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 0x9d15c6eb74dfb1e1b57221e8d20364508f6397a38995783aa93fdae17ed0e699. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a81fb390-9272-44e9-8525-a0b291023181.json and https://artists.proofprofile.net/proofs/artist/a81fb390-9272-44e9-8525-a0b291023181.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Selected Mannequin Records 2014 Compilation
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 0x3d85facea3cf4398646e4f2dd3c56af9ddcf4705c338fa6e39acd8d9f9b5f3f7. 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/QMFMG1497173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc911b877a9270ca99d04a984ea69f686624714f4116afe4c60095be808342229. 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/USX9P1237867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedfe171714759cabd5697d4cf0311c50308450f46e6f89dd097539b027d64f1. 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/USX9P1237868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160103f95bde882f2ae852a1b6ce947d96fca0d60e9de36c35d9fd0bb86dd1ee. 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/USX9P1237869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bfc8d2cc0e421db36ce5436275dee8afb59a2b24cdcb06e9cae60e68753592. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USX9P1237870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cf50286fa0181400435810da11044b8aa42963a6384c4ad69b82b64b3d15d3. 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/USX9P1237873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951a51f5f7e1127dcbf839f417104824f078fb0bc9d4250c38a006dbcaff4540. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/USX9P1237874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833d23b534cbbe97f3027332456e0022e7a60f98a48925d4d907edc9aca92862. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USX9P1237876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe041a706a2b7288178418a836e99d6476acab5b8ae2a4285913b83a45ed49a44. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USX9P1237871.
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 0x601d330ab4cd1f856a9938a243b274f443d8bd0487c157eeda0c6376ccaa21b1. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USX9P1237872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa0b3792be8f1063e12734dbdc4e1509562da985c750e71246ae8663fcd0ad5. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USX9P1237875.
L'Action Minimal (In Aeternam Vale Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc40d9846bfd0c07a553175142c74d139fec7c0f290fee0c4a64cefd3471f0a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USV291440977.
Le Tombeau D'Edgar Poe (In Aeternam Vale Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed0cb1971c27196ccc482ef89ff32b826eb6af583d176f07deb0b406abd0148. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USV291440979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bcfa75e68cd368e6803dd1c76a6d8b9ab8e6e9a5df1e9c26cce78955e4dfd8. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/USV291440978.
Back Up Dos: Mexican Tecno Pop 1980-1989
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8f3a0dbe6a848348659a804888d8c006686aa50313905631b41daaf887a2a7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA2P2462418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288d8de3e237483b9e9740d7b133daac5b52197b77e7fdb842e4a3bc2a68db3e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2P2462421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdc3a04fd3b8a0598d6c43de0575670ba1b9d5cf8905436b28a007f4530cffa. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USA2P2462419.