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 0x9d950627d260c000e072414c7fd16f6d9ade60eea0c64031aa37d19839c4161f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82fad046-b9fe-4fc9-ab0c-67d67882511f.json and https://artists.proofprofile.net/proofs/artist/82fad046-b9fe-4fc9-ab0c-67d67882511f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tom Poes en het cadeautje voor heer Olli (De Gouden Luisterboekjes) [Verteller: Sjoerd Kuyper]
Aap en Mol in het paleis (Luisterverhalen) [Verteller: Dieuwertje Blok]
Aap en Mol in het paleis (Luisterverhalen) - Verteller: Dieuwertje Blok
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 0x1fa17916543e4d068d99d395159304d6267fc79675bde989ca772ed3be8c4c55. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLT341911001.
Houtje en Blauwtje (Luisterverhalen) [Verteller: Dieuwertje Blok]
Net als Anne (Luisterverhalen) [Verteller: Job Cohen]
Adje doet heel druk (Luisterverhalen) [Verteller: Adriaan van Dis]
Vincent en Camille (Luisterverhalen) [Verteller: Jeroen Krabbé]
Xing Ya en Wu Wen (Luisterverhalen) [Verteller: Dieuwertje Blok]
Waar is Mo? (Luisterverhalen) [Verteller: Toon Tellegen]
Mano de brandweerjongen (Luisterverhalen) [Verteller: Toon Tellegen]
Mika het beertje dat niet slapen wilde (Luisterverhalen) [Verteller: Gijs S. van Aschat]
De krantenpoes (Luisterverhalen) [Verteller: Job Schuring]
Als Feda slaapt (Luisterverhalen) [Verteller: Toon Tellegen]
Gompelemikkie! (Luisterverhalen) [Verteller: Floor Verdonck]
Het meisje met de gouden jurk (Luisterverhalen) [Verteller: Dieuwertje Blok]
De knopjeswinkel (Luisterverhalen) [Verteller: Dieuwertje Blok]
Het kerstfeest der dieren (Luisterverhalen) [Verteller: Floor Verdonck]
Ganzelot gaat naar de markt (Luisterverhalen) [Verteller: Dieuwertje Blok]
Het verhaal van Sinterklaas (Luisterverhalen) [Verteller: Dieuwertje Blok]
Angelino en de drie koningen (Luisterverhalen) [Verteller: Simone Milsdochter]
De koning gaat uit varen (Luisterverhalen) [Verteller: Simone Milsdochter]
Operatie Vrotte (Luisterverhalen) [Verteller: Loes Luca]
Sammie is zoek (Luisterverhalen) [Verteller: Loes Luca]
Het boek van de sterren (Luisterverhalen) [Verteller: Loes Luca]
De Indische waterlelies (Luisterverhalen) [Efteling]
De Indische waterlelies (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349964072040bd5c12c157ae53f90e768454eb107dced3da5892ad14bcfb5dd3. 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/NLT342111058.
De magische klok (Luisterverhalen) [Efteling]
De magische klok (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4377b8584bf4f7bf3ee33c2a307acc3aea45b9f1f8c09d289f3cbe1726faa82d. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:55:54Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLT342111059.
De nieuwe kleren van de keizer (Luisterverhalen) [Efteling]
De nieuwe kleren van de keizer (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a1d95ccd3bc745b705544a4fcf0057c58931e32bbf93e12346c4fc7c1d9412. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLT342111060.
De Bremer stadsmuzikanten (Luisterverhalen) [Efteling]
De Bremer stadsmuzikanten (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3af5af15f8ab55b979cec9eb6cf5d3790a5eca7f3689a45b4887d603f5620c. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/NLT342111056.
De rode schoentjes (Luisterverhalen) [Efteling]
De rode schoentjes (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ee4e7e16553c87671dc8c52ccf90cf56428edcf6c491d031533d7514a177b1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLT342111061.
De tuinman en de Fakir (Luisterverhalen) [Efteling]
De tuinman en de Fakir (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf686d246b8b0145cec8fc9b21584c13269ce01d4b43458c49be7ff8aa8d67d18. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLT342111063.
De Trollenkoning (Luisterverhalen) [Efteling]
De Trollenkoning (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7694442f018cd193cd82594f4856dea9e597eeea81c84051e50a1a872fc8b4a0. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/NLT342111062.
