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 0x044963b767dee5d042766af2f4956179664924074df051f559f19bf283bd5338. 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/4b856c66-eb14-4c1e-aae1-4d90a9c45916.json and https://artists.proofprofile.net/proofs/artist/4b856c66-eb14-4c1e-aae1-4d90a9c45916.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Der Metzger kommt ins Paradies (Kriminalroman)
Walter muss weg [Frau Huber ermittelt, Band 1]
Kapitel 1 & Kapitel 2 & Kapitel 3.1 - Walter muss weg [Frau Huber ermittelt, Band 1]
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 0xd4f58e79bad60df0e4a88f55d21297701aa057d6694752ce5a0c3c534cef9515. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572795 — a six-check JSON result.
Kapitel 3.2 & Kapitel 4.1 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3730b6479f711bf503156fa1b4bc460b555fb90be4a2510f49dc9139e59f8eb. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572796 — a six-check JSON result.
Kapitel 4.2 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ae679fc1846df92cd3ba260631db5f5dbc5e2bb653b6e64dd45269a0321dd0. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572797 — a six-check JSON result.
Kapitel 4.3 & Kapitel 5.1 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f4da12e861351ff1313c44cd72796671d92cd263f4f232b9a5c597807e3c33. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572798 — a six-check JSON result.
Kapitel 5.2 & Kapitel 6.1 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53c6c701e2bdbda0a904ab8983f37d8127a4d2900765875ee7676ceebefa37a. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572799 — a six-check JSON result.
Kapitel 6.2 & Kapitel 7.1 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ab4ef831562abadb2150dd84dc74100f5959f4e8cb95553764ad0a975008ef. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572800 — a six-check JSON result.
Kapitel 7.2 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f712b000cc4159695c45fcee1446010f64356ed9eccb2abc67a6457592456bc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572801 — a six-check JSON result.
Kapitel 7.3 & Kapitel 8.1 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1a94d4f6725a72ba5268f045c150f78d9ad82d9673dcd710a5480e4fa08c7c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572802 — a six-check JSON result.
Kapitel 8.2 & Kapitel 9.1 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a065cf7464e689954d1d4e5f553cf23db358e7b74bab0eab3fd9af94feffa6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572803 — a six-check JSON result.
Kapitel 9.2 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df78beb823515479d8d83982b1c6ad46b25997bc31156b0a2416a29763c603b. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572804 — a six-check JSON result.
Kapitel 9.3 & Kapitel 10.1 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85744cdeb1096b58eabdf0c88d52cf57ee768e246da310d13c9f5dcca8aa720b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572805 — a six-check JSON result.
Kapitel 10.2 & Kapitel 11.1 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1b7446961e05cc05ce2af1817f14d464db994469de399208da83db723f5703. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572806 — a six-check JSON result.
Kapitel 11.3 & Kapitel 12.1 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab0c558d4f494b9cc9796de8321a6226fabae01239b18598937ae6860fb118d. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572808 — a six-check JSON result.
Kapitel 14.3 & Kapitel 15.1 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70f3ce44c96e99d6ab9ae292406c6be2ad2c557b288a54b75a2981a661fa298. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572812 — a six-check JSON result.
Kapitel 16.2 & Kapitel 17.1 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9df53e9a669e31ee534fe16ce479a411ade8b493ea2ce70be88a88fcfbfff8e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572814 — a six-check JSON result.
Kapitel 17.3 & Kapitel 18.1 - Walter muss weg [Frau Huber ermittelt, Band 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec86bf7c68d586c2579c7cd7665e400f960e2ff39204ef03e669bcc1a23e534. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90572816 — a six-check JSON result.
Helga räumt auf [Frau Huber ermittelt, Band 2]
Die Djurkovic und ihr Metzger (Kriminalroman)
Peter kommt später [Frau Huber ermittelt, Band 3]