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 0x9d4a379cb11689e1446b97fe257714302c1bc262d94588cb4296aa9718bb907e. 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/9a8d937b-1abe-4a89-b37c-68d2ca595774.json and https://artists.proofprofile.net/proofs/artist/9a8d937b-1abe-4a89-b37c-68d2ca595774.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Der Vorname (Das Original-Hörspiel zum Film)
Kapitel 13.3 & Kapitel 14.1 - Der Vorname
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 0x54b627251cd946a70b8a1078f6bb2922dac82de1003645c785c9ef50c4b12e53. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEVP81313757.
Kapitel 14.2 & Kapitel 15.1 - Der Vorname
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78db845fc69e07895ff05ea506e6778b00fd328d7e9e76af317f19b64a648546. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEVP81313758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57fb5d1b4f507eae7b79ae27fd2138ea7c737718e06c403bcabca926b335681. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81313759.
Kapitel 15.3 & Kapitel 16.1 - Der Vorname
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e42eb1218befba9f87eeaf7e6c313dfb2cfe57f17d99b02564ea7814cf7fd4. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/DEVP81313760.
Kapitel 16.2 & Kapitel 17.1 - Der Vorname
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffb3e9b4735b10bf9af0e5c04d49a7b1a5f0434b590f844fd55cbd66d192285. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/DEVP81313761.
Kapitel 17.2 & Kapitel 18.1 - Der Vorname
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4d5775c78ddd04ebf36763c8dabfb8be94513b7f18bd6c6d6be0bc496865ae. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/DEVP81313762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf611ba197811a74f1521cb82f113fa49ae47178b38b6cd16b8067ac4211096. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81313763.
Kapitel 18.3 & Kapitel 19.1 - Der Vorname
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d4be36c2795c0c38856b412b59dfd442598547771ee7f58f311fe02e077954. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEVP81313764.
Kapitel 19.2 & Kapitel 20.1 - Der Vorname
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc156b349053205b33334c6fd2d4ff82938cb320877366b0637922642272b6c46. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81313765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2797ffde221361c8cf6ed6593cf4e070aca920adb62df8f412612bdbae859ac. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEVP81313766.
Kapitel 20.3 & Kapitel 21.1 - Der Vorname
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728c0a9be90656c92236cdbbf3b282a76eac60bbc50629036030fcc324aff9bb. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/DEVP81313767.
Kapitel 21.2 & Kapitel 22.1 - Der Vorname
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c77a0cddd038a0b3725c2ab4748a95fd65e630d948cd8e2d408273c312dfa5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEVP81313768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3363c8079dc1a83a13adc1a9646f9bc7275e78c018e34544d594cc8e1bbd1e0b. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/DEVP81313769.
Der Nachname. Das Original-Hörspiel zum Film
Kapitel 1 & Kapitel 2 & Kapitel 3.1 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550066f378da6b802645703f32013a4ddb976a8adb684247d27318959c7a2843. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/DEWM10423281.
Kapitel 3.3 & Kapitel 4.1 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9b7de57dab04d72fadc0838d970d07c732d857fbf8e85458440c7764e2931a. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/DEWM10423283.
Kapitel 7.2 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9da639825062ed6c6567872b5a3a18cbbb194134f8b32ceedef68285cfb5662. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM10423288.
Kapitel 9.2 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939e04707ae16fe6f0b5bff845d0f2becd3c53361557a9d9d719d673e0dc36c7. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM10423291.
Kapitel 11.3 & Kapitel 12.1 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582099e92c556c351a0664fe2baa109c3b9994a765ae1d2ff0426754dfd2eecb. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/DEWM10423296.
Kapitel 12.2 & Kapitel 13.1 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3054410db860d2ad0f1bdd080def67608f00a9e9954065c3408b01fabd62ad7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM10423297.
Kapitel 13.2 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30edc881ee31b699d707ca7b2768e2b1bdbd531b0ebfae212907f92e9b66d76. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/DEWM10423298.
Kapitel 13.3 & Kapitel 14.1 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa465a2f87c1cc5b33d0a8a673c37cca64ff60c7df877ff84d48f9172180c3987. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEWM10423299.
Kapitel 14.2 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0d2a31af31df58d86780c85b42f8327b6189d0ddaf842443dc62cd9ecd993d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEWM10423300.
Kapitel 14.3 & Kapitel 15.1 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4645ecd12d5c91c08a75c9c35e7d3460485dbf0b6c02c3c7b504c01dda29d544. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEWM10423301.
Kapitel 15.2 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0350bf0ac72369bfea12db6b41bb4d40b5dc71628f45290ea4076b556f3c2aec. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM10423302.
Kapitel 15.3 & Kapitel 16.1 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43db9a28e228dd912475d40cc8c04e8325c5417bed364ab795d38f36d1443ac3. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM10423303.
Kapitel 16.2 & Kapitel 17.1 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13236879a926502e68f800a4fb0ddadaa236fff350d10f88b3c4ea8b5a680afd. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM10423304.
Kapitel 17.2 & Kapitel 18.1 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b30faaf2345aa96fe9538717d0438adea9198a6a046d5ee2e138752a285f1d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM10423305.
Kapitel 18.2 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a85b64716567a2e1b6d643ebe5015e17c086e0f0f2b17c72c5079a978a2d2a. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM10423306.
Kapitel 18.3 & Kapitel 19.1 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a4207ece2f9e5b0fbf5430994ee69ba8537f31fccd2b50a8eebaaaedfb0fd8. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM10423307.
Kapitel 19.2 - Der Nachname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9d39d5503a2e869cdffe10b441679943e180c03f9739a370038df1511d8d4c. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/DEWM10423308.
Der Spitzname. Das Original-Hörspiel zum Film
Kapitel 30 - Der Spitzname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40941049046822bfd257eb99ff8d5beda12a94d1450dd36d52710bca9f2b9f2c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DE1JS0747730.
Kapitel 32 - Der Spitzname. Das Original-Hörspiel zum Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a8a10150bf8f44fef9cee837cd17a2eed69b3dde08395bb9e5ab4e861c1370. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/DE1JS0747732.