thumb|Example of concept design workflow (blue) followed by 3D modeling (red). Reference and inspiration for 3D modeling is a common use of concept art. Concept art is a form of visual art used to con
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 0x962b4e2da2e8c2bd7cb341e8abf2ff676fb5274b82422f5715ad0217e06cd14b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4350bc8f-330c-4a5a-8aa5-0c18b8015cd2.json and https://artists.proofprofile.net/proofs/artist/4350bc8f-330c-4a5a-8aa5-0c18b8015cd2.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 0xf672525875f1e2cf7693c3f537243fac41ab49445fb8f6a0466076d2b46131e6. 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/NLE801400625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0633948c93e266d2cc444de38b135f05b441fed852992579b83de549dab57bfa. 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/NLS761400178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0399f0d03e600fa1cc01f42792df8bbf69b31c87ff94d9c3857304abdb48d4. 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/NLE801500027.
Where My Heart Matches The Beat - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcca71632917346d95244a68ea4f6e473997eb6778b42f403d14f72c8739993. 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/NLE801400567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18258f666fd2d87b974074e4718c6a416ac405890cc051ba951b2e94d94ef5f3. 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/NLS761400299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1303cb08ab107e9ba2c456ef34bdb7e2948df61dfb20db36531af48dfdaee6ab. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/NLH2L1700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ccbea2bbf84ec8181e390154e9e062c0c12c72033a650e7540db2f278c8a82. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:19:49Z), 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/NLE801700222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6237739f939ddcca9220a57126cc7c96907d014393570ea8d6ec07d989dacaf. 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/DEAR41718607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71e0681133365edcb8e1eca6045b048bacaa7535606f1141f555126a5426aa9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLE801800162.
The Austrian Movement (Hyperbeat Anthem 2018)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b9ea755050916da2028f928c37ea07f85e488b975af543532b81b97290919e. 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/NLE802000118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb032ca4e5c95f8e5289e7e0d898062662a66479673e7736288dae3dcdf183cd7. 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/NLE802100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc085c9fea4d57dc8b759051203f9dbd404650d5e1e9c537cbe737724e5dc84db. 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/NLE802400196.
Masters Of Hardcore Chapter XL - Tournament Of Tyrants
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6237739f939ddcca9220a57126cc7c96907d014393570ea8d6ec07d989dacaf. 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/DEAR41718607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de2cbfd006f0b80c8c89529d1e35c3c763b5b10489a343fc973467bd9e6dd19. 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/BEB681700413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de2cbfd006f0b80c8c89529d1e35c3c763b5b10489a343fc973467bd9e6dd19. 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/BEB681700413.