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 0x14a6453702032544457d4c535bf7a8ffc1f76b51648e2c5d245e4dd2794de066. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34f889b9-bef3-4773-8348-234123fb62cb.json and https://artists.proofprofile.net/proofs/artist/34f889b9-bef3-4773-8348-234123fb62cb.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 0x2860442376999f7baf5850cdeabba9f65a2e526ac233b13ac9687eb45206cb04. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:04:35Z), 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/ITB841900690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3c6b874431dc0b7e7955fbf153ca33ae1e1b98c32888bdf4f5a3a0c21e1d2d. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/UKR6V2072482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854d1d658b58cd1f392688af95494d33f221b378c94c18d2cdf9a178f3afc146. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/ITB842000877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6351dac303cbf18f91d32dce3e3b306c9858d6fbed9bfd7530c3ec58fa1a0e1. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/GBKQU2276198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1342a22661e64a99fbaf4b353b2c2171214f7044d09005b49050ebdc0ac01f. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/ITB842300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd97fe7940f8fe1438a71391637756730766179fdb9eed0fef208d5869084abd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SIB152300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3e7104a379646c739876af039d809561d0329cae266119ae6056dfdb635f55. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLQ8D2300692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be1c08ccc03fa7c67ef55ba6cb2a8d5cb2c0c5e8284c5caa9320b2c4ee5f41a. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/NLQ8D2400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0d858c83b881e95e2c07daf7bd116fbef9e340ca675af818207e1ae630fa38. 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/USA2P2401569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9461e1a423a06f454ef9a87ea46ccb1d989712404091749f64c9410d65a4222. 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/USA2P2401571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fadd68af8bb0b47d966e46bf81742442d3038845ad010970a9f36d61c722e9e. 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/USA2P2401570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a3b383c230c5f09d249310ed06e34c1713c1625bf24fd0a0de990fd388adcf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2P2401568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a3ca52df71a708092fb79603eedb8c4197dae1e28e52a930bfc446295e3ea2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA2P2401573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7169262aa869089f403ee81b066e0f0a77534b8c885860baef85b06821cad87f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2P2401572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83aa98dc859defcd8d44f082e4d5297e846140e3d438750c444e7aafb5b8c675. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLQ8D2401076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10ad7694ad647f3b60356c8b64ed7091af8b9ac66ee69ba2538f5b8c67e5129. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITB842100318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d75749f664dbb16af98cf93f325e6cd75baf78669ca205e1496064bebf67e9b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITB842000402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe70fd3219f04bd94646159d2df1e8883515e536c61f2fd500fc6e1227f688d. 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/NLF712106447.
Brightness [2K20] (T78 & MOTVS Remix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc874584e2fcb2d8c9f2767ab8f61a5aea559144d7119e9654335be235ad873cf. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NLD682002344.
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