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 0x453a61c72dccc44b06ff1844df3de1e1cacb4f73de0f0254ad9bd08106ffe263. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/802aa3b5-8eb6-4714-a934-aa49cacb3027.json and https://artists.proofprofile.net/proofs/artist/802aa3b5-8eb6-4714-a934-aa49cacb3027.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musik braucht man zum Leben - Osserwinkl Trio
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 0x32bb22b16deee539e29769455106d747d421cfe1252ba0c784cb2cd23f1ca53f. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/ATG741007101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c14fe3a6b1392a9ecb11ffbeb419048ff1c864a7ddcd9fe09ca479f512f80a. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:31:55Z), 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/ATG741007108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2168b46c2a1907c6a2efb8334e14b07046c759fd0f0a5bc9a6b76e300d956005. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ATG741007109.
Zu jedem Feste wünschen wir das Beste - Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae83c1a629b264c6bd0a6f345754564a2a77578f866e1beaa9c3f1eaf6e839fb. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:37:02Z), 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/ATG741109103.
Slavko Mix - Medley / Stell dich ein in Oberkrain / Erinnerungen an Zürich / Glück im Schwarzwald / Ich möchte so gern nach Oberkrain / Mit Polka durch die Welt / Am Kamin / In den Bergen / Faschingspolka - Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939b90737c572df04722a621d47ca2c38880aeaa2c8358afae9b7a4d0254d9d4. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:42:57Z), 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/ATG741109105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e678657f3a3304ada9b0b83a9470efb67362885426f1dcde43374e66d01fc6b. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:24:19Z), 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/ATG741109107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599cfd82fcd84388ad3438a7e559c441a2e6dec0fdc03fe129020adeb7b5002d. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/ATG741212603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d2cad36b5dbdde0d4c0e27b7a41df83720992c8483cfa78c50a59b3a508152. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ATG741212611.