1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x5eb72ff4a7f0a9654816a66b4af3ca1c1a78ff6d724f24c176e0e5db105fc718. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/751adc65-a09e-4e98-8701-3ff1e5446e31.json and https://artists.proofprofile.net/proofs/artist/751adc65-a09e-4e98-8701-3ff1e5446e31.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 → block OTSBitcoinBlock must exist at that height 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 0xef57e71fbb4fdc5f27831d72648bd179ba17f506e8419e55f7f75a74bda6f5f7. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/PLB382300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203b7ca90355be9c9986e3f0774abee0008dcff463ad137c11a0e2fda85c8168. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/PLB382300525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bb2103eddfbca9748b6b5558686c44ba1c138165dfd1551d27a634760b7dc1. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/PLB382400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb143a5d37e5ee33b12a89b0ea1bee3d8ba6fb097353e0d35540477cd0ab6d92c. 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/PLB382400440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c3e53d9cc63de79c67e3bcafb2d50c65789110a46351624698d15529dfb855. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/PLB382300442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bb2103eddfbca9748b6b5558686c44ba1c138165dfd1551d27a634760b7dc1. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/PLB382400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a295c16acdac029b323f49ac846accf6715cae5e066103f9492f00b0501476. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/PLB382300123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3778dc439642d7e11cce7f522a52bd92173584f21fa68ee459e92b207c05c509. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PLB382500626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9eeef9180691026c53b3aa33fdc9b2945a52b78efcee2147b0e8086d9076ec. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/PLB382500627.
nad ranem (krótki metraż) (feat. Dominika Płonka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc0a6c28e2b7c8c4f203ec7cb839e6304581126bd79865cb4e3498045b79ade. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PLB382500628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa301e15aff4d7d7174452ceb16b143dbf4211ed6bd8529f92bd5f5fe3acc4d26. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/PLB822300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41565c35afa1d88573584902106fc708ca17c8779d29be4d22efae645cd33f75. 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/PLB822300271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64939e0b32100eb45ce7d6c2e89babb24691abcc86afff192642cfa1de61b4a9. 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/PLB822300276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41565c35afa1d88573584902106fc708ca17c8779d29be4d22efae645cd33f75. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/PLB822300271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa301e15aff4d7d7174452ceb16b143dbf4211ed6bd8529f92bd5f5fe3acc4d26. 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/PLB822300270.