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 0x0988246cc2153a87f5cd54dbf1a416d626553c450a38f698cd52f04c0c225a99. 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/8b88a3d5-6877-4e85-a410-9c5fcf7d5982.json and https://artists.proofprofile.net/proofs/artist/8b88a3d5-6877-4e85-a410-9c5fcf7d5982.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schön, dass du da bist! Geschichten von Tilda Apfelkern
Tilda Apfelkern. Wunderbare Geschichten aus dem Heckenrosenweg: Herbst und Winter
Tilda Apfelkern. Oh du fröhliche! und Wunderbare Weihnachtszeit
Tilda Apfelkern. Wunderbare Geschichten aus dem Heckenrosenweg: Frühling und Sommer
Tilda Apfelkern. Die Freunde vom Heckenrosenweg (Rettet Molly! und andere abenteuerliche Geschichten)
Tilda Apfelkern. Die Freunde vom Heckenrosenweg. Mini-Rupert mal zwei (und andere abenteuerliche Geschichten)
Juli Löwenzahn. Schatzsuche im Möhrenbeet (und weitere Geschichten)
Hieronymus Frosch. Auf der Jagd nach dem Tomatenfrosch (Eine höchst praktische Erfindung mit viel Kawumm)
Tilda Apfelkern. Frühling, Sommer, Herbst und Winter (Ein schönes Jahr im Heckenrosenweg)
Kapitel 14 - Tilda Apfelkern. Frühling, Sommer, Herbst und Winter
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 0x4156dec5c1a8853f0282c186d963529e0e8037073545a36625be3bfd8a6d503b. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:42:40Z), 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/DEWM42497469.
Kapitel 15 - Tilda Apfelkern. Frühling, Sommer, Herbst und Winter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d8e63bd9aac584432817111046656465fb3de8d7097bc2f0b688a547f4941f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEWM42497470.
Nils und Ole. Ein Jahr voller Abenteuer [ungekürzt]
Juli Löwenzahn. Ein Tag im Baumhaus und andere Abenteuer
Tilda Apfelkern. Ein Weihnachtsfest voller Geheimnisse (24 Geschichten und ein kleines Adventsabenteuer)
Tilda Apfelkern. Viel Wirbel im Heckenrosenweg
Tilda Apfelkern. Die schönsten Geschichten aus dem Heckenrosenweg
Tilda Apfelkern. Weihnachtszauber überall (24 Adventskalender-Geschichten und eine Weihnachtsüberraschung)
Snöfrid aus dem Wiesental. Das ganz und gar fantastische Geheimnis des Riesenbaumes
Kapitel 1 & Kapitel 2 & Kapitel 3.1 - Snöfrid aus dem Wiesental. Das ganz und gar fantastische Geheimnis des Riesenbaumes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55066153215444c4213bbde156614456a26cdbd216b38e93dee65b76bd6a0ea. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM31123598.
Kapitel 3.2 & Kapitel 4.1 - Snöfrid aus dem Wiesental. Das ganz und gar fantastische Geheimnis des Riesenbaumes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7438899dd4c890c2bd64e9939a04b86c028d674a98c4f11365ff0381823477ee. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM31123599.
Kapitel 4.2 - Snöfrid aus dem Wiesental. Das ganz und gar fantastische Geheimnis des Riesenbaumes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e107a12b91f95cd2dc31c023a4df882e1309ef7eafafc3f4ab5d5cd3a235db9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM31123600.
Kapitel 4.3 & Kapitel 5.1 - Snöfrid aus dem Wiesental. Das ganz und gar fantastische Geheimnis des Riesenbaumes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01738824439be4ab988e45879dc6e419dbcd49b167d1dcc78c85dafb247ab5d3. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/DEWM31123601.
Kapitel 5.2 & Kapitel 6.1 - Snöfrid aus dem Wiesental. Das ganz und gar fantastische Geheimnis des Riesenbaumes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa087fae7931ade3ba6cede2dce73f31d64f8e33f452a58aa5fec420e0b78332c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM31123602.
Kapitel 6.3 & Kapitel 7.1 - Snöfrid aus dem Wiesental. Das ganz und gar fantastische Geheimnis des Riesenbaumes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf947c93e20fc05a08bfae8b56ade4eeb7328718148daaeae1394177c09123a39. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEWM31123604.
Kapitel 7.2 & Kapitel 8.1 - Snöfrid aus dem Wiesental. Das ganz und gar fantastische Geheimnis des Riesenbaumes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269a1f29b77fc215d980d6c1e5cab0ba1330bd966d28729ca7abf3fbb68a4d5e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEWM31123605.
Kapitel 8.2 & Kapitel 9.1 - Snöfrid aus dem Wiesental. Das ganz und gar fantastische Geheimnis des Riesenbaumes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc534a39793b71d0334d2f3adf3b1f990b3c28ddf860abc9b69511431ca52c3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM31123606.
Kapitel 10.2 - Snöfrid aus dem Wiesental. Das ganz und gar fantastische Geheimnis des Riesenbaumes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633dc074f63508baaf6072e453495bd1c363496b337c9367ec0aee5062327578. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:48:14Z), 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/DEWM31123608.
Kapitel 11.2 & Kapitel 12.1 - Snöfrid aus dem Wiesental. Das ganz und gar fantastische Geheimnis des Riesenbaumes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bfa5f8ee8d6a78de7452fea44f127855d9e497e0aad8c34e3a6a89d2e7a50b. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:33:25Z), 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/DEWM31123610.
Kapitel 12.2 & Kapitel 13.1 - Snöfrid aus dem Wiesental. Das ganz und gar fantastische Geheimnis des Riesenbaumes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858a3d5464a74d191a7ef3b0a97a4bf2172284b03d50524ae095eac9f36fc0d6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEWM31123611.
