1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x44f372770f3d97d538635f2697454e3dfedf478616467f47334f0445e15d0340. 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/1a1956af-e5eb-456b-b79a-1aa9d50f3d5b.json and https://artists.proofprofile.net/proofs/artist/1a1956af-e5eb-456b-b79a-1aa9d50f3d5b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
She'll Be Coming Around the Mountain Full
John Jacob Jingleheimer Schmidt (Instrumental)
{"copyright_id":"0xdfe822eb59bf3d4d8ddac6aa8bc36e8a01624dd7b5163902f562667b84edcc44","isrc":"GBPS82143730","name":"Old MacDonald had a Farm","registered_at":"2026-06-28T20:38:36Z","spotify_id":"20BTjkgumQIDydE0gNcr1z","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe822eb59bf3d4d8ddac6aa8bc36e8a01624dd7b5163902f562667b84edcc44. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/20BTjkgumQIDydE0gNcr1z.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/20BTjkgumQIDydE0gNcr1z.
Five Little Speckled Frogs - Instrumental
Twinkle Twinkle Little Star - Instrumental
If You're Happy and You Know It - Instrumental