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 0x9eab0cb94c69dcbb5bf9e84a8284ac888c256945f9f7a21a53e81556f230e175. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc95dc43-9acd-4080-988c-760e78df325e.json and https://artists.proofprofile.net/proofs/artist/cc95dc43-9acd-4080-988c-760e78df325e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Politik Basiswissen für Einsteiger: Schritt für Schritt das politische System Deutschlands verstehen - Wie Sie als Wähler schnell mitreden, gezielt handeln und Zusammenhänge erkennen
Kapitel 1 & Kapitel 2 & Kapitel 3.1 - Politik Basiswissen für Einsteiger: Schritt für Schritt das politische System Deutschlands verstehen - Wie Sie als Wähler schnell mitreden, gezielt handeln und Zusammenhänge erkennen
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 0x08e1e1667543cd18dcc2a38bc8f97551f2076b8fbea657ce1bf3bcc8a415121b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEXR11181490.