thumb|Gisbert Haefs, German writer, translator and publisher, 2010 in Frankfurt am Main, Germany. Gisbert Haefs (born 9 January 1950) is a German writer in several genres and translator. He has writte
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 0xdd55cd2a44317a62f60af5e6b4fe6268f33a0843b20a9de7e2241aeba614282e. 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/28c58b8e-7dad-47f5-9ab9-223959aec48b.json and https://artists.proofprofile.net/proofs/artist/28c58b8e-7dad-47f5-9ab9-223959aec48b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Alexander - Historischer Roman (Ungekürzt)
Hannibal - Der Roman Karthagos (Ungekürzt)
Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Kapitel 01 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
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 0xdb35688f55ae2387728cada97a5ce947161417513509306f713fd4c3e414d3dc. 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/DE1JU0006021 — a six-check JSON result.
Kapitel 04 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e81f8366e88e0b47f9defba95428cb74625ff2abd8b19091d8b4ab36d3ab250. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DE1JU0006024 — a six-check JSON result.
Kapitel 06 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ceb114e012ca3e74cf2ff0a69d8fbef5f33ab529bc4af4067443eca239bed6f. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/DE1JU0006026 — a six-check JSON result.
Kapitel 07 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f98c057c27ee40a1db40fc9a4e40af0be278a782b6902d00bc336a68f1b654e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DE1JU0006027 — a six-check JSON result.
Kapitel 08 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c74b6b3e0c752b21a3e7b57838cca18eeefc93d7ba8f4be5cf7529470cf5b5. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/DE1JU0006028 — a six-check JSON result.
Kapitel 11 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea000dc5c65fd41082e8faefa65f76af2a2e9b0a8bd5180f3c895244b2b3e78. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DE1JU0006031 — a six-check JSON result.
Kapitel 12 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec573c46667d8de94d0731934b28f50716a9b843240d99ebf76c921ee9689450. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/DE1JU0006032 — a six-check JSON result.
Kapitel 14 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2a6da8572b8b0e30de99880b50c62ce61a3fdc11ed2e7d3ca50dbd11b1e564. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DE1JU0006034 — a six-check JSON result.
Kapitel 15 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb42b6f78e196ad781bc813ad5ceb35a78442cb1e1dbea8c03428dd1c1c509c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DE1JU0006035 — a six-check JSON result.
Kapitel 18 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b890ec2dcd11a3f0d296a2e040dd85efe012a97395c836dcc81aaef0c6e470. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DE1JU0006038 — a six-check JSON result.
Kapitel 19 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad88d603f3d2b796cb9c75632c5ba34d7d36ee831d34d00345aabb523f4a6f1. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/DE1JU0006039 — a six-check JSON result.
Kapitel 28 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199d84299332ecab08025831b3024d9893c678fe2ef4dc158fdce1353b05d22f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DE1JU0006048 — a six-check JSON result.
Kapitel 29 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0df0fdf410a818e7a855849db22213a7f260b64cc17bc4e00d05f4a0c8ffb4. 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/DE1JU0006049 — a six-check JSON result.
Kapitel 31 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103184b42a4a05903fbf90f3b211f70ead4f43a035679ad785cfe0aef3e8392e. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/DE1JU0006051 — a six-check JSON result.
Kapitel 36 - Das Triumvirat, Das Triumvirat denkt, Das Triumvirat spinnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9580b49d376ea3f84709590b3dec01589449ace9496d607ce8f53426ed5942. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/DE1JU0006056 — a six-check JSON result.