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 0x6813285984bc9d995f00e44f81c13c9b4de6d2f2f7da6468c91922994e4b1612. 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/dbf0ba77-047a-488a-8c86-baa7256185c3.json and https://artists.proofprofile.net/proofs/artist/dbf0ba77-047a-488a-8c86-baa7256185c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
New Age Meditation - Calm Music and Nature Sounds, Ocean Waves, Sound of Waters, Instrumental Songs, Relaxing Ambience
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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 0x7793aed37ebb457fe8f29670b7dc934faed843e9c9348c4daff1ee5fb8bf8a0f. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/ITO101976993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fdecd3e5aa305fb7126a8fa3065230af9bdaaf2af5946c976362a2fbfd44b0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ITO101976996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c0de2c81aaa2b434998276580efd332e3e42aa5d3f5ea48923af5ed87d8b3a. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/ITO101976997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1a145cdd31df29eedc5d158f29df9b9b2500a03d6bd1c10b1c54cbd1c93233. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITO101976998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd71798a8b2de2eb352812b9665af15346e39dd287b45b90f2d7f6604db1a23. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ITO101976999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61079683a4b2488d22bfaad0bb860bb15ff4b00426aa35928006f460c93251c. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ITO101977000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6165283d8e73d4b3ef25125ab55b2a200a9c826b418535b9d31535cbbb8aa99. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/ITO101977002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba243e6834607bee0f6e88daa2c4ae9de5eb12ac95aa8fefa825c35fe2f87bf2. 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/ITO101977003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c99f929e609653fe2879385549b9edee6b800d65b90a637046076041a441de9. 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/ITO101977004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6554a16f842ecb7aee549f04a5d72c79e1f117ce9cece86de76b85b41e18eaf0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITO101977005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adbdc39108e0c1273ed52f6e578e8207b8a01cdaad16304e0a4736e7790f834. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/ITO101977006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344513e4da39f0b0458f02ff2392ce8331b7579ea61c43918b7cc4099b70d605. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITO101977007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6312320cc31fbf27f22ac14a843a2817bcf9b5b1db192d449a837c3e83a824. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/ITO101977009.
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