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 0x4124cf8fe7775ce842d911cc5479f53043691d295d65bf468207ce9b7ce81ba0. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77d78e8e-6c8d-4689-ba1a-0dc5d076d8d8.json and https://artists.proofprofile.net/proofs/artist/77d78e8e-6c8d-4689-ba1a-0dc5d076d8d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nature Sound: Singing and Chirping Birds to Relax Vol. 1
Into The Forest: Peaceful Bird Songs To Feel Completely Relaxed
Feathered Yoga: Birds' Chirps for Peaceful Practice
Birdsong Meditation: Serene Nature and Chill Music
Ethereal Concentration: Nature's Influence with Birds and Owls
Symphony of Wings: Harmonic Bird Melodies for Serenity
Owl's Spa Sojourn: Unwind with Wind's Natural Harmony ASMR
Wings of Slumber: Restful Sleep with Gentle Bird Melodies
Nature's Riverside Calm: Bird Song's Relaxation Serenity
Night Relaxation: Owl and Wind for Stress Relief
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 0x55a9e93186ba6e766e5c73daba0cc113824256105d7e5c73d65cd63108836570. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZWV32323039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a86d9657b41beeb1033df24b8150ae3bf53af7ca2d2c6ff56414d6a55ede3b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZWV32323078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0316021997c66a6247fed41aec12090e1879ddd928d928a3232d5577b8a4948. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZWV32323047.
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