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 0x84b0a658b66bdf5ff21af5306c3cf905d1fe25380c4ebbcf365e665744283056. 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/dbd5d0f7-ec39-4292-b368-a2fac93df7d6.json and https://artists.proofprofile.net/proofs/artist/dbd5d0f7-ec39-4292-b368-a2fac93df7d6.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 0xb9c2add1c1d530b529d585fd6d95446b2319628385a5a8a7a368a9fde2b1dec3. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:56:31Z), 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/DEM099900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88415d70ae9a293e30fc85cbfdf85c551d9109bb1af1da3ee721fef9eca116ad. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DEM090400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1afda61d29d8934a0d44f1fbfff80225d3731865a4745da4e0fb64c52475070a. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:22:00Z), 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/DEM099900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfb44e3b400adc1a226f0497cf11dd4618e78dae4bdf0d02bd2352a32d91b28. 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/DEM099900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e3a3b6f519ba7aa634710983bbe4a773c6dc5e4c865c59f8b011db70dff6e6. 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/DEM090300135.
Tides - Ripperton Mix, Till the End (Panoptikum Instrumental Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b452e25dcb771300751c2e584729c2b377935c726bd40e87e71ba3b4532ebc. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEM092200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7538d73557805d3245c0ab543bab8c57e1c478887952e8e1e33a270bb4bfa05. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEM091500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cf19c06246d3cf46a7b7c7492244d6a69c9e590fc2c1a93e0bf255cf78148e. 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/DEM099900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc642070f8f3cf487a5f8c04db9b47d18530ed348b4a627ab2b7d2df5c6a16782. 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/US38Y2417073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5893106e49608c6823ef8d0d1701497f2e1b087b65f65823865ee6253153256. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEM099900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb842a0d9b506836bb7197f22e941ceebbd9d3e009889ac1045ae0deedc8ba211. 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/DEM090500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dee35dcf2b477f9563dd11ddaa48c9c0cc4c15461bb7e84b70f866baed94daf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEM090700094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dce6c288b313cad09f15806ea8cd71f01ceabb4295b918d5410384b9b17bb34. 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/DEM090400114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909c1d6db512b7689108687c6ad457d91fca6dcb09c161948f855dd596a922f3. 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/DEBL60504148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33fc383e552d4b579a547fe9355cb018da98830dd7b27a957c037c19a1d10e72. 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/DEM091400001.
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 0x67435888c018879499f2d0272ae160e807b73252ac184144fd7acab7e86eeecd. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/GBKQU2365321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6544d6733c923f02a88a6538a87a8056fda0e9b32bc1465a399d2bebe87895. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEM091800152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba34d0fc251fa84f0777c577a69490d269404e20277192f562b5968d8b45b32a. 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/DEM090300183.