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 0x800486c02813782bc67ac45021464b625b3de484b681b88cc28e18014153b6dd. 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/20646239-a73a-449f-bfb2-31c84fca8a86.json and https://artists.proofprofile.net/proofs/artist/20646239-a73a-449f-bfb2-31c84fca8a86.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 0x8fbe52fb99e5e5a7260a26bd2cd86154bd77599ee74e3fd1d65504844d8de29c. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/QZNJW2465959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4b30233d3e7ed209a6bd7d7dfc6b8fad60a5bca36bbd38b44cfa5f0914c185. 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/QZNJV2450417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951a073bad7684f60a09dc5becb153277967d12e7ed8b31bd10f87cc2bbf8359. 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/QZGLS2472509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb58eb081c6b2ac393a4bf1070422e371c032cc3c1cef3913c1da9bbc9a8c9c. 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/SE62M2309754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a131e15fef143e0e7d910df2bee61ae4bc47c5e0ea3883ee32f3d09b16938c. 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/SE6A92342319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfa22c5d0188effa499922b0b11bdf02ab30e58117c67ffff625ece98ea122f. 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/SE62M2381430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b3cfa5e34c8d0e3efc5e1c48314148044050859479750a3df91f9a9e8f7a52. 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/QZNJZ2304098.
JUSIS AKA EL PUMA: la KBerna de TKMN, Vol 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c00675878724b5ffd08c66fe5f94f27b7f66c0cdd3b41b95470c54c064fe285. 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/ESA092319409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271f55f381f7cd633889ef23a25317fa01a8c13c5a8efc3d14d2ed4559ab56a9. 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/QZPLS2401791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1eb75fc98f6d9eca8981b2a0e5d30bd84f3207e5384e63338ceccf584983408. 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/QZPLS2401792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323480852be4b9a604841fddab2130a050b74f2b512f84ff5037a06f3dbec56a. 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/QZPLS2401795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c03cdd9ebf9262d78860daffca264871210fae83b5c7b3420698894bc3e372e. 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/ESA092502819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a06b485602171e6a998bddbd94bc05588e4202c69526fcd8d24612c5c68d78. 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/QZN882552599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bced4827cb700370da74a6c75082303352bf076e5ce4c558f9fbaf599eaa99. 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/QZN882525946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e717673daf6d44cb5e4202603d70a752794bfafa6eed839d9ad0ddf34155fd7. 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/QZN882440282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f00cc74a612d19457f701636f3360d5d097c2702c29428209bce1e9ad7ed9a7. 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/ESA092415030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f1a1c5a0b0eb6345c8eaec3177f12d2d7b0a769c779712846d7daa26779a69. 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/ESA092414714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a3118e947decf651da65f9e892edf539d2c6fd4e454828c3584113d6151133. 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/ESA092413901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eef0b00b22f3740fab91f403a209df7016fc87afd199fde419e59d1e4969e1a. 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/SE6SA2411714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf178b93104b3a6961f0534d06ac4e919390f8a0d87c01878cd0bc4bfcd069615. 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/QZTVM2434985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61eac68516252df074b92d2a32c9754961065a4bf87ed1aca993305645614326. 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/ESA092409180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1895b997abbb7381a198939d188c905ff850b725e4ccd33943d03b4067772e. 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/QZNJY2467454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e31ce8e36a7fb7d73323a96468c7bfeef6f851cf6015d4fe884fda7f8a8c16. 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/QZNJY2486511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a571b63ac7e95e82c84baff434a81bb4281b4f77b3ee5bbccd0aeb896995a36. 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/ESA092407746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5158f8672c955c5819194d7bbf92d46a8abfe2a2d8ba187f385055814aca668b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZWFH2387662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc73738a30547b5315d4640581c293b8cadb8b238cf0b4004af12f8a5f2750c. 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/QZES92536453.