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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67a3eb2797a4501a946d28d1522a094136756080421290aaf9f03e471bf07c9. 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/86005a80-de9a-4025-a354-f5b7fe4fbcb5.json and https://artists.proofprofile.net/proofs/artist/86005a80-de9a-4025-a354-f5b7fe4fbcb5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Das große Kinoabenteuer der Freunde (Hörspiel zum Kinofilm)
Kapitel 2 - Das große Kinoabenteuer der Freunde (Hörspiel zum Kinofilm)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02de122049e61443a33a88ea337c14e95219df7ddc8685771edb2bdca099f15. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/DEXO32316095.
Kapitel 3 - Das große Kinoabenteuer der Freunde (Hörspiel zum Kinofilm)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4419591b9f2354f42cb0ac87f2249ca25760ca180a9fe8da0943ee9217c8f4. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/DEXO32316096.
Kapitel 4 - Das große Kinoabenteuer der Freunde (Hörspiel zum Kinofilm)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b169103441ff653d6f5896cf25f801781fe04c4013b38cbdf07ddf87e199b4. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/DEXO32316097.
Kapitel 5 - Das große Kinoabenteuer der Freunde (Hörspiel zum Kinofilm)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd02daf67a8ab98ba7baefd7e86a69965c6b3bafecb0c8a412686403aafe01e4. 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/DEXO32316098.
Kapitel 6 - Das große Kinoabenteuer der Freunde (Hörspiel zum Kinofilm)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c4c5b6399e0e39c89bffe0b2fd52d5d13c25504f5e39bfe4687720d9b1d6f8. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEXO32316099.
Kapitel 9 - Das große Kinoabenteuer der Freunde (Hörspiel zum Kinofilm)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cc7f279b23dfbcdeaf76cb4fc09ef8905cdaba484d9bddd4076a2343cc90f8. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/DEXO32316102.
Kapitel 10 - Das große Kinoabenteuer der Freunde (Hörspiel zum Kinofilm)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9922fbd5a33169d09e22a882feeb573300026cc8e0860d1ac6fc0214f57e4b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEXO32316103.
Kapitel 15 - Das große Kinoabenteuer der Freunde (Hörspiel zum Kinofilm)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43cd12070cc442b3bc93b76c35642db517394ecbf35abe3ffe8302d209ac726. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEXO32316108.
Kapitel 16 - Das große Kinoabenteuer der Freunde (Hörspiel zum Kinofilm)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f01fdf4f85a2f6589594bdb70e0a1ac05a7460717c7d09f3b8f38dbb022bb6. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/DEXO32316109.
Eine schöne Schweinerei (Hörspiel zum Kinofilm)
Kapitel 1 - Eine schöne Schweinerei (Hörspiel zum Kinofilm)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8244475bf6fcaed4dd079d8c8c83a43bd8095352b9f968f60a5eac8fbfa6b0ee. 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/DEXO32316035.
Eine schöne Schweinerei (Hörspiel zum Film)