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 0x998d9cc2c6bc24a24410d5c4e98b712c4ba2942aee114114826d36f718e35047. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/feab6a4f-dab9-4c14-a519-7c5b6499b445.json and https://artists.proofprofile.net/proofs/artist/feab6a4f-dab9-4c14-a519-7c5b6499b445.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chinese Meditation with Oriental Music – Soothe Your Soul, Inner Journey, Open Heart
Chinese Dreams – Oriental Music & Relaxing Sounds for Sleeping, Instrumental Asian Tracks
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 0xf61260fd2eb45c440879e8f0e84ae4103079fa9a32dd090070a0c2fcb2e6da88. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZ5CV1676836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74566b45edda00e4f55e6c360c955bfd048e6cadaafc30e131b48aa52c3ffc24. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:35:26Z), 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/QZ5CV1676837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8652f7ed6c8bcad30418226398e666b32eb2a64886a0aeeb66038ce94f0b5811. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ5CV1676838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa03d45227fa12306536d0023cb5ae97e86b62ecaf82dc968ddc7d08b2feabc. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:36:11Z), 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/QZ5CV1676839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392705df4841320895041e575b9865c4f672e47960efba40b6a41fcc40b2b837. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZ5CV1676840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30a500019718c2aac69201d71771ea7aeff04e032e34af4fbb44d126f72a1d5. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:24:03Z), 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/QZ5CV1676842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf330d7928fa827cf2bbe7af3993f40d4c5a27656da5e1431bd96dc128f2f8edd. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZ5CV1676850.