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 0x02675472094d5d0f29b4b3a3fc2908bf2f3a44de04cf63e530e455b207e80649. 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/6ae7c470-fbac-4270-84a8-806079c1848f.json and https://artists.proofprofile.net/proofs/artist/6ae7c470-fbac-4270-84a8-806079c1848f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Totengericht [Ein Sabine-Kaufmann-Krimi, Band 4 (Ungekürzte Lesung)]
Blutreigen [Ein Sabine-Kaufmann-Krimi, Band 5 (Ungekürzte Lesung)]
Strahlentod [Ein Sabine-Kaufmann-Krimi, Band 6 (Ungekürzte Lesung)]
Schlangengrube [Ein Sabine-Kaufmann-Krimi, Band 7 (Ungekürzte Lesung)]
Glutstrom [Ein Sabine-Kaufmann-Krimi, Band 8 (Ungekürzte Lesung)]
Totengold [Ein Sabine-Kaufmann-Krimi, Band 9 (Ungekürzte Lesung)]
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 0x1129b521f2c1ba094e5a44843781c1b0d521b037328bfe45ca262f74d11b7963. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM20879833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519ef89a89ba7decf9a5bae0b3ac1d78e3d40497dcd4cb4274bdeec2d781882b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEWM20879834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9062f7be06d53d812e680b526c67ffb480ca1e721845e285e751e7d92fe3e2cb. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEWM20879835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448fbfae05ce79dd3d80806d906df4f26dfa89eb09a6edda717dee2d463b9e18. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/DEWM20879836.
Kapitel 5.2 & Kapitel 6 & Kapitel 7.1 - Der Panther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98443b2dd4f483dccbb361f584dc0cdd9bfe8b946e86a768b91e268267d3697b. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/DEWM20879837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff60578cc97ab6697a11a07e9620c0017458261ac1bf8e9f34623873530a993. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM20879838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394ef68c7f8cb6a5622c930c3dc6df8308145c984c791bf7512611552d945fbb. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM20879839.
Kapitel 9.2 & Kapitel 10.1 - Der Panther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc333746371de18f2c149243893773667395e46c41418c47d3cdd2a5722d6eb1. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/DEWM20879840.
Kapitel 10.2 & Kapitel 11 & Kapitel 12.1 - Der Panther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a64ee51314b507479e938430c5010c0d58eefbd15e3f31c4a2fcf766ba913d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEWM20879841.
Kapitel 12.2 & Kapitel 13.1 - Der Panther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b365d4d4c90c0b5b1f39d500b49085265a82e5cd26cfe81fd046dc850b8de06. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM20879842.
Kapitel 13.2 & Kapitel 14 & Kapitel 15.1 - Der Panther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd37cf7cf6db53889e8f9fcf9d384ee80813ce9e92782cc661d2ba477a6e893. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/DEWM20879843.
Kapitel 15.2 & Kapitel 16.1 - Der Panther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b72948ec808129d99eeb4e57e10bd4d616a349c4b74d382c547aa00e3a082ab. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DEWM20879844.
Kapitel 16.2 & Kapitel 17.1 - Der Panther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac197e7b405f8c59317151888d122e2b5b18816911e91cb6f8b398f45355ac9f. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DEWM20879845.
Kapitel 17.2 & Kapitel 18.1 - Der Panther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074a901025cf3aaaf60983177950ba83eb63629e4d80fc07d82176c2849ef9ed. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/DEWM20879846.
Kapitel 18.2 & Kapitel 19.1 - Der Panther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf572ba146db3c8d4e2bc07aeea45100dc22f4f2add6460e1963a8ea06cd55d46. 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/DEWM20879847.
Kapitel 19.2 & Kapitel 20.1 - Der Panther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa66bbf10f22b4ef6239ec2f5fcf946f70ad5368217e0d7daac54ce1b7871a2a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEWM20879848.
Kapitel 20.2 & Kapitel 21.1 - Der Panther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad76f200cab40c2c4df1768576a39d3d3236fc8619c951fe54e57ee6622f605. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM20879849.
Kapitel 21.2 & Kapitel 22.1 - Der Panther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92dd16a530be50749dfbe01503f0428081cb41ae6b890b752fd6fe40f335718d. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DEWM20879850.
Kapitel 22.2 & Kapitel 23 & Kapitel 24.1 - Der Panther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47249c05f4dc545681e3a5a0296e974cf63437f7d2c0b50cda86f3496ba1c60b. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM20879851.
Kapitel 24.2 & Kapitel 25.1 - Der Panther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ddedce96b7adab36c0ad971faf2639ef83ea9fcb6a23c6ec8b569a9aeefb2b9. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/DEWM20879852.