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 0x109649a312b0229f70e16ee93f7ed043cfda4d416390e041723772ac2eb18b6e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ca1a73d-60e9-4dfb-8749-b56d2e563ca1.json and https://artists.proofprofile.net/proofs/artist/1ca1a73d-60e9-4dfb-8749-b56d2e563ca1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lost In My Mind (feat. Ashley Apollodor)
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 0x773f7a4be7e035d498ab342dfac08d5d817ea32e9b7e2c2b36b967faf7225596. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMD7U1802008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e9915ee1f3d809723bed3c9132b2b5aea83a0393824a0664358b4bc69f8e12. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES61901334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420b5f22673a11893bbdc283c046767bdcb388bf050198307e46f3e65aaf2d4e. 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/CA5KR1941427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b93ea28816de12281360899a7b418da25e359486f1f7a4374b22d6f12dcdcc. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:49:54Z), 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/GBKPL1962278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d3df05672539d6e75225a71818505759ea3da455c6eabd5bad3898d327e476. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZDA72144419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61854ec67c6b73ae4d678df64ab18723c87d8b52c1d841566abe1a10573b709a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMHK2037340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff94d3db5285d64a92642973beb2ebb133958fffa22e23770289b64f9c667850. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZMHN2058303.
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 0x90b922f4ea3fbd6561f9b77f32bf4a9463c4ed80b47dbd4bdfa616ebf10584e0. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZMHL2061677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda896078d7beb0f86a36cbef7573616fc036c9ded26aa7c09f429d5c76eef249. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZMHM2035059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c98580e2178b88016f4c25b6890890053b23f1b859dee49f8a5d56d3257356. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:39:44Z), 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/QZDA72207239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369e1250e516022e79f957cb31962c10a3acdbf713918d118822ec833396d776. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USA2P2107215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd434f1a7132fc05017c06746d27bd405a31951cdb4503efeaafccb0c923444e. 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/TCACI1555445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e84e62e777ee2245c7ab05588601b2a872f3983508d9681c2e6c28303948926. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QM42K2078341.