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 0x130e639a63de89eb82bc81f7be55b6e65a62a51764d074e42ee037cd60a38506. 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/37338247-ad74-478d-b23f-dacd1ac082b6.json and https://artists.proofprofile.net/proofs/artist/37338247-ad74-478d-b23f-dacd1ac082b6.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 0xa7a8d4b7d795e6e429ee4fc45bb2cdbf41b05516f188889769b946c38716a254. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/PLI360208580.
Morze Śródziemne (Przepływa przeze mnie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f35d90b1a51c8ba0c04d4f52902453598806a1275acc6c7e6690533fb93922c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/PLI360208590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253d40faf8416725d7f905dec3514a9674a74618c791bea21eaf17ad9a43a696. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/PLI360208550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11d6c63a69f25a7cc23f303a403d51fd781848e0a39afd633fbef29990854c1. 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/PLI360208630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cae532e02691692a9793258b3c772c6c6a3dea9948d84a0eb1ba1758a46c3a. 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/PLF391200030.
The Best Of Yugopolis (Maleńczuk / Kukiz / Piekarczyk / Muniek I Inni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b9863395d70f645d0b2aa871830a00cf26e72aa629a12a1d67f6dc42547b7b. 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/PLF391400319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b12da1eb04a88c7b3d6249b6df948995e4118a7853fdb37087e584f20dc6ed4. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T15:40:38Z), 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/PLF391400318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54830a9ecf25bdd6e3a64996617d99db27277e2cc45e5bc734d0cd69b6ca4d63. 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/PLF391400322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95746bbf5134f28cea53369a5dfd3b265b32c48508d20efb3ac27fd0a89b7193. 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/PLF391400321.
Gdzie Jest Nasza Miłość? - 2014 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c279ea94ca2aac270949d2eedc2e836f80d7849df25cb05aea78c762b16a6e0. 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/PLF391400323.
Ostatnia nocka ale to DRILL - Radio Edit
Ostatnia nocka ale to DRILL (Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cefdd0929381bbef5d1d88824cff8c500a4edd787f9337372cd275ecdfcf48d. 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/PLF392130122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619bef5a509c2c4f854afcc44d4600675f9dcf038952cae22a0a94a418c3b5e0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PLF392130121.