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 0x7af8264063b23f6e38eeb725946305213dd8b8e52310d1f6e1c1b4b9383bb18c. 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/fd05c8c1-ec9d-4756-909d-4aee1a227632.json and https://artists.proofprofile.net/proofs/artist/fd05c8c1-ec9d-4756-909d-4aee1a227632.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 → 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 0xc8b2144af8d07d039fc847491f2b123a12f918d7a357737a2108e9fe36bd01c5. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/NL4NL2100265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ec232eefaddf2179452b48ee72cd845e771c5458fe04855d66f9cfea5d4163. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/NL4NL2176535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4758638deaac13906921d9c86ccf39a56910411fa002431f55d1e5fd8266acd. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/NL4NL2220434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56aa375ec0ec240cfbab80ea6be0dcf281299cabd520133f4f11cee20f93ec3a. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/DEZC62323419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2425811ff5e6e00ee8752c42496832473cda8bf9b481d41bfa65f2aedff690. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:24:38Z), 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/DEZC62361640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd2deaca1522a006af825217b0c2851bbde0761e0f262163b714277e4c38efd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEZC62364673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41a4de8ce57a307b84db68ec174e7429b9fe1faf628a50b472855f221d4031e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEZC62372561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2fb6402efd13922975ef70db9fca4298b5246a707c9a7dd3d43408f74dc6d2. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DEZC62204514.
Wie weit können wir kommen? (EM Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5535033f012ee74dc9d0fc6947872f6c1e72a48755c386c9f39bc4ac23804ca3. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QM6MZ2405985.