De gelaarsde kat (Luisterverhalen) [Efteling]
De gelaarsde kat (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab31a9a204e3b9ad3de5d0bfa13704f76daf74e5457379dd7e47f83464215eb. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLT342111057.
Tafeltje dek je ezeltje strek je (Luisterverhalen) [Efteling]
Tafeltje dek je ezeltje strek je (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d134ad25aa6120bfc40dd00c3db526964873c16682dec8ad78512b773929153. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLT342111071.
Repelsteeltje (Luisterverhalen) [Efteling]
Repelsteeltje (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81c9cfc5f898330c74e6f52a77c8ff567311f58e987a4b2dab9c98527bd2965. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLT342111069.
De zes dienaren (Luisterverhalen) [Efteling]
De zes dienaren (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e5c27b2f4cf059caef76dd7c09a4749d1b2b7b41ce46e8121a57c751265595. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:44:03Z), 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/NLT342111065.
Zwaan kleef aan (Luisterverhalen) [Efteling]
Zwaan kleef aan (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4871af05b7a8d8653dbd47365b7d2370be930515cc0fed28dce72d9a434d2070. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:26:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLT342111072.
Hans en Grietje (Luisterverhalen) [Efteling]
Holle bolle Gijs (Luisterverhalen) [Efteling]
Holle bolle Gijs (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a855af3015e53b251cade68cb67e85d8e604f21c61b49d592649b05a032152e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLT342111067.
Klein duimpje (Luisterverhalen) [Efteling]
Klein duimpje (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14228b8eea0fce12cdfe9d95e98c8c04002522eb46300d6df47e2ab03de075a9. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:20:43Z), 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/NLT342111068.
De wolf en de zeven geitjes (Luisterverhalen) [Efteling]
De Chinese Nachtengaal (Luisterverhalen) [Efteling]
De Chinese Nachtengaal (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5053511902b5239d2ab77eab827bd6a3298ceeac5df46c52a8238664c3774126. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLT342211074.
Vrouw Holle (Luisterverhalen) [Efteling]
Vrouw Holle (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0080457e4f5be089645c1fbc54468827063971c2f1292d0113b4f135e196f4bd. 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/NLT342211079.
Assepoester (Luisterverhalen) [Efteling]
Doornroosje (Luisterverhalen) [Efteling]
De Prinses op de erwt (Luisterverhalen) [Efteling]
De Prinses op de erwt (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7815f2fcf770c0026f5ba208677c9a3d29356170d827d9d7f22ccd3e44e0f8a. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/NLT342211075.
Het Stoute Prinsesje (Luisterverhalen) [Efteling]
Het Stoute Prinsesje (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6777a613e76ac522424dd76097382be6b13954c636ea270ac630d376d1d030. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLT342211078.
Het Meisje met de zwavelstokjes (Luisterverhalen) [Efteling]
Het Meisje met de zwavelstokjes (Luisterverhalen) - Efteling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453d95a7362a9b44d7b8388297c410d42d30403f5c640b61b839a0418ffe36f0. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:49:39Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLT342211077.
Mia's nest (Luisterverhalen) [Verteller: Loes Luca]
Wat is water? (Luisterverhalen) [Efteling]
Het klinkende muntje (Luisterverhalen) [Verteller: Loes Luca]
De school is jarig (Luisterverhalen) [Verteller: Simone Milsdochter]
De Goudse kaarsjes (Luisterverhalen) [Verteller: Simone Milsdochter]
Tom Poes en de blaasgeest (Luisterverhalen) [Efteling]
Zes Goudse kaasjes (Luisterverhalen) [Verteller: Simone Milsdochter]
Aap en Mol in Museum Panorama Mesdag (Luisterverhalen) [Verteller: Gitte Spee]
Aap en Mol in Museum Panorama Mesdag (Luisterverhalen) - Verteller: Gitte Spee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c527cef6caeac94eedeac80a34076f8759573a33e2b69b45a134779ca830a40. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLT342211082.
Aap en Mol gaan met de trein (Luisterverhalen) [Verteller: Gitte Spee]
Aap en Mol gaan met de trein (Luisterverhalen) - Verteller: Gitte Spee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032c13444018ca100317081bf01e14be1ec1de42b99c39e6391c06c9ab4f3a6d. 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/NLT342211083.
Tom Poes en de Bommeltjes (Verteller: Sjoerd Kuyper)