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 0x619fb7ee6288eba385fefc03c56b36460827a8f10f9d71d7ca8753d45049ef09. 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/e6b428d6-1784-4819-a90e-cd1ab847d3cc.json and https://artists.proofprofile.net/proofs/artist/e6b428d6-1784-4819-a90e-cd1ab847d3cc.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 0xdbf2e576da488718817eedeed2fe9ee99cf6ba681f120ad4411042f0855f080a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USZXT2250292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d688abc13930f05fff16da2832b427738c1bbb5a0e55a81eb09f7bf8f8fcaf. 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/USZXT2250293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4343f754cbc6f2f74646ced6fe92dcac1f71432912d68d5356c3253bb35174df. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBLFP2216753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5891ba43594fa89f4fb405d4632dedb48d57f3f477ca0b1bd44d69b42402aa5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAFX2159405.
Lil Dotz x Fumez the Engineer - Plugged In
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d93995374b9bccb4ceb6606ea4a3c628dbec20fac388f6c2c7a46d1772d530. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX202177906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6737cf4bdb12abe70c343161b44a5c0af25de1b38b329eb3af3d863b210d9df0. 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/UKXN22194735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e9d80340ce7ec1264823a229081cb41f1e938adeb34908d4b9f75f009e4721. 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/UKXN21953684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcc165422c4a894d8e5bb040124bee75e260d30583d6ce14d031d47657e902e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/UKXN21924064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7621ea1b5a63ebd28403c9ec8acbf35e9c8b5daa19cac3f7f4cc2dff3e3e003. 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/GBMA21862783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96512f034d4338b84fb05b5006d31b13896bbd4f4aee51dc9957b96c5689e978. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBMA21862938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7621ea1b5a63ebd28403c9ec8acbf35e9c8b5daa19cac3f7f4cc2dff3e3e003. 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/GBMA21862783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5473c3d1442ea55bb3ab52684a108ec1c42606c59552ae603f1e266e3634abf5. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBMA21862252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda036a1e6056dafb147783d93c582972067f213ecfd0eeaa391ddcd29131bec. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBMA21807660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5b47d8bc3ba76419f57cbcdac45fe142727e544c69154ce1efe040d493c54f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZK6F2252113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96512f034d4338b84fb05b5006d31b13896bbd4f4aee51dc9957b96c5689e978. 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/GBMA21862938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b4d3156ee99aad30b39ccd18942fdd33781c1ca6b5bb0634de26091545dc87. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBARL1801591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8039e205d463f7a55579e9eca3c07953e0e756611503bfd35105145241d8c396. 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/GBARL1801592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59f6fd57df04eb0356802b3b7aed2824c765556cca43275696c84fdcd46fd58. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBARL1801593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e812c3f6268ef79f9526cfe1c284fb8dc3426d17b2f473fdfbe340eeb9954f. 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/GBARL1801594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9367d218630f8976c5d638dd116b5c4dc28bde5dfbdcd9ae8064f5d67255f061. 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/GBARL1801595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411da00e8139b01fa5aac2907d1fcc9a34e50e44306bd0fe114a44836b1f57b3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBARL1801590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21683d541da1a2c3fc6a11a9ec075cc35f76ed92201116047098d44935ae1f2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBARL1801596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65ea5fa501f628cfac3d5eac4af35a855f7293ef26047ea6be1be2e04a90f76. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBARL1801597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75e79f343e6339704e6d81a998cd2a0c411746b8fcce30f19e56de973d0769d. 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/GBARL1801598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d5c45abf1496405ec48fcc2999a06abe8e14eb6e963df98761723f4f6e1ad7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBARL1801599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18eb994f1ebb3a29b67dc937118ec05523e2e27037e05b2b648b544bd50ae13f. 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/GBARL1801600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbba70b05f13c701e141953febb2e4d3849c1e2b0c7694d4608d28da7fc39482. 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/GBARL1801601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693a2cdb66003f72685cf12d0e72c23e8c0afed122d322fcefa1142139eddd99. 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/GBARL1801602.