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 0xa00e62320e6ae3e9205b943961696542c76535ce98609db73da7f2700b886512. 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/4b767afb-d2e4-49fa-9f13-7849cedea777.json and https://artists.proofprofile.net/proofs/artist/4b767afb-d2e4-49fa-9f13-7849cedea777.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 0x5acee104d1a7a42d0b0fb4955445654d88e0086aedbe38542915d5d815261bb5. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GB8KE1853796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f0c838b0b6074714195fb526c3fad6c6405746e5b539b6cb2690617c3c23c4. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/GBTHC0800201.
Into the Distance (Break Remix) / Apparitions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b14e1e117d79bd999db3a5ff270ad45acc49c2b66e069c3df4915c6c53a07b5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBTHC0800249.
Long Way Out (Survival Remix) / Shadows of the Past
Decay (Om Unit Remix) / Just Like You (Fracture's Astrophonica Remix)
Just Like You (Ulrich Schnauss Ethereal 77 Remix) / Play with Fire (Naibu's Autumn Remix)
Just Like You (Ulrich Schnauss Ethereal 77 Remix) / Play with Fire (Naibu's Autumn Remix) (feat. Key)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16aa95fa268ef7c3a92681df9573dfbd3ac12c4d8e73003dcf5873d73aaa1b53. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/GBTHC0800441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4523397d1d18fcd568500c4d61ac4208e5908ee0470d112cb9274435a97760. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLCK41042849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b933329bc94e996f17b639ac88da2ec3c99281d753498eaf17a480663af720c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLCK41042851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b0a4d2d605074f4028ae2978ab55803d2916799d8db07203aab68f89e093ea. 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/GB8KE1853638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f666a0ebefd73b1072cd775344b372bf42870beb1550cd8efbe0ea01ae2d28a. 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/GB8KE1857213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51715f29a4353d63c13db74f3443422fb4d2cb19220cf1220358b36ca7d77dfe. 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/GB8KE1857218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ec5730c9c50c76cadd99da33e2282d10430a1fbf64efbf629fecca2de0ecca. 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/GB8KE1857219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e9b73f0a7cc73e07e2b8dab1eedfe88bf5d7b31a7280d947fcae09b5fd4a4a. 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/FR9W12332662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54d4f5c5fb3645f58e40cdfe9086a62e135cd9557919a1cd5f8f925951d5e4b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/FR9W12332663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8208ee0ce8fc3e5e694d649b589be4250ca597d9afdccf74f0378a323da5935. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/FR9W12332665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c660895d3c44b5e79af38a9bd2da45574208c3074732ee94c087d65984068a. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/FR9W12332666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4cef6ba370713c1c4b96f3b31109525fd7674db7ee28d2f42d01c35a9e8497. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/FR9W12332667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88596ac79c356b45435dcfbac79374bdf6a0108baff47e3d17663b434f86bf51. 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/GBCJY1800152.
Fighting For Attention - Microfunk Crew Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35adc6874868d75810103bef4e7e3815055ca08b55d39beef0f6ab880147890d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLCK41049257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1cd2dc0e9e00f50d864345d8386199e89d3191d6899242419f9da5157f0b0a. 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/NLCK41500178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29613e02239e0d9383a72f587d65e410eea7e9836057c64f0e3b721bd10856b. 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/NLCK41012084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b5d2a474de0891e23f6ed0eec90a7ef9f80d2ac80441c3bdc495ad488f5f63. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/ES8741609133.