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 0x9611a0ceb1caacd027ba2b695712b71f0c69a92886d8d7e64a0332e45ae09189. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b436b3d3-16a4-4e4b-bd13-8bf90a5146ea.json and https://artists.proofprofile.net/proofs/artist/b436b3d3-16a4-4e4b-bd13-8bf90a5146ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Medley: Fly Me to the Moon / L.O.V.E / Can't Take My Eyes Off of You / Can't Help Falling in Love With You / La Vie En Rose
Bubblegum K.K. (extended lyrics 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 0x7cd377a5fc0a396d89c1782a0fe0c85b4e2961645fba506df2df7b6dc23c9328. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:59:37Z), 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/QZNWU2062787.
Good Little Girl // Bad Little Boy (Extended Version)
All Gummed Up Inside // All Warmed Up Inside (Extended Version)
All Gummed Up Inside // All Warmed Up Inside - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb89beee042bbc5cafb458489ce48eee855e9e0cd79a718752cfb15114a1c516. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/GBSMU9627483.
Adventure Time Theme Song (Extended Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85ee2bb60c780b3bdf052f66df19509f47764e4e8788a2d72b80b3c82421ef0. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:38:08Z), 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/QZHNC2293045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5472b6d351e9663caf733f7a6a402f311684ce2162b7a2b729125e64deec0fe5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNWU2243327.
Mixed with Comedy x Family EP (Full English Cover)
DANDADAN OP "Otonoke" (Full English Cover)
DANDADAN OP "Otonoke" - Full English Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717d8d97bd3d87674777e4744bb454f78546b5073465d136054a32b7ca63c926. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZWFT2492807.