{"copyright_id":"0xf9a8129a9a752e7eabfe04f0dde40eefc5a0db9a6dc4f932fc4b7f4c91a8f6ad","name":"Najlepszy Przekaz W Miescie","registered_at":"2026-06-12T09:24:58Z","symbol":"NIM0255420","token_address":"0x33e0c0ef8468f08cf8a3a97a81e0391c0b0b98b8","type":"artist","uuid":"c6ae00e8-ec78-442c-bb90-55e970bd42a3"}
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 0xf9a8129a9a752e7eabfe04f0dde40eefc5a0db9a6dc4f932fc4b7f4c91a8f6ad. 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/c6ae00e8-ec78-442c-bb90-55e970bd42a3.json and https://artists.proofprofile.net/proofs/artist/c6ae00e8-ec78-442c-bb90-55e970bd42a3.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 0x67a97295419b9d2aac48bb7283a035ef4eafde4bb25468f48d870ed5b24cf057. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/PLA551200308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d3f97bdd4c6e5085ceb533e88a1dce3fec58ce6248fb73da1e6126a21ca9b5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/PLA551200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bac1e804ae62596557dc0ccd37c0f74e673bb0a2edfac5b8e773c655d439ea0. 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/PLA551200310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2485d1e744f0d66d79d97c6541a377f96da4cfff461ac98ff98fdf8ae60fa9fd. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/PLA551200311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa512a2565249dd1b1bcced1f8f5aed3b5d8462635366a0485bb506159501a86f. 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/PLA551200312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d28366198787ffbcb9952b9c677346c0b032c785be212302574142488707be. 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/PLA551200313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437483a1f28232d6988d8ee918e3a5472fb92eaf2e3f9d637cb62230d831da7c. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/PLA551200314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0acc59bd43e014329d9b63cb90f64be6c945770974c90e0620e6ea4534abb7d. 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/PLA551200315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31c29ac306df8991a08508b2cbe39ce4df35b6623ff223f1c50832e7d7d19e2. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/PLA551200316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e379a82c1267fb71207e22875e774c3d5b2046da655ba47c6aad1fb7991bbb8. 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/PLA551200317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4788140643c95b5a9088917d2d7e81bbfc1ebc56dad21a1724e72f2f2a43a9bb. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/PLA551200318.
Zobacz wybierz słuchaj (feat. Alexandra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe602a705c83b1d6e2feed2e9b7e6180f485ac9e233e81483c742a909bf29cbe. 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/PLA551200319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd700b1b1c12833fef6cf97f315acf8be4f94a93a626bb034968fe60152ad858b. 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/PLA551200320.