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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb050db75dea01a9af2b188cc674b523ec526ac5ed76b56437780d5b3dcf4a2. 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/14628dc3-98d8-463d-a19c-3f4bf763e74d.json and https://artists.proofprofile.net/proofs/artist/14628dc3-98d8-463d-a19c-3f4bf763e74d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sörensen macht Urlaub [Sörensen ermittelt, Band 5 (ungekürzt)]
Sörensen sieht Land [Sörensen ermittelt, Band 4 (ungekürzt)]
Sörensen hat Angst [Sörensen ermittelt, Band 1 (Ungekürzte Autorenlesung)]
Kapitel 51 - Sörensen macht Urlaub - Sörensen ermittelt, Band 5
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975d928e1d6c22cce58a45890520e7e509ebba5dc4ca6f913a02da7b98c622d8. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/DEXO12489145.
Kapitel 1 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a102d8910ede07aaade84a386616746a97ae9ca8ed53c9386a7ac7308a1e41. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/DEXO72013791.
Kapitel 71 - Sörensen macht Urlaub - Sörensen ermittelt, Band 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdceb63d4e47dd0eb42a023e726feeb7ac6d4ef9d97c43b2d89017289ec9332a5. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/DEXO12489165.
Kapitel 2 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b72360dd4c7d9ae0186e63da84a46526bb876545d391329e5d5acdd7508fdd. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DEXO72013792.
Kapitel 8 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328d55e003af878d91153cd3922e90acd1eb3d44b622c5289fadef5c8259a6ef. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEXO72013798.
Kapitel 14 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294428682b032c73a1a67cc8c13ce4ea89f7bd27053ac3495bc4e99ef741e8cb. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEXO72013804.
Kapitel 15 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23fc027b121f3819feaf85b1fe5c306b4c938f629ecb462bbb32aca5cca2088. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:52:20Z), 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/DEXO72013805.
Kapitel 20 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78612de557e303aec69aaefe84c3aca32fe49a1505e124c2486221b5fc91364. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEXO72013810.
Kapitel 11 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa306b487421bb0c883e2d3e5017d7f420e6bf1e6da9ed72fc5268580e8aab698. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO72013801.
Kapitel 12 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83ef2131c830c5c72fb5f7d4c6d45c1d31629bc5f22ad10b2e17d4af9c630f8. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:01:14Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO72013802.
Kapitel 10 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7554784cb07aca861368c8d44eb430d4ba4c996d21a4fe2e4c77b370ee09b39. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO72013800.
Kapitel 6 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155d382866c0d587270a8c935465187528711ee96f9c2c9c9e02a76009a76c5e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:04:40Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO72013796.
Kapitel 9 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde23bc401d0e26bb3a36e81e2131c68e9cfdb81539906eb9a67cec16823e42ce. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEXO72013799.
Kapitel 7 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05baff16976798013bd9e3745ab6cec38585fc356d9f1d9640b7f106b56f4e2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO72013797.
Kapitel 17 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4b4b8274b66d07a28a0d4028739ec4e383b8c2a5a87005504bc5e31f593c1a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEXO72013807.
Kapitel 13 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca5c164aa25e007fcb5fe68262f0e6c5b0eb0a64ba1c9008546406e8c6d1e12. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/DEXO72013803.
Kapitel 3 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718cb8993f3ce96229976410da4bec19a04cbbea3a24eb53a6e4cb052459e879. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:20:50Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO72013793.
Kapitel 4 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e1b15e2aa33cd193a2abfcfaf043de97acc70e34dbfa26ca6294565ea182f5. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:43:59Z), 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/DEXO72013794.
Kapitel 5 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253cb9c80807d05703703855935c8608da849d1d050d6427054ed3e9d44ab607. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEXO72013795.
Kapitel 16 - Sörensen hat Angst - Sörensen ermittelt, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3a79e3ff9d0374efbd1112eeef0366ae8d29e0a372ae6582cf2bc662ba310f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEXO72013806.