45f62908f3bfde71116860280bd60e58a35bbf991ccf9f68bab95a2598ac. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZGWX2148582.
You've Got Me (From "VA-11 HALL-A: Cyberpunk Bartender Action")
A Loving Message (From "Resident Evil 7") [Piano Cover]
Reminiscence ~ The Bitter Taste of Truth (From "Phoenix Wright: Ace Attorney") [Piano Cover]
Reminiscence ~ The Bitter Taste of Truth (From "Phoenix Wright: Ace Attorney") - Piano Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07019bb0ba9c3d9ea514b7505adfa3faac46650ef1c2ca4ef49f6b8db98d1a0a. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZGWX2232824.
Dick Gumshoe ~ That's "Detective Gumshoe," Pal! (From "Phoenix Wright - Ace Attorney") [Electronic Cover]
Two Days Ago (From "Animal Crossing") [Piano Cover]
Night Fall (From "Metal Gear 2: Solid Snake") [Piano Cover]
Winter Wrap Up (From "My Little Pony: Friendship is Magic") [Smooth Jazz Cover]
Becoming Popular (From "My Little Pony: Friendship is Magic") [Smooth Jazz Cover]
Reminiscence ~ Curse You, Dear (From "Phoenix Wright: Ace Attorney") [Piano Cover]
Night Sky of July (From "March Comes in Like a Lion") [Piano Cover]
dreamin' little bird (From "If My Heart Had Wings") [Piano Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc2041fbbd2be30939054ccf0ef741d0e7a06562463bb22a4d4bcc1854822c1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZPJ32198617.