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 0x4ee326da858eb71ec66920e02ad06fa76ac0a7eaf332cd443645c2e5dd48134a. 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/5ce3dc3d-570b-41d5-b428-7ba87bee5252.json and https://artists.proofprofile.net/proofs/artist/5ce3dc3d-570b-41d5-b428-7ba87bee5252.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Folge 01: Elektrizität (Das Original-Hörspiel zur TV-Serie)
Folge 02: Fahrrad (Das Original-Hörspiel zur TV-Serie)
Folge 03: Glas (Das Original-Hörspiel zur TV-Serie)
Folge 04: Gruseln (Das Original-Hörspiel zur TV-Serie)
Folge 05: Haie (Das Original-Hörspiel zur TV-Serie)
Folge 06: Höhlen (Das Original-Hörspiel zur TV-Serie)
Folge 08: Mond (Das Original-Hörspiel zur TV-Serie)
Folge 07: Luft (Das Original-Hörspiel zur TV-Serie)
Folge 09: Raubtiere (Das Original-Hörspiel zur TV-Serie)
Folge 10: Schlaf (Das Original-Hörspiel zur TV-Serie)
Folge 11: Sehen (Das Original-Hörspiel zur TV-Serie)
Folge 12: Wüste (Das Original-Hörspiel zur TV-Serie)
Folge 13: Altes Ägypten (Das Original-Hörspiel zur TV-Serie)
Folge 14: Dinosaurier (Das Original-Hörspiel zur TV-Serie)
Folge 16: Raumfahrt (Das Original-Hörspiel zur TV-Serie)
Folge 15: Umweltschutz (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Folge 01: Der neue Mitbewohner (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Folge 02: Der woozelige Schrank (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Folge 03: Der blaue Hund (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Folge 04: Der Flohmarkt (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Folge 05: Freitag, der 13. (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Folge 06: Die unfreundliche Nachbarin (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Folge 07: Meerwoozchen allein zu Hause (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Folge 08: Woozle gegen Simón (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Folge 09: Woozle ist weg (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Folge 10: Gummibärchenalarm (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Folge 11: Likest du mich, like ich dich (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Folge 12: Chaos-Camping (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Das Grusel-Spezial - Folge 03: Die Rückkehr der Woomie (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Das Grusel-Spezial - Folge 06: Der Poltergeist Teil 2 (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Das Grusel-Spezial - Folge 05: Der Poltergeist Teil 1 (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Das Grusel-Spezial - Folge 04: Ein märchenhafter Spuk (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Das Grusel-Spezial - Folge 02: Ein sehr kleiner Vampir (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Das Grusel-Spezial - Folge 01: Es ist ein altes Haus (Das Original-Hörspiel zur TV-Serie)
Folge 17: Giftige Tiere (Das Original-Hörspiel zur TV-Serie)
Folge 18: Raketen (Das Original-Hörspiel zur TV-Serie)
Folge 19: Ritter (Das Original-Hörspiel zur TV-Serie)
Folge 20: Pferde (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Folge 13: Meerwoozchen außer Kontrolle (Das Original-Hörspiel zur TV-Serie)
Folge 21: Bienen (Das Original-Hörspiel zur TV-Serie)
Woozle - Die Serie - Folge 14: Die Abschiedsparty (Das Original-Hörspiel zur TV-Serie)
Folge 22: Das alte Rom (Das Original-Hörspiel zur TV-Serie)
Folge 23: Spinnen (Das Original-Hörspiel zur TV-Serie)
Folge 24: Raubkatzen (Das Original-Hörspiel zur TV-Serie)
Folge 25: Piraten (Das Original-Hörspiel zur TV-Serie)
Folge 26: Sterne (Das Original-Hörspiel zur TV-Serie)
Folge 27: Die Maya (Das Original-Hörspiel zur TV-Serie)
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 0xba40599c991f4afaaec7ab5b5e287e0fb3edf5146eea316c4c9be69eb032b137. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/CH7812540646 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e08041f6175a4fb919aff204f61e85cabf7be4f56cd9b76b2cfbea643e05c3. 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/CH7812540647 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cae5dd7a9524d26e5359d647821473fc2aa0ddecd2db41bdeba2e7eae0c3f0. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812540648 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1755578ec90115f280f1c08e10e577ddcd53d3e6d4ea54c3bcdb6e29daa335. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/CH7812540649 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757b93ba0e58698b62b4935491fe23893aaa688f5a6655800de39947db875f4b. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/CH7812540650 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b6f04fb9d4df59a7bae296b9ad7814ada8f7dc9a68e69d3c637de3332f37df. 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/CH7812540651 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022ee0ace56b4290de8a902a910960908c3bbd62355ebaff1afab8368c27d468. 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/CH7812540652 — a six-check JSON result.
Folge 28: Wetter (Das Original-Hörspiel zur TV-Serie)
Folge 29: Meere und Ozeane (Das Original-Hörspiel zur TV-Serie)
Folge 30: Die Entstehung des Lebens (Das Original-Hörspiel zur TV-Serie)
Folge 31: Archäologie (Das Original-Hörspiel zur TV-Serie)
Folge 32: Zähne (Das Original-Hörspiel zur TV-Serie)
Folge 33: Verdauung (Das Original-Hörspiel zur TV-Serie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d3fbfb21ffb5f039aa04c771380495f928b6876412987c8d789dc0e17b2e53. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812548648 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337d6b3bc6f92b75c652d3f377ae578714faba9d261c4a9a2d49481af6c3f2f5. 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/CH7812548649 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6c6e5439699e497461d2f726711a6e8f6111a5793c73b3ef0c44f11fb9f56e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CH7812548650 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5dfd5263cafdd5123918a1388fa083f0bd714bd124fccae469f3d705899be8. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/CH7812548651 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd75f8766a2548787c5151034c075f1af86da3a477270564f675d5284591e62. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CH7812548652 — a six-check JSON result.
Folge 34: Insekten (Das Original-Hörspiel zur TV-Serie)
Folge 35: Gesundheit (Das Original-Hörspiel zur TV-Serie)
Folge 36: Weltwunder (Das Original-Hörspiel zur TV-Serie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226aa20432d2da6f7fc5c47e93aa2f7659a254d612549d1cfb2475424a707a30. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/CH7812551081 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63232082eb33e45ce432b2a21ee59a691648cae7e971461c4b442d928654534d. 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/CH7812551082 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31465d611787da65924774cd0e7a47ae5fef49a9376fc4b068b2e107c1ef777a. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/CH7812551083 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988b091a0081d023028d47a9ef920ac3a5ab91c80d990e6a7bb11f751888a026. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/CH7812551084 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc441733fcfe68e959a69430942760548ad258b4a5246f7b5715e0ce9c660764e. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812551085 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fb0abc682a27c7c091eeff9bd25fa1e6f34dee8c369949a8d7165d95ab11f6. 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/CH7812551086 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b867f3379b52502e49c4acb740e2a2c89487d95f853f5973cfab1147d2850c. 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/CH7812551087 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c27eb57fbf23feb4080842a1ac9e4176d5ca1c16f2c2e5a51ae3647fdfff6d. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/CH7812551088 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfd298e55654586063c65dfd85e17385f9e2bbb1a0a4ac159f04491c754b1fe. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/CH7812551089 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f25ad1be3542d4b01d66c527a025bcdfd3a6fc4a106a7f06dc3e01f591cf35a. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/CH7812551090 — a six-check JSON result.