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 0x514a2ece2ed2621b0db48b714707466366c68a128ec480d1aa6cee705949560f. 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/fb43562c-cfa9-4f79-baeb-85c71f523651.json and https://artists.proofprofile.net/proofs/artist/fb43562c-cfa9-4f79-baeb-85c71f523651.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 0x7c14af5ca5d979a115874db3e0c7f5b6fb68f7fa724ecca9fbd7eb294254dafd. 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/DEUM70808504.
Schönes Mädchen kann dich nicht weinen sehn
Für den Sternenhimmel hat es nie gereicht
Ohne dich (halt ichs nur mit Tränen aus)
Wenn Susanna heimlich weint (A Cappella Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8d6620e30fe3d96751b11eb0a4bd4c611c50c7111172c1c91b13e70a61e7f6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLG6W1500010.
Ik ben verliefd (je bent een hartendief)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd0bac83dea4b988cc18ab7a17e3e2a57469ef57721a2015d82a9f376bc8dd8. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:30:30Z), 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/NLG6W1800020.
Ich will ohne dich nicht nach Hause geh'n