1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc81486ff86a33e96e9482b5a332627b9724ee8cd7439f294bec1ed97f34bdf22. 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/fe0a3cb1-d921-4c25-9e92-92543126e26f.json and https://artists.proofprofile.net/proofs/artist/fe0a3cb1-d921-4c25-9e92-92543126e26f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Homenaje de la música de Las Cigarreras a su Hermandad
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 → block OTSBitcoinBlock must exist at that height 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 0xbc9d31e7b2cedab37b471363346f2fad3c654e88446bda6172c81360c7825bd0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GX8LE2330246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986dfc9fab1e994283ffd5ff8cf37958aec7db3ca94ae879fcff5d21c24abdd5. 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/GX8LE2372624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd92485fbd61d8f431f0b13f6303b2e3d8a1c1fc037b512e9d6e15be6cc714af. 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/GX8LE2399366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8746cf03c5e01163e2f8a953b8f691c16a94d55d68923eb28e107df814d87fd. 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/GX8LE2347255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b143ada7ba72102483e9ef158413e1fa36ca6dbc6be0dcad447f77bd59573a. 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/GX8LE2394583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22618d49d08f02bd060b6f08997e70e89189e5e5ad29d652e08adc0b1b19ef09. 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/GX8LE2393384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9449cbc32f80c590918bd05ee5a676e0616d805ed8e871fd1bb93707aec805. 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/GX8LE2330658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93493f5567f0205cb49568b8e531c7b589fbe67881e26fda5ab5cde9695b1329. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/ES5351202820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5517cf6c393be13375d18e8c6b4ab0b875dafef1d83fe9064ede5708c8763599. 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/ES5351202821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3d5c927ac08d976de99ff3272ee623815aecfa9fe88c898388d6495288850e. 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/ES5351202822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a00ca5f257b4587d6b43ed3d3ab1c1727ce33f89fcbdc66909a2f35ceae6cf1. 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/ES5351202824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b28facd5042c22fad8700c81aa6a67327f4957280bdbc9210f820dc23781b8. 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/ES5351202826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d26d256a97768a5985ef24b71095759bad8148d5295cf5cf09f06d8b22d4f2a. 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/GBSMU5573616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb51954ec80ee522e7a7e6febb397ae8eef5b07ad49c0ae99120b5d1125eef0c. 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/GBSMU5573621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b34e7cf6f99e28aa6ad9753c76d6774fa21ea52ffc724a2d214d62618e30744. 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/GBSMU5573649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89881787de66ea064d8c9706c337de1ef4bff8f23eb8777fbc64cddafa19ff2f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:51:11Z), 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/ES5352406657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704a75181501c9b9ae86285e8bf8168336b30f2e08ad5a213ee7a9647c91304e. 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/ES5352406660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d01ebabda328f38ad8f2e23b5c1065a798f9aca5f5e6819f2df5dbd67759af8. 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/ES5352406665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a28e69998f08258310db0717260c156da7452907e20a8c9347379745b4f2a7e. 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/GX5MY2396840.