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 0x4ded64fba162c91fac342c444e9a1526c0fb74a4d2d92e3d25161d362816f08a. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c0d7dbf-8457-4422-85fd-0a58239e5dde.json and https://artists.proofprofile.net/proofs/artist/8c0d7dbf-8457-4422-85fd-0a58239e5dde.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 0x30f8c58cca063c14df6139d30725661ad70c1cc28ccf0aa2437ede8c5c2392ca. 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/QMHG41823002.
Climbing Up (Kaitlyn Aurelia Smith Remix) [remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f8c58cca063c14df6139d30725661ad70c1cc28ccf0aa2437ede8c5c2392ca. 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/QMHG41823002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4641f16ee00af2892dac287dbc136b5c662c1f99f68bccc0cad65078da90599c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US78L2224007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe338782519bf819c9c66b83f7fca1635e3b0db98d22f22823a0e4419254820fa. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:58:49Z), 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/US23A1594212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524d33d7e68efecbccf0c78a33ee381a76aab7bbb465c4afb65ffaae5f7f5d59. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:54:33Z), 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/US23A1594218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c16728c962759d9edab5db6edf996d36c08d9405ced8a8080817732a2a7ee7. 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/US23A1594506.
Touchtheplants Presents: Breathing Instruments
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f568f1a3d3ec948b37a72701e5a52a6182018023487b822e2be6791e73e3ba5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRIDO2011504.