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 0x6155de1489ea5d10b15c0b2c25b4a3b518bf0c03454346ee134438d9c42ab00b. 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/363d55af-b4a3-4745-be9f-c91059fb43a9.json and https://artists.proofprofile.net/proofs/artist/363d55af-b4a3-4745-be9f-c91059fb43a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
De Fanfare Van Honger En Dorst (Live 2008)
We Weten Niets Van De Soldaat (Live 2008)
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 0xd244ae238e1ccf80948744137efaa4707b8accdc7e7fe5e71a7e36286355d5e1. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/NLFY50800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f18c55ae7ebe6f4ad9ae9ad9e5230915d62ef4673d835d2c19d1a849830bc68. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NLFY50800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838462fda3e44b50dffc348d2406f2ed6af55041f2fba95db2252de1fafb448e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:30:36Z), 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/NLFY50800013.
De Fanfare Van Honger En Dorst - Live 2008
We Weten Niets Van De Soldaat - Live 2008
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc204ece61934d296aa95e68761887debdc4d3856e6f04ad8a43cf125b421e8f9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLFY50800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3471b5cc830476d1b07b3e8b4e48cdb5fc75b9d71f06b0bbc529f6b3100e8871. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLH271600006.