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 0x82adc35b9198e0e0ea45b792b6baba1b6e4c419510de4e9303adf76c674b31ba. 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/054849f2-4f8f-4d3e-ae7f-be42f3555462.json and https://artists.proofprofile.net/proofs/artist/054849f2-4f8f-4d3e-ae7f-be42f3555462.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Best of Both Worlds (Deluxe Edition)
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 0x655eddf76d655366a68076ebeb6598fb8eabf40ffc30159e0e66b7cd4c3b866d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QMPJE1100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0905fc284a584602201fce0fa05593f3d32aed267129567186637527c98e3c95. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMPJE1100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8421bb735c4734d2e2581755603041973a38b0e7c31eabf227d9c8b6f8761ff2. 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/QMPJE1100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2aabe96442200214a1c10ea7cf0362f2652d6037628cf034416af2bc815d34. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMPJE1100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655eddf76d655366a68076ebeb6598fb8eabf40ffc30159e0e66b7cd4c3b866d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMPJE1100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2a99ac2f208d26f04158ca0f8056f5cc767f9ab97115832dc88799804bbde6. 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/QMPJE1100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1951a41257cd7a652795d0d9fc00ab07a1dcf71601f6639b6858e7050ac70510. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:19:26Z), 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/QMPJE1100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7d192118ff0f549c8df1374860df8f31e622b866439d2d27eebb8bc7cf55d8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMB3S1400315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f02092e95f1d3e86db35112f3723ad1a9b998b263317b77b6c081aab414081. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMB3S1400322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7141aed9fad821be341ec2422dda3938c4a17aad5f595d77fd47a1acd45805a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMB3S1400325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ca7a5bc1922b28f736fb14eb28b28f03da36539311ff94fceb8a422956adba. 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/USUYG1181724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddce0af4bd4aae46a1b34290b2ab227c80b22b6e27282b84983ea179786874d. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/USUYG1200685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f2fef0391417399739c21ba0eac43eb0314451a433180fa4172e0935c657f5. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZS7J2170442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418b786c000f6315827a0361791be4a114365a508f826a1f1bd9dd11be3519ca. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USLZJ2042879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccbc07120fd9107d90fc65f768cc9d383757f7f8e77c946c4b313251040de72. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZS7J2190081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9761d1592c1536a4ea48e76ffb57643bc1077a5141bee0fe5dc26ca951bf70c7. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZS7J2184296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67fe052b767b599654074017c534073f22d976e92563b78adc7e6aa95a4b0ac. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/USUYG1146459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ca7a5bc1922b28f736fb14eb28b28f03da36539311ff94fceb8a422956adba. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USUYG1181724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4468b2ee05d6d8146511c8b31151695ed244e8a3c38eb37f9bc91ed6e92e3b1e. 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/QZS7J2182017.
Never Knew Love (Vince Lawrence House Mix)