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 0x65f0dcda09ad0c13980d25c60318f745f2e25f9597ba1d0c85e0e850831e2a88. 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/2da81dc4-d734-44b5-81b8-0d24fe3178b9.json and https://artists.proofprofile.net/proofs/artist/2da81dc4-d734-44b5-81b8-0d24fe3178b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Open the Door, Smell the Coffee and Hear the Jazz
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 0xf0c7633fbd1e8534632e77b38caf48febb0b0788c64020a559b0de44eb1c9e12. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/GBSMU7915469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65ca11185cf6832eae18f45a6ebea71521a8f9749650c7ce450b289394a27cb. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBSMU7915470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda198f67886a287e7b9ccadf6aca28a916e43427e5da0108dde07114c4b55bb. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/GBSMU7915472.
Jazzy Vibes for the Best Coffee Shop Experience
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2761f0ac548068432782575ccec1477966ce7f586348ea9bdff669ebfd267a07. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:01:44Z), 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/GBSMU7915473.
Baristas Tapping Their Toes to Smooth Jazz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e77b78c3c476d543311b9995c798aa5de97f0160600ad3c08e429b31b569d8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBSMU7915474.
The Ultimate Weekend Coffee Shop Jazz Backdrop
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05155ce4f5732af2dc1b35b536a36c82f8777b6bcc369c6dd2dcf295b66851c7. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/GBSMU7915475.
Sipping Lattes and People Watching to Cool Jazz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666cc36bd8930e4730ccae2274f584bc9e18006d154b9c3ad78ed146c367e32e. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:05:24Z), 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/GBSMU7915476.
Upbeat Background Jazz Music for Coffee Shops
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf004d596d08bbc4b42a7df05bef7d755933cb1525eb22be0cb1972c4ce051d9b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBSMU8150640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c18c4d4f5a4c9e182d39fae7d3dd18bb24cbee579595edac65bf98ab451387. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GBSMU8150642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1992540d43a7199ec6a3049e470d947de93646805ceda8b97548a7bbc13109e6. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GBSMU8150643.
Jazzy Atmosphere for the Ultimate Coffee Shop Vibe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11aa8da01e67dd42560b1cb0f88c461a170e8a9af16868b263648d305c366288. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBSMU8150645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a365893f2ea058ece4c9aa496a0307103b3e812c90a5a88ca707b35cb16b6f1. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/GBSMU8150646.
The Best Weekend Coffee Stop Jazz Background Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ea6b40275f6e496b5c4371d788c6901dde6517c735b9451b5cd56852045c69. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/GBSMU8150647.
Sipping Cappuccino and Eating Cake to Cool Jazz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db6057de70d4037993de6884e5a1a97781c989d28517bc47ffadad0c3787087. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBSMU8150648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbcb04d73a698f055c825d4d6b785e931b04774c16393a0a38802f4e9e3be11e. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/GBSMU8150649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a23d3ceb61055947150edba152f84cda45009aa09f993a0ea44834e19b6796. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBSMU8150650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b5e2ab48c91a82825510b934a2845045b8c1b14e643e910d6d3d0a15b2730d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBSMU9586470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb259ad59fd37a2ccedb7bc58d46dfd14dd7e1ef599abfb00cfec0648f945e02. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBSMU9586472.
Skyline Coffeehouse with Golden Horizons
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7625f1905e68772c4d25ea96203b41d090861137659f114c509931e2a588db90. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CAWK52502972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd396f1a71c67b9f9d6a349b785808f9778fc28c4de40d47b63a1413e6cac72fc. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:52:38Z), 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/CAWK52503114.