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 0x09be686809daacdb8591a3cc1d93267c587ff11529c6138a6e3b332ebe36c807. Chain 2 (Bitcoin): anchored in block 953915 (2026-06-16T08:36:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19f762b9-803f-4dda-8a4c-253a61763de7.json and https://artists.proofprofile.net/proofs/artist/19f762b9-803f-4dda-8a4c-253a61763de7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Golden Age of Light Music: Musical Kaleidoscope - Vol. 2
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 0x459e9f6dcc402aed84068264828e6aaefeba164983547ce717cfe1fd21882fc6. 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/CH6630754003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416eeba248a76a46781cad91cbd820b4f7eb8e2cead903de7244ca5e9c30c9b5. 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/CH6630754017.
The Golden Age of Light Music: Globetrotting
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a31a4894ac27bc831bf9df0eae49ebfe61646ac13bdd4dde441e9f312569ca5. 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/CH6630754106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5201103d44c5ec4ea5b73d7371239c07f0e181ca7edb5d7a2fbbc1973c1973. 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/CH6630754115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2c0d95143c13f3ecce2cfc24647533ea11eed7e595bbb7ee2e2b78d9e0be00. 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/CH6630754116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6088ade526eface797705fb177c9a1c97f91c0049c5bbecbdbfcb4b6f3d91fc5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA561336511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ab129a9c34b30565affef1d63f31313bc9f162d3fe6969e935881f60d13da4. 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/USA561336515.
The Golden Age of Light Music: A Second A-Z of Light Music
Club Tropicana: 25 Classic Summer Hits, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3dda1be6664996ebee347769486694b46fdfd1fe627db36e661fe73160015f3. 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/USV291348905.
The Essential Latin American Composers Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c35c4d965f9f692b6d88d38101ed8e6573605dde024f511dd2fb2c224e6cef4. 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/USX760812313.
Suite populaire brésilienne, W020: I. Mazurka-Chôro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad41ae1c67815a34805ada2823df67d5d140f6f0d12998362c7490e5380ceff. 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/USZDG0600719.
Suite populaire brésilienne, W020: II. Schottish-Chôro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b89d7f135b0f7c9409d7086cc7ff5d670bed94840e4b8aca3db7853cdf34e5. 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/USZDG0600720.
Suite populaire brésilienne, W020: V. Chorinho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7725eb06ce64a8bcc8acfe7c9be92bcc72e9066b9a0ff821f0ba1ec204b79dc9. 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/USZDG0600723.
CINEMA CLASSICS 2011 VOL.5/THE IRON LADY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a596086b557aa4ed88d294171a2f232632c6083d4ddb6e2664af078f020f9f. 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/USESK1331173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd7168c5400d8c41358e004ba68dcbc17f9a6b29f3449b540f1f18317e08991. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USESK1331174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588ed673e521de63d45e9192ff654642518f4308084a4572e3988e286d8cae3e. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/USESK1331182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfafea044811129ce2eb22fcf4c68b41c75390d5ddf72eb6e6e5e34074d5df14. 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/USESK1331183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea9e530cf9ce61ebbacadc8d73623bb2f82d48166924885ede572039ed8e8d9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USESK1331192.
Tropicana (2021 Remaster from the Original Somerset Tapes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29611dd380f191275d02ba90cf3eddf400c786d73aae8892fcbe3f72596f0893. 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/QMVRR2300622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1446f9bb14f9167e2e363d3439650bb8fe14f75042abee679454829b41a35e03. 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/QMVRR2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bffbfac442063ce13f3fcc37c78998bb7da74e6494b8534fec917b271f0e9c. 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/QMVRR2300686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0132a933ac45ff38191abb3ebcda2dc8487fbfde64298f668b6c07a59bde89. 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/GBHVK0500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d48b011b2fac02c0107d32d43cc1bcd81be63cdd57eb275c36b3ddbf51c625. 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/GBHVK0500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa9d7e37146be7e20b17970037e40bffd03717f8f7c49841e2e70bb60515746. 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/GBHVK0500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2e0d451a5d30960eaa06c6262cc42020d141e4882c59e4912d0362c0a58be0. 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/CAM460422447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362edfc133a85f34acde22905ed80a2b3f4e051d394d72be1e2a5598070c867b. 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/CAM460439758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45ce13ae6d5be01269b79668b117bb912949ae4edfbf2c10f1912f7ae9aacd3. 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/CAM460434441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77160a7a092366df6f4895948babbdd7492aed5c940eef15c533c9988d5a8f7b. 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/CAM461001225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c6c8982f40adbac078ddf345e985efefccfc3082942ebf64ba6bb53ffe2458. 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/CAM460430123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963a5f062aff54f77456b48ac8917a4f8e44fc5d5ca98c2e01fb8898648d9be0. 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/USA370965451.
Classical Pops Concert: All-Time Favorites!
CINEMA CLASSICS 2011 VOL.3/MIDNIGHT IN PARIS