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 0x260c173f528bc0142931dd34a2e042cf59ed485008a8fe18480149ea46fa2dd4. 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/15d86abd-8fbc-4d1f-9986-c76af20aa886.json and https://artists.proofprofile.net/proofs/artist/15d86abd-8fbc-4d1f-9986-c76af20aa886.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Bewahrer der Zeit [Ek'Thal-Zyklus, Teil 2 (Ungekürzt)]
Erbe des Imperiums [Markan-Saga, Teil 1 (Ungekürzt)]
Die Rebellen des Imperiums [Markan-Saga, Teil 2 (Ungekürzt)]
Der Leviathan [Ek'Thal-Zyklus, Teil 1 (Ungekürzt)]
Der Rekrut [Multiversum Zyklus, Teil 1 (Ungekürzt)]
Das neue Imperium [Markan-Saga, Teil 4 (Ungekürzt)]
Kampf um das Imperium [Markan-Saga, Teil 3 (Ungekürzt)]
Mission Triangulum [Multiversum Zyklus, Teil 2 (Ungekürzt)]
Sezession [Ein Gregory A. Duncan Fall, Teil 2 (Ungekürzt)]
Hüter des Universums [Multiversum Zyklus, Teil 3 (Ungekürzt)]
Die Exodus Sphäre [Multiversum Zyklus, Teil 4 (Ungekürzt)]
Im Vortex der Zeit [Multiversum Zyklus, Teil 6 (Ungekürzt)]
Megaversum [Multiversum Zyklus, Teil 5 (Ungekürzt)]
Schatten der Vergangenheit [Mercenary Chronicles, Teil 3 (Ungekürzt)]
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 0x75f5e16cd41be421e475bbf52ca015715fdbc0750cf2f768f3dff83d60c20804. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DEXO52479641 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7794ea500550901b3b5c7721745ed821be03584ba21a4cf2469e7886ea18e0. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/DEXO52479649 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6dc584b7a1cb75475d6f1f5a0ff023195d6d77b8818b13c5560c7dfa3bc279. 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/DEXO52479650 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd3af71f0352fda6e1553d3cc6d49b1574ca4f6b95e0e174698275246cdf46b. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/DEXO52479652 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec6b358b1557fb9e4591d15ecb964b91bb2b3a3233aecb791ea6f5529458395. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEXO52479653 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc139a5708cf39d620721c291a9f03f478ac069db6c8dd17304ca0920b01dde0d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/DEXO52479654 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d514a7681ab54675fd6b9aa462552d1c58c5ed3690dd41b31a83cebbfc8813a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/DEXO52479655 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a3f5eae0fad5c7a1980d4b5c3403655eb3005034af8586afc6556c18d905e7. 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/DEXO52479656 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eddd6da1c7fb4b8ed083bd0c0d7887e3ab2d0cf52ed81dde17ad9853fff4c65. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/DEXO52479657 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a196cd2d267912134bf85f7c525025707cf794bcbd0a3c0ad6c8bcbeb2330c5. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/DEXO52479658 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7492a5a302a49d4b755d1d8bd95a5fa71cc1ecb2cd0e8fa391664c8941a6f906. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/DEXO52479660 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9eda9b78087e2e698d9b187e4800bc92434fd6706abf14392e49c96684a48b2. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEXO52479661 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91102ab41f5957e346da2e52382e9973e87f676b8599b94e041f7973e540898b. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/DEXO52479664 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cff45cd3ef97fe1f8caedff3050cfd96b4581fa3fe053fdfb6df5c8934a92a. 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/DEXO52479666 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f866d152f751ed7134f02a92646c2d0f17f75201d218519bedf6c5ba7510fcc. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO52479669 — a six-check JSON result.
Todfreunde [Ein Gregory A. Duncan Fall, Teil 1 (Ungekürzt)]
Der Fund [Die Hegemonie von Krayt, Teil 1 (Ungekürzt)]
Kampf um Sol [Die Hegemonie von Krayt, Teil 2 (Ungekürzt)]
Der Ewige Wächter [Die Hegemonie von Krayt, Teil 3 (Ungekürzt)]
Das System [Die kalten Sonnen, Teil 1 (Ungekürzt)]
Die kalten Sonnen, Teil 2: Die Waffe (Ungekürzt)
Mercenary Chronicles, Teil 1: Im Dienst der Garde (Ungekürzt)
Der Krieg [Die kalten Sonnen, Teil 3 (Ungekürzt)]
Planet der Gesetzlosen [Mercenary Chronicles, Teil 2 (Ungekürzt)]
Das Erbe der Ersten [Die Hegemonie von Krayt, Teil 4 (Ungekürzt)]
Der Arulanische Zirkel [Die Hegemonie von Krayt, Teil 5 (Ungekürzt)]
Bastion der Maschinen [Die Hegemonie von Krayt, Teil 6 (Ungekürzt)]
Die Anomalie [Die dunkle Ebene, Teil 1 (Ungekürzt)]
Das Inferno Protokoll [Die dunkle Ebene, Teil 2 (Ungekürzt)]