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 0xc3d3f23cb11ef9e7addd59954f3024e469fc4c66c9027a9dadd400e29456afd8. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1eddbd9a-d788-4daf-8936-41ca9a0dfbe3.json and https://artists.proofprofile.net/proofs/artist/1eddbd9a-d788-4daf-8936-41ca9a0dfbe3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Signs of Life [Hardcore Breakbeat Remix] (Shredded by DJ TORTURHYTHM)
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 0x07a6ace5cdda525566047dff0fb67c66a3651caac72c4a03722cc02f795795c8. 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/CA5KR2224285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ab4c43b9bea3f8916eb9b42fb8ea7d26dd61a843f152173a749f366b1f3665. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEDU22300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b31027d1ca7e60c5608ad7654e7d3a1eeb355778b99fd85d84eeba1a41d508. Chain 2 (Bitcoin): anchored in block 958635 (2026-07-19T00:58:42Z), 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/QZWDE2441261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2a89e940052da441c61bf6cbe0c6689d9b5bd973c03d9fc045c60251dd69ad. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USA2P2503425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1644070a4afa11d8a8206d60e8eb7d6c1f4a5eea8e4bc6e43203b5f34b3ad19. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA2P2214191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752611fca4c460571fa5bc2030620a7068616c9cd81f8074ff4f416cf21c0f25. 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/GBENL2002867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752611fca4c460571fa5bc2030620a7068616c9cd81f8074ff4f416cf21c0f25. 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/GBENL2002867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a5d3c229faf1fc5729b1b801e9942974c83ad68d317920a6f8ce4913f87b33. 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/USSUB1408903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8d3eff570e793c4f25cb4f6aabb8bb2ef6adf60de4ec17fb45879b21e84725. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USSUB2246610.
Tell Me Again This Is Love - Ldr Remixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d59db92b6ac1d36f2ef544fdced26a3a129ae4ffed54802512b2d05b57ba005. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/USGWZ1710097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b51a1543a3332d0bda96df92ae6e28e69df4341fbf26f4c71aab7c2c8096455. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM6N22422346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdf71a12a9f0e9cf2814f7f30ff0d609c6ea8eaab48b36f90e4d7de3b43f605. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QM6N22422093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb60981cb67450af5091a3a27598a4aba2dd02ea92c2bd91c8797c60b001982. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLCK41067454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb89be64690bd11d8c5760cbc97d69874b2cbcbc6b745b4d7c18379be9a9f01. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CA5KR2131621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf815a3e4ba438d44605578ee136880cafe1dac4a019e92234c11dcef4ec2ff9c. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBEXH2200274.