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 0xed8fe02fb19fad462b37cd6b39f28a0399176a7f02e4842ac2855b207235c702. 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/0202034b-f1ca-4c0f-914f-d3a5a83e822d.json and https://artists.proofprofile.net/proofs/artist/0202034b-f1ca-4c0f-914f-d3a5a83e822d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x75fc82544abfc19d045320e4dedbea34a967394be875c4fa1db0dac9ae988ee2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SE4RG2186902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdb4b4e63aa565240a44fb00a61fba279ccfb516ef29fdfa44ce683f70e19f0. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/SE4RG2186903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6321a255748399a17c60aea7436ca532863fbb799782c928c511298eae75a6ae. 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/SE4RG2186905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413942a61fab5b6634c9edb71133ebedf80e9779d16bd9f516fe897cf25ed8ef. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/SE4RG2186906.
Nocturnal Sleep Journey: A Chilled-Out Nature Insects Sound
Soothing Harmonies: Calming Ambient for Pure Relaxation
Focus Serenade: Binaural Harmony with Nature's Sounds
Nature's Nighttime Chorus: Birds and Bugs Symphony
Harmonic Nature's Finale: Tranquil Melodies Amongst Stars
Crickets and Insects Lull Nature to Sleep
Harmonic Slumber: Music Amidst Ocean Ripples
Focused Fire Melodies: Music for Studying
Riverine Study Melodies: Focused Studying by the Gentle Stream
Calm Harmony: Raindrop Melodies in the Cat Lounge
Waterfall Serenade: Soothing Cascades of Sound
Nature's Binaural Calm: Relaxing Rain and Birds