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 0x1a31a43f3c7a7ff6550f21b34791cd7ba482f8d6f4b2382e412fb69a47ce8d08. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fee2485f-e672-4efe-9374-ae29ab8b5353.json and https://artists.proofprofile.net/proofs/artist/fee2485f-e672-4efe-9374-ae29ab8b5353.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Teil 1 - Folge 5: Die verräterische Spur / Die Wilddiebe
Folge 5: Die verräterische Spur / Die Wilddiebe
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 0xaf1b9f271f8f6a6fe29562aea07eb80335fef303dd8aa433ddfa69be6e39c67e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEUE12167951.
Teil 2 - Folge 5: Die verräterische Spur / Die Wilddiebe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dae82cceba1adbe2349a621c6f9d2402aa41a7b04076de7ae32566d91b0f626. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DEUE12167952.
Teil 3 - Folge 5: Die verräterische Spur / Die Wilddiebe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce7e20541f4477447919eeab49f4c8ac1ff5c8cdea2380564654af0c775472a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEUE12167953.
Teil 4 - Folge 5: Die verräterische Spur / Die Wilddiebe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46f24955521f17248dba575bbf779846c8e063fc5004def62f4d1d562f02400. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEUE12167954.
Teil 5 - Folge 5: Die verräterische Spur / Die Wilddiebe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f311f81cde0d9634b8b6e52aabbe7469092a44bdfca8cf2a2c8d7d0dcef3d14. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEUE12167955.
Teil 7 - Folge 5: Die verräterische Spur / Die Wilddiebe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1184e4fe298508f572cd1dbbad428dd50aad7dfb06d8bfd9b561c97b9d40730f. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEUE12167957.