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 0x64d5c224a23ae5ebb9f4d3319dbda22e7e2224b8daaa3a88af10a723b19995ee. 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/e6a26aa1-6634-45b8-a711-2bb46b493834.json and https://artists.proofprofile.net/proofs/artist/e6a26aa1-6634-45b8-a711-2bb46b493834.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 0xd70faae72df95e208197f4e3d417d3aaedc451c95974cb7083256e3ab5b192be. 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/DED622400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ba414ac7091e6ffa5e4293b22bfc140854ece10f481f8c04dc3fdade22c8a2. 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/DED622400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df624bad37984d6ecc72c612ebc14319f7b5863aa571db7cdde29acb5ddac95. 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/DED622400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7a15be1faffa7f8603ba74cdbb315d4d5799fd2c13be7d933f31a77249c7b7. 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/DED622400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b9f61220152caf3644cae3d3efbe6dbef1d201b33e146d1d52d7578b2e7201. 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/DED622400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd47a8775da713b8c3f920ea4511eb85e875dc8957a08e83468498cb6b3deab. 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/DED622400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bb25fcb5c3a008b61fb1c55321117b6c8de42ae1a8255f43f598e628b2e6e4. 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/DED622400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053c3c17c39457c2e369a38473f65500b7e4b4b8b2eb469108ec5465a0b5fb4f. 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/DED622400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a28c44b9169b8e1b6cd36533b6fb7a03f8d432f183f161ec5445363ab938e5. 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/DED622400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b98e36f2c54cec6bb26a0f3a90879cf52dd39bc46ad69ce8cc767b09cdc6a1. 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/DED622400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f9a8cec46327c5e5379664b1e86b8272c0e769ae4243a29653ab8720b7d3be. 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/DED622400021.
Help Me, I'm Spiralling - Black Box Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514c948cee038a02b75226df3464b56c70f6875cb4c5ca6ede4307669342e502. 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/DED622400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759f6644592908021f743914cb16ddf4b1a7f5f68108329e39ce84f33121df8. 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/DED622400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd47a8775da713b8c3f920ea4511eb85e875dc8957a08e83468498cb6b3deab. 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/DED622400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b98e36f2c54cec6bb26a0f3a90879cf52dd39bc46ad69ce8cc767b09cdc6a1. 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/DED622400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b9f61220152caf3644cae3d3efbe6dbef1d201b33e146d1d52d7578b2e7201. 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/DED622400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42402fe219ceebe5ea4f5e410081543456167d45b17dff7d615f9aea4cfea756. 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/UKJ7P2200114.
Literary Mind - W. H. Lung - Tom Sharkett Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9459764392544813b4463b290ff6f6295b6d8d49477b20c453fd1f72a114dac4. 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/UKJ7P2200115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b45898b32d7780de80a00cd17f1008a376052b87c398b4c0b3e2843996b1ca. 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/UKJ7P2000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0cf67731da57eb289a02249ee49ea3f09093f9f6ace7b674cdebf7357c99970. 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/UKJ7P2000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2549bc623d4549e8ad2cc1ed9915b224ef6eeecb1366c6793d376e0d12453028. 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/UKJ7P2000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bcfdb219c9e2aa02151a26bddcdd52d0acd3831221256e1183f2b359be20a42. 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/UKJ7P2000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfedad5e4506c0061b1144124e305df37f998c308aacd8daca821be78838f1e4. 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/UKJ7P2000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad912f1b1abdfa4189eedb0108d0a3d956bc62556e25edb68d2a71501f1e07a. 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/FR2X42463363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e46c4b42f1df7a518bfcafb1751f58a36fa2fcdcae5bf8307c7f3eb5400925c. 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/UKJ7P2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b8db993cd6dc3c3d1c91de8377b5e3c055601bf4dfe14d36f9bf341d627ce6. 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/UKJ7P2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc9602ad4c6569dff0560a61cbcf4619a546763055ab999796082bcd6907911. 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/UKJ7P2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3b424f6fd9be2e6b70e59c712313e2e69ebb0858963a00430fc7860512d442. 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/GBMA22099400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981d82e6f26eb5c360cbee35b990b974fcbd80d7d8150ebe8f8ae9cbbefdd0eb. 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/QZFYX2068923.