Kapitel 13.2 - Snöfrid aus dem Wiesental. Das ganz und gar fantastische Geheimnis des Riesenbaumes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553783ec0b7013e55ef0e55fd9306f74745ce97c94fcdbe812982d6e842b2d8d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEWM31123612.
Snöfrid aus dem Wiesental. Das wahrlich große Geheimnis von Appelgarden
Tilda Apfelkern. Ein Inselausflug voller Geheimnisse und weitere Geschichten
Weihnachten! 24 Geschichten mit Tilda Apfelkern, Snöfrid und vielen anderen
Tilda Apfelkern. Ein zauberhaftes Hausboot-Abenteuer
Kapitel 1 & Kapitel 2 & Kapitel 3 & Kapitel 4.1 - Tilda Apfelkern. Ein zauberhaftes Hausboot-Abenteuer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d05da5fe0e5c24d40d20c635c57ef5d8c01680b07c3e1acd24cd85fb13607e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEWM31125359.
Kapitel 4.2 & Kapitel 5.1 - Tilda Apfelkern. Ein zauberhaftes Hausboot-Abenteuer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5651f2e99bf4a6deafdf9ad89473a3ed6ca115423dfc1cfe005a545cebf6e1ba. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM31125360.
Kapitel 8.2 & Kapitel 9 & Kapitel 10.1 - Tilda Apfelkern. Ein zauberhaftes Hausboot-Abenteuer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2915eed2cd673dd4894527a28038084c20483c940fa9445127ca62ab79fa57bc. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/DEWM31125363.
Snöfrid aus dem Wiesental. Die ganz und gar heldenhafte Suche nach den drei Siegeln
Missi Moppel. Das Geheimnis im Turmzimmer und andere Rätselhaftigkeiten [Band 1]
Snöfrid aus dem Wiesental. Das wahrlich sagenhafte Rätsel der Trolle
Tilda Apfelkern. Das Zauberpicknick im verschwunschenen Garten und weitere Geschichten
Snöfrid aus dem Wiesental. Die wahrlich rasante Jagd nach der Flussperle.
Missi Moppel. Die schwebende Teekanne und andere Ungereimtheiten [Band 2]
Tilda Apfelkern. Weihnachtszeit im Winterwald. 24 Adventskalender-Geschichten
Tilda Apfelkern. Das kleine Dorf auf der Suche nach dem Glück und weitere Geschichten
Kapitel 1 & Kapitel 2 & Kapitel 3.1 - Tilda Apfelkern. Das kleine Dorf auf der Suche nach dem Glück und weitere Geschichten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95bcddc8addc47c94cbcec31d9ca325585ad8e2dd62d3c96ed350814f86fc5d7. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEWM22266147.
Kapitel 5.2 & Kapitel 6.1 - Tilda Apfelkern. Das kleine Dorf auf der Suche nach dem Glück und weitere Geschichten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f85a5143c20f87a9bcaaf81554b245a7dcb16c7b92badf8513eb8ed123ae4f2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEWM22266149.
Hörnchen & Bär. Haufenweise echt waldige Abenteuer [Band 1]
Snöfrid aus dem Wiesental. Die wahrlich ungeheuerliche Nordland-Verschwörung
Snöfrid aus dem Wiesental. Der wahrlich wildbewegte Flug im Luftschiff
Snöfrid aus dem Wiesental. Durch Schnee und Eis zum Wunderpfeifchen
Kapitel 1 & Kapitel 2 & Kapitel 3.1 - Snöfrid aus dem Wiesental. Durch Schnee und Eis zum Wunderpfeifchen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb867e46aecc68397d2ec23bcb81838516382d57cba41f5d05ee17f54a0bef0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEWI10437459.
Kapitel 4.3 & Kapitel 5.1 - Snöfrid aus dem Wiesental. Durch Schnee und Eis zum Wunderpfeifchen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9111b8a0dd1c09b6628069b94d153665f8ca4d03ffc3b482ac9e81eeaac4e350. 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/DEWI10437463.
Hörnchen und Bär. Ziemlich quirlige Wald-Neuigkeiten [Band 2]
Snöfrid aus dem Wiesental. Die wahrlich rätselhafte Spur zum Vogelfelsen
Snöfrid aus dem Wiesental. Aufruhr im Land der Riesen
Kapitel 01 - Snöfrid aus dem Wiesental. Aufruhr im Land der Riesen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2a49b42797427b7b3ffe8bdac9ea90481f2267bacbe8c69365b8be75fbc62e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ62453746.
Kapitel 03 - Snöfrid aus dem Wiesental. Aufruhr im Land der Riesen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ad76edf95981ee16e0c159520a24c5958b3822a2501af3ed5342ffbb372f02. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEXQ62453748.
Kapitel 14 - Snöfrid aus dem Wiesental. Aufruhr im Land der Riesen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b996a92a06dfd67fc60f3e5b236797e6732967bb0dc307a0df53abeccddb0b0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ62453759.
Kapitel 20 - Snöfrid aus dem Wiesental. Aufruhr im Land der Riesen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78df4eab2abc2cffadd71b8e11a0ce903d5cd84a5d5f3921b4b2e2edcecf8f6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ62453765.
Kapitel 21 - Snöfrid aus dem Wiesental. Aufruhr im Land der Riesen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3fe4199b36a36485f0301b5c801632f1e6c040dcf33aba2851d6d27b0ebc48. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEXQ62453766.
Kapitel 26 - Snöfrid aus dem Wiesental. Aufruhr im Land der Riesen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fdfcde2d1b8d97cc0bd12c0bda9d6f360a94b425811918c43f87fa47a6d2dc. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:54:02Z), 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/DEXQ62453771.