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 0xeed87addbba9a2863bef49eae123b7c882ff2f7344877268b717b4e0156d4882. 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/7f4c4489-c6ea-43c5-81c0-dfa5aaa7c1fb.json and https://artists.proofprofile.net/proofs/artist/7f4c4489-c6ea-43c5-81c0-dfa5aaa7c1fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Půlnoční rebel (30 let – rozšířené vydání)
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 0x771850f88799e5b53f36a7c5dd8556470098f150699213e63fc3fdc247bd54b5. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/CZA232000724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11aac9ed029edd073c942ccc6a9e43dd2466628c0f1be13a1537b004c86a2810. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/CZA232000725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897d22a8b79637c1360be0fb4fa944b1461e280b73078764ba6f19eea55ad93a. 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/CZA232000728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc041821b507a62db0a5ed882007dc68000dcdfd8bca21f551a5f61227a0068d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/CZA232000729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284c00d7e994bdc52c8d166a88b702e1aca5ec96cba4cbc744b0ffd44d54713b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CZA232000730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9e198217dd18af8c4d540788e0cae33d1306cd0d06492245dcbb3b1549bdf7. 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/CZA232000733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb715f603dfeb9383df97b7e746dbcf2bd308a3b594a68fe2afa1286663b61b. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/CZA232000734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4523f8eee1e740050cebe3498c95a5441ba797aaf3edbaedd437995affa8fd07. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/CZA232000738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb645a45a4438368cb6ceb28986b10698aa968648360f34768b0987a312fdf017. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZFZ22034196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c2074e16ce40fbbdc8fb41014fefd31e1b058599c1412fd002f987622938ac. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZFZ22034198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8daa56141f774fe7c22847d24e40f6078af8b2c949772b6ec8922c6a0165a9a4. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZFZ22034199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f904ca8baba54f8bb525424093e7156e343aafa1c8e704029854b92796b3bf2. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QZFZ22034202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa64f29388ddd36cdbb0abc6510f815829e10a8059ee648d6e88a4801bf523f9. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZES51939028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2714429ef2eee16d60326786a1a8411ec43799fde097d3f14bdd6823ab97193c. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/QZES51939035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a1fa2dd748000dcbb5d0d17bafdcdc12c06e5b7cb44d382faf2201011c3e5d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CZA239300320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94f76ebc9b486235096af2cf0b38de1f1ea31d8756b6d8a5a28187c579e4b90. 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/QZDA51959850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5e11e474078d82e1be508b868cbeee14c0a301acad7a452b0b00a448566730. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/QZDA51959851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a6a1764a3f5840aed268115a72926d6a5bf977b0c2960572b434ed1851df9b. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZDA51959853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8601c2857f42b56d6f371754591f051aff5ce2d630d9fc2f790b7dca56f78318. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/QZDA51959855.