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 0xef7d424d47c2cbebe4b2e9d13507959cd2e70e21acae1d688128c163c959266a. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c933d50b-e05d-4729-b84a-c19efe1ca9ee.json and https://artists.proofprofile.net/proofs/artist/c933d50b-e05d-4729-b84a-c19efe1ca9ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Harmonic Spectrum: Music's Colorful Palette
Tranquil Rain: Music for Deep Meditation and Calm
Melodies for Baby Sleep: Night's Gentle Embrace
Gentle Embers: Cool Ambience with Warm Fire
Evening Harmonies: Binaural Sleep Symphony
Binaural Rain for Spa: Relaxing Downpour Sounds
Blaze of Baby's Dreams: Cadence of Nighttime Bliss
Dreamy Melodies for Baby Sleep: A Nighttime Tranquility Journey
Ambient Music Insights: Ethereal Work Serenade
Dog Twilight Haven: Relaxing Moments with Chill Music
Nature's Symphony: Music for Babies in the Great Outdoors
Waterfall Meditations: A Tranquil Chill Sound for Mindful Harmony
Laid-Back Ambience: Ethereal Lofi Tunes for Peaceful Tranquility
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 0xed74462f73cb893027557946ea5b263cd945bfa28fcdf59a0a63aaeb57ae7463. 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/TCJPO2194813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca3af0b00214cf6796b2730d7cb01228e4eca95de9a848ece4dc66d4e6d3373. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/TCJPO2194825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b15224237554b070cc0e699660dae44493edc8cc3ff2f5a09ef2ef96f10f30d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPO2195000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bde02d930d4f914add430de9b0eafd8564d0302a1fab6cbfcaafc04f699c35. 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/TCJPO2195012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253d818ef41058e85422b6f242bb7910d7845eadc6c5a57c195b3c0ba0567e58. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/TCJPO2195030.
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 0xc87e74e83bfc652078e972f2d599c47ff5f78cc13e0a26df44db8824f272ff3b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPU571530001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e0fb7ddad9e686dfaa78e0d56d16a40dd493a4a844d41caa0181a97571d51f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPU571530002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460bb37729e2b3941f89f926b1a01877b508769e9af75a716e25c72ac40c21c0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPU571500002.