Patrick Jørgensen (born 31 May 1991) is a Danish épée fencer, individual bronze medallist at the 2015 World Fencing Championships. Ranked No.102 before the competition, Jørgensen created a surprise b
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 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 0x6cdf5d08d8f5d45ee760d5559db9a9884f778519c0e741bdc7293bc43503fc15. 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/14edd2b1-5f74-4fb0-85da-d2389a4d1a2e.json and https://artists.proofprofile.net/proofs/artist/14edd2b1-5f74-4fb0-85da-d2389a4d1a2e.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 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 0xfce48ccb89d523212a73b8de071a34592a43a482088710f1f32a4cd27dc83dc8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NOAJR1500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ac3acee3784809c082beb3e9dbe07c951473ddcbc2ef22013cf8f37acfca20. 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/NOSJ21704023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc68efc64d38cebe2fd20909746765cfae83e3932fc6fd345dfb982ed843572. 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/NOSJ21705033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645c115dde76f4df1b6c6a01e90c4442a791f9e2b1e2644e206f66a663bd6a3f. 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/NOSJ21710083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea09e0faeb18382d11ec7ea9147efb9a59caefc8564532ebee4e34296e35cb7. 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/NOSJ21711093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd128e18fd33bf46315c50571ad9064a5839d8bb43c34aacd7a470ebb2a6b489d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:26:12Z), 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/NOSJ22501010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8148f95d764c89e3960f10d77d95b2fd70e0e3a88652342f3afc5a6a32e741b0. 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/NOSJ22401020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e32369f53cfcb2474cd5174b3552a87d941b185cfde9e5c412465b1323cb2e5. 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/NOSJ22502020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cfebb9d85f235235d7ee32481af009bc099812c4f53279308d387b41286f6a. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/NOSJ22504040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e204249cb9edd183f2ff4f5121a08426106a037e47cb1609830fd670b31ac23. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/NOSJ22505050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8992650fc3df48e1ce38f8754028a011218a3006a0eb8244bc3cda8eb6e7ba. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/NOSJ22506060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65946e2832a10e646418c2fed05eb7a4a3330edc1a254460aed282bfcb6ca2bd. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/NOSJ22507070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1924e6c2e42a9ff0f48d11e6831da0b5171734fca71c5bf814b0fb7caade10e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/NOSJ22508080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978a696d7b2c2582a43e19cacb6f35635ccd81a9bb4417dfbcd02e5770da4d7e. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/NOSJ22509090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a2bc866d50af0bd8e32c1c8c4ed145d0a23d0b147c570b014ddb83cd6008ce. 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/QZTBA2414597.