Jazz Sabbath is an English jazz trio, with a fictional backstory that they are from the late sixties. The band was created by Adam Wakeman, touring keyboard and guitar player for Black Sabbath (2004–2
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 0xc35644900ad8cd6bf92219413d9c2af982eb9319a000ad92e092ec959fea3902. 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/f35ee324-f802-4f64-a00c-8b572a483298.json and https://artists.proofprofile.net/proofs/artist/f35ee324-f802-4f64-a00c-8b572a483298.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 0x32c758adfe92300cdf8756f05786820878838ab2eec93dc6da3bea8c91a6ffa5. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/UKDSW1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88589d51730da59221c69e216f3c9aa3c0d37869512baada265533e1f08c8091. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/UKDSW1900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22f475cc2375a240cf8a86902c088a051bd3080321ce0cf825785c933ab9e9c. 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/UKSDW2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd4a8037af2a54722eb6b98da09ccc446135b0ca19b47a82a3528b1c0238af2. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/UKSDW2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf106ddd8ec8085997935c2133462220a981a5258932a97c8649973c91334420a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKSDW2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b180863c458371ca447689475d46ed6307b7e2ed51d7a7b44268dae5fad279e. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/UKSDW2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139d9e606f0e3b9d1541f6e947dfd3b851623a2c541f4365aade041dfb1db3c6. 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/UKSDW2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3da70b9982061e84d81e1360ddb45fc5c495fd31c1737f42cf147b77123ff3. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/UKSDW2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22f475cc2375a240cf8a86902c088a051bd3080321ce0cf825785c933ab9e9c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UKSDW2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f3c1f7f55565dee4dd48c857dd6a1c30df54a5c96680bd85b66dade444d3fe. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/UKSDW2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bee8715de390a19dd9e3bd9be5119e4df0fcb93a0222d52e9880140434b570c. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/UKDSW2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6f2a64a676cebcb2a43be6ab75bf80bb4887157110e4a8dc1f8d1d3acdbbca. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/UKDSW2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d91ba147b3c6971af4cc810318d370d0360edd6e29ff483295b23eb9268022e. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/UKDSW2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a910839301335d144e9ba082da2d3ff956c9ac634d95aa062e2297afa54f9c. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/UKSDW2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb2bc8400b464992fd0fe347c83bda324aeefdbfcb369dff619648e0a28c34b. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/UKSDW2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa6d5b4ba59d2946be7daf11ac7ee58624b639d122e73be9dc4f46142925a21. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UKSDW2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e530110441d50fbd91e3e95a5acc83576fbf9ffdadbb86844560d354ed7026. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UKSDW2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcaa02e8f6fb330903e87b326c4f911c88cc2b5137e1529cdf9e8be9f590965d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UKSDW2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4a0108eea706b40cbdcbe06861e424713742745554690237390e7f858c212f. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/UKSDW2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2b5b0f875f88e5c7ba7e5e451b974c8d5b1e7ddb84d1f034b092a49d6b1242. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UKDSW1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e083d5eaacee23aee75a39290a2feafa94b0c71c836a221ffba19744be3a19. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/UKDSW1900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a14233f59dd0f78c4e6c348a2ac3c85f1286248b80d72067329546973e0ba7. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/UKDSW1900025.