thumb|Dem Deutschen Volke (), the dedication on the Reichstag building in Berlin The German noun Volk () translates to people, both uncountable in the sense of people as in a crowd, and countable (p
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 0x3df18eaab32bee0a8708d4fc7bd45cfdbb7dc831a57c56280d940f4cbb03e923. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e2fc693-6195-4446-93d0-39a6d3680f93.json and https://artists.proofprofile.net/proofs/artist/4e2fc693-6195-4446-93d0-39a6d3680f93.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 0xeb2b50bb7bb147014dff6e505b05fa098e0c24c6a331e808eec367cb5c077b8e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:41:16Z), 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/QZK6K2480999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa48a707bd502f7df2440179445a57b25ce7b0c14a1068b6c1c7c6cbac5b1e63. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZTBB2401288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47604070ab6d421717b7d40b23c1a6f34118d494943ed7ceae19e02aab53bdb. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZZ762430668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ece3f72e1152bd7ec4f15bf30f72d1b20be35ab28d9674a14e97b73cecb39c0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZZ7U2534448.