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 0x305aa8d20df4b2ff01224b76ad64d60f5abd44b782f5876a28f0ddd84092233a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d98c4d10-a296-4850-85d8-405b7e92bb1e.json and https://artists.proofprofile.net/proofs/artist/d98c4d10-a296-4850-85d8-405b7e92bb1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
KULT Records Presents : Back to the Future (Part 1)
KULT Records Presents : Drama On The Dancefloor (feat. Gavin Nicholls)
Kult Records presents: Digital Generation
KULT Records Presents; Kissing The Whookiee
KULT Records Presents "Underground Beats & Hits E.P."
Kult Records Presents "Back to the Future (Ralphi Rosario Remixes)"
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 0x81ef2913d18e2b6938622695ad821525743afd65fae8346eae3e57a57876f284. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:18:00Z), 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/ITBQ61500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8658728613d7f0043fa8ba81d02bd07f8dd1273a8f5ac74e810c5731f3d0e1c5. 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/GBLV61723612.
Circuit Festival Compilation 2019 - Mixed by Pagano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd1072cfc4fda91ceba4f38b8b1601d3b787bf8cc4a0148fa07b63facb80b5b. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/GBJAJ2001856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967d2ba6043224de9b9adc0e2545a2865123f424cbf381ecfedc0d819ce954ea. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEQ692100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f7075abf3b42264d1315dc7fb154c9e17969974651a193ed46931671a49bad. 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/GBJAJ2201444.
Kult Records Presents: Back To The Future (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110a4cfae0d898178e3991cfba5bf4744e75437796925409ac36f1f0e2e0d102. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/GBJAJ2500326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2751bdf3b1316e651aca9639506b00dda166b8581dc76cdb449d8a0ab408a2. 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/GBJAJ2500325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fca6fb1fe40e5c7608e18a53a3d2a8de06c386e3a33238d4cebd999410629a. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:32:59Z), 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/GBKQU2566823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552a916c86eab0652754a287694dcec7f97a746b6b48ddc6f5ae0e3369380f92. 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/GBJAJ1400587.
Oh No You Didn't! Presents: SNAP! (Gay Secret Weapons! Gay Anthems Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a98441507b8055677b726c21df5ac8b9572e4d043417123089c9e1b0b404a9e. 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/US92E1110286.
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
Kult Records Presents: 22 Years of Kult Pride (Kult Pride Rewind)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccc822f2bb42a73255d28497ef29f0d76578e136e9192a5eb61afc5e990b6d8. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/US92E0910342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2963d000aeca38dbcfd877a069dac4d379e107b6521ed95cb419b3869ed34df4. 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/GBKQU1857398.