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 0xedae09e57a03bafa3305c4e828f2ca8d301a346db724a7bf25c96e292718d2ac. 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/9397e7ed-04e5-4b51-b628-1cd1c98d5001.json and https://artists.proofprofile.net/proofs/artist/9397e7ed-04e5-4b51-b628-1cd1c98d5001.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 0x3430f7ef6fc44dcd1dd697ff518140cc5af8055a87932cef0395beae23d913c7. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZTAT2305190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48770e4e901ba70214fdd6fa1ed167a95fd385969c2f52750e8a8de962c42206. 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/QZTAT2305191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b065bcbad2dd79f8ccf5911212c555ab10cdcc6889b28fce928730a8d443db. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZWFF2325276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa93eb5d9f9864ee780b7dd6ccc1765458650239d38d4e609a82fadc6293b33. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QZES52438730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a57abebb8bd2d1f4f4b70647520d34ed22c275bb9173d0bae3337310d6daf2. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZTB92437575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7035fc8fff4c579c6e59325f3c3c6dbd65a47277442b56a3e6aaaebf7f7203. 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/QZWFQ2473640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b065bcbad2dd79f8ccf5911212c555ab10cdcc6889b28fce928730a8d443db. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZWFF2325276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0423a485f60955a381b0f3ecb5cc3776de3921b15abec3c4e7f8338a244c118. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZWFQ2473641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1386268f2082c8acb0e7cf3e8f613d63d1169b50c5892b54c2077a9d434fbc3. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZES52438731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb476d2e7cddbe2e2b27de9176fd2ebcfbff73f4b07e8adf23339bd6245a8262f. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZWFQ2473642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9800ab7235bb9c3a3209e23cbc82ed6b56594f2911a30a68dacebd82404a3a. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZTAT2305192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7035fc8fff4c579c6e59325f3c3c6dbd65a47277442b56a3e6aaaebf7f7203. 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/QZWFQ2473640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa93eb5d9f9864ee780b7dd6ccc1765458650239d38d4e609a82fadc6293b33. 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/QZES52438730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1dd54c8ec46484402afa276dc2d632f0f1960295589ac7a77d7c7a58a572d0. 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/QZES52438732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48770e4e901ba70214fdd6fa1ed167a95fd385969c2f52750e8a8de962c42206. 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/QZTAT2305191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58aee9e3f47a4ca7a5d0cb5a9759cad9e3b8cc7740b59d9c695859204c9ef298. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZWFN2474141.
Pulse - Hexmaschine's Rhythmic Vibrations Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae1241ef41fa7a1ef4dd55f4b13c32ed17278ae7e0c0f39fff6abfd8998b437. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/QZES62562215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954c2379ac4fdf0a6cf3ba59920cafdbaa6e61e40b92906a15deb05f69fd93ef. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZES62562216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2ddbc1dff864f84f4cf52ef672f8306578ffa3b40f0df2cff201340723523d. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZES62562219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7aaa9091d207587bfaa46ceb9e461dd8e9eaacd71a949c3144b7f32f1c00598. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/QZTB42543859.
Lights Down Low (Black Light Smoke Remix)
Lights Down Low - Black Light Smoke Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc9121f03b3c6b670ca3deaea3f86861f73391b4beca47cb215edb4f6195cc1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTB82561714.