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 0x994793b8e5d02f835dbcf0a7f490be5e9ec62e60eb0a26c103a54a5f85870537. 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/96bc020b-cb93-41a7-92c0-3e6beb60d0f0.json and https://artists.proofprofile.net/proofs/artist/96bc020b-cb93-41a7-92c0-3e6beb60d0f0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x463a978e566ee784d6a3d78319e77c32d5b1e6b02a7f172ae6bd6fa0b1886d6c. 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/DEXQ60953745 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed609d1267a6c1e9fb9323851b6008e7614498fa9aa4849fc5587cb80be16b79. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEXQ60953746 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64212ef1a128cdfe520e420a8ae2ea2a2e4391db74161f0c84de24b0b6a9830. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ60953747 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e37ddeb19b8fa95286a8c4f5fc59b99dc9d8306b4f591aab1f28ef867fa325b. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ60953748 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91c98a3e255e731066ab34fea03daf5eb93cf6bee44bd3444ff082f25c22420. 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/DEXQ60953749 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60b337c6fde5232ae99fad3c353c500f1e633476ddd3ef7f2f1464a6b0c5b85. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/DEXQ60953750 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80c16f706232f3fcb458445ac40596ff04024f26fa05995cfd453038b28e580. 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/DEXQ60953751 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d864ce5b00303ec708949733db7b55fac40d04d96ad816217dbd52d9b2d978d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ60953752 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b73de53b850a59900de3a10d8488c690b2b6df8cd8abb5aec072103b9ccd1e8. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ60953753 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793103808d9cb917ce9948238e806e4f59e5375b55edac737cefc6c89c8f3028. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ60953754 — a six-check JSON result.
Die Geschichte vom Löwen, der nicht schreiben konnte (Ein musikalisches Hörspiel)
Wir sind nachher wieder da, wir müssen kurz nach Afrika
Kapitel 1.1 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17079f3a6d20fc16d974948d6d0f643c25faf1eb50be64b16d1f2fefb272da84. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81155437 — a six-check JSON result.
Kapitel 1.2 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57fba46968ced4c431465b07e91924c2d1f7423fda48a57bdf1b5fa1bac04ca. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81155438 — a six-check JSON result.
Kapitel 1.3 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe836eb4f228d6955c2ae3f74a92cecd5e7e495eb7b4b6be242b451c5e27fb8. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/DEVP81155439 — a six-check JSON result.
Kapitel 1.4 & Kapitel 2.1 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a784ada56a1c926ebc323cf73b21ccbcdcc884196800ffed10a1961f8b286c. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81155440 — a six-check JSON result.
Kapitel 2.2 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b6d9b979a6007e5501711585fbfa8ccf3c5d774cf03e6ac136f8933a797eee. 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/DEVP81155441 — a six-check JSON result.
Kapitel 2.3 & Kapitel 3.1 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd04763b24ebbd0f2ec954b64947c1c6c004e4d9808595d283a28fca16b15ae4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81155442 — a six-check JSON result.
Kapitel 3.2 & Kapitel 4.1 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae8716f603ae02e7eb152cbfb97a6da828e80de710640d2d4e321a4f619cf65. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81155443 — a six-check JSON result.
Kapitel 4.2 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2016994acfb82fc5e3b4b17bd45c37c14ce1730bf3981321f0efbea93081731. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81155444 — a six-check JSON result.
Kapitel 4.3 & Kapitel 5.1 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa311ed4ccb1dd1cb91bad1b1f8bb1400ae5587627f2eef75d6c928c97f084208. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81155445 — a six-check JSON result.
Kapitel 5.2 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa71117dbce456e6bb0bbd3ae946e75120b54ced387fe1caa23ab0f1786aeb53. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81155446 — a six-check JSON result.
Kapitel 5.3 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbc79161db3d9b91fc28d63704cfa3eb8a3e540b25d27092b00f473c3ca5307. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81155447 — a six-check JSON result.
Kapitel 5.4 & Kapitel 6.1 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1eb5db9c87b34b88f59df620dce332f8dae7367bd4ba67ef45c747155fb7ce. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81155448 — a six-check JSON result.
Kapitel 6.2 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a825125447bd2cf1e9d0659d5709fd27f9af6d37189df162b09c87c0cbb4ec9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81155449 — a six-check JSON result.
Kapitel 6.3 & Kapitel 7.1 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c9de1a8ee72e45891636b972e96ce9d7a04e4a0dd91b901136a75318aa9b5e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81155450 — a six-check JSON result.
Kapitel 7.2 & Kapitel 8.1 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96ebe8d569b6130043b6cd2714c7c42718b2e993853baff4579bb9c986411c2. 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/DEVP81155451 — a six-check JSON result.
Kapitel 8.2 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc651d5c62e64d0189883038afd71f22c9fc3a2b2e03809ca4a94ca2c88d5763e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEVP81155452 — a six-check JSON result.
Kapitel 8.3 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5932d2ffb20a04a03a8429d971e987df8094d4524b306cedadcc426d3d96938b. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/DEVP81155453 — a six-check JSON result.
Kapitel 8.4 & Kapitel 9.1 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ca5c9f3d7d1548d29f759fbb681d7bfd62a3b6c1c6d6dab1ba04aa599c3ec7. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/DEVP81155454 — a six-check JSON result.
Kapitel 9.2 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde878a3af2fff58ee06af446a5a625ec3291652ab23fc10669df4d717163f76d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81155455 — a six-check JSON result.
Kapitel 9.3 & Kapitel 10.1 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0b2d88d79a95b36da126f6622d69289780e19b10cfdc2ded34164afc37abd1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEVP81155456 — a six-check JSON result.
Kapitel 10.2 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fd9b0c6cd1df02477c8ce4fc0ed1cc5468f656f811f6200c3913d3bd7b0bdd. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/DEVP81155457 — a six-check JSON result.
Kapitel 10.3 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a5600ca5c5fa9b102b8b08df764952484ad8dfa8540a3a06a68bf7544d4de0. 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/DEVP81155458 — a six-check JSON result.
Kapitel 10.4 - Wir sind nachher wieder da, wir müssen kurz nach Afrika
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40520921b40a5b541a0dd6a7e5b6ee35a5d20794a1013c7a697ffaede43b0753. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81155459 — a six-check JSON result.
Geckos große und bunte Geschichtenwelt. Von Stink-Wettbewerben, Monstern und Zauberhaaren
Ben 2: Ben. Schule, Schildkröten und weitere Abenteuer
Krähe und Bär oder Die Sonne scheint für uns alle (Hörspiel)