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 0x86696e3f30943dae6ae2321b10b85649d59c7f7a657c8e3dc43991fdb0b67c4c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83fa36c6-2402-4fec-b749-6c703b89e293.json and https://artists.proofprofile.net/proofs/artist/83fa36c6-2402-4fec-b749-6c703b89e293.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Siemano Soprano (feat. Dawid Obserwator, Epis Dym KNF)
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 0xde3384a57db364c3e28321cd6f83c718a9b05e54621fbde3801d06abc8fec49f. 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/PLF241906129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dad475a18a7be444921a96c26f61b6b254942e13d33ee7a026547f2070f1f98. 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/PLF241705316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150f882cf6a5b59c62f7fc3b5e3720ad25e230f422beabb41c58bf91ab76cb52. 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/PLF241705406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2dd352a7cb3144784344b3cd520741086c8b8f11705ea3a2e0a7c392c903ca7. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/PLF241705853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5053ab9e79ef624ab1a6bfab07d8a7eaf27a6a9b50d4cca05fbf7b0bea5db467. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/PLF241906312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde21aa3a008eb9662d533e39f2723c550e4eed37c2067ec35aacd12377a677ae. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/PL89B2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a0423f2911e1ae7e4daa22d7cafc4fe96b1376c4cca4c6962f7367df374bd9. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/PL89B2100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a51238eb3437b1b4e2f59c13747945c8c46b4d42b49afc70f08881f45da1474. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/PLR862100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1755174f80e076bd1098380a40b76ef4eb36eaa153ab108da99f3a88e06c4e6c. 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/PLR862200153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622181e5f3a4bc50de2e8d27e9f9f2995e6705ec63570d03b2a74b716be704f2. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/PLR862300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26482b7d4c05d714fc6321ef3110a31179520575e2f6ef9fc81e8636d11d631d. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/PLR862300135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6e14c21662bceeea7936cdfc4300710266073a147dfb37afe3bebf22393822. 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/PLC062377397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2278d8bd44afe463de83fe5d7b473881b654a5a938b2dae517775173c287250. 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/PLC062396704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb6cd9f0999be70a6062d66d4dbd81de34d0b7305f31ae8d703b455e7807f9a. 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/PLR862200670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622181e5f3a4bc50de2e8d27e9f9f2995e6705ec63570d03b2a74b716be704f2. 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/PLR862300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26482b7d4c05d714fc6321ef3110a31179520575e2f6ef9fc81e8636d11d631d. 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/PLR862300135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6e14c21662bceeea7936cdfc4300710266073a147dfb37afe3bebf22393822. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PLC062377397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c553146343ac0779075ac68dc4d3fb5d9fce24d9e700592f75f203d8f2bf38. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PLR862300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191bd1dfa340c7d05e6aa1f4a972b379b762e227e5995245ade92d4ae4fe036b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PLC062382237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e180f9079fc8ee004d207024dd678e4310359ee53bc9beef069c7e89eaa3ba. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PLC062400596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f6fe04fab363c86b66c3e5b3d94af917e8cf29acd4c16b4cc54942411bc196. 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/PLC062402623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c5a50658b2ed88c206dde82920353a576f828e1d7815785036917ee382395e. 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/PLC062393567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2278d8bd44afe463de83fe5d7b473881b654a5a938b2dae517775173c287250. 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/PLC062396704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b91258b2d1dfa7dd6781359003a0afc43436fae74bad875fa8964c28736b7a. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/PLC062427830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d74be591c36e4af15f73ed0baee029b884039b390998b2a0f70260d849e7eff. 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/PLC062436179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd03628fd4d4284b6b1c275b5081faaabf12156c1ee8196468f85470346b9e27. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PLF241705397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bf7e198f43c1b74c522794016138cdd0f6dbb7a543b3b59b9bb183abd1b7f4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/PLC061908108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b90633f9bc035f2dacdb57b4d275eb628a3b08673d975c91a7f45feb5ede8e6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PLC062433960.
Uliczne bajlando II (feat. Dudek P56, Bajorson, Epis Dym KNF, DJ Gondek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b59a57d167af40a5c0191cb2a843a6de7025d966fade91cf47927fc5c041811. 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/PLF241905946.