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 0xd9bf9e55122d6b626437a9f7a479532821db979151656ee474c3b66e2811c189. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e869184-134b-471e-9419-789f7d8f91a2.json and https://artists.proofprofile.net/proofs/artist/9e869184-134b-471e-9419-789f7d8f91a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ambient Birds Sounds, Pt. 1260 - Ambient Soundscapes with Birds Sounds to Relax
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 0x2466e56f58081c740669580d97cd38c3bb5fbca092c4b056cbd63c8d9fd97443. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRX282492756.
Ambient Birds Sounds, Pt. 1261 - Ambient Soundscapes with Birds Sounds to Relax
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85dba46d4e0d4383ee9970f264e5004ea3dc3ed6202eabb3f456e0ccdf42c767. 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/FRX282492757.
Ambient Birds Sounds, Pt. 1262 - Ambient Soundscapes with Birds Sounds to Relax
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280a174cde057a270ce5879879102c8604614540c1832e15f2904c5086d3370a. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRX282492758.
Ambient Birds Sounds, Pt. 1263 - Ambient Soundscapes with Birds Sounds to Relax
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6c144fd682e249c6741eb7ab7d927e5de7c2a6a303e3e2ea57c6ecde7559fc. 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/FRX282492759.
Ambient Birds Sounds, Pt. 1264 - Ambient Soundscapes with Birds Sounds to Relax
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7d657962a1cae7587e4ddcd5769f59980fd27c3c717ba9e8473bce2f30f487. 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/FRX282492760.