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 0x238783935e9eb77e123a91588609d29289c8c1ae5056f47374a2031b5f10f2a9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95de2cc0-66dd-405e-82cd-e6a2c42aa4aa.json and https://artists.proofprofile.net/proofs/artist/95de2cc0-66dd-405e-82cd-e6a2c42aa4aa.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07021d1bd5a3e45b2ca04fe0541a904c1db4a5ea07023de10852558ba0693eb8. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZ5FN1801371.
Opera Medley: Musetta's Waltz/Un Bel Di/La Donna E Mobile/Sempre Libera/Martha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742dac6499fc55ce772a2f78d244f03c6211e462d7589c7bd0acae8f7c3d3517. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZ5FN1801372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4f437d3163bb32b9264236d724b18fc169e0568ad395a736288f784748eaaa. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:57:17Z), 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/QZ5FN1801379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762747ba5bfa78877adef8bf960798800b3bb27bf7c017bc9943c3a299ff00d5. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/GBWUL2184200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ec32b65b2e15e8506dc0345a4f34346788713da12a72c37da762623f6a2aad. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:18:42Z), 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/GBWUL2184206.
Bella Ciao and Other Great Italian Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dee5a658c614138e90ce8983b4f540a8ddf79ba99fbaa2adfc8be3b2ca11090. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBWUL2164859.
Soothing Sleep Vibes: Calm Tunes for the Night
Gentle Cat Vibes: Soothing Music for Cats
Serenity Flow: Peaceful Meditation Music