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 0x731042bcef90844b982d5fba6eee93b9dc33d5897344350b790f8d00fad5d236. 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/01769652-a254-4da0-98ec-13b91caeaeaf.json and https://artists.proofprofile.net/proofs/artist/01769652-a254-4da0-98ec-13b91caeaeaf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kapitel 02 - Spring Academy: Die Diebin der Tautropfen
Spring Academy: Die Diebin der Tautropfen
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 0xbc1ff43ec4d06407d5d1787fd152c72ee5170d21883a482b34dc2d9e0a7b7c45. 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/DE1JU0414256.
Kapitel 01 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce37e85ab22cf63a7b1a62e2c00e69b72e16379d7736c14ce8f2ffc4140788e3. 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/DE1JU0414255.
Kapitel 01 - Winter Academy - Romantasy Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03230ec22f93988bb42192baa9ab9b74c080d506d93883a6489916b96749bace. 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/DEXR19904871.
Kapitel 03 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b97877343483535658d489cc97d8cfdbe953bb6969b3850a20f7546933a9d8b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DE1JU0414257.
Kapitel 21 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bf9db42b770c686e61a7503edd24e6739f3a709795f75cb75c41d9723c3344. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:09:14Z), 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/DE1JU0414275.
Kapitel 01 - Ein Herz aus Eis und Schnee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3161649136387e0a4c7adf819ac228d7d65de9ff57d3894a8d8ceffb9500dc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JR0701675.
Kapitel 06 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307cf407aac37729452bc1a879253fe90890b3fe5f840ada50d47b65be505bbb. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JU0414260.
Kapitel 1 - Gefangen - Die Zeitenwanderer Chroniken, Band 1
Gefangen [Die Zeitenwanderer Chroniken, Band 1 (Ungekürzt)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da1268cda515271b26cf08a473bf9e839bdb08c5ad01d17134af377ab3cf02c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1A22198415.
Kapitel 04 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc10224535ae68987f058577901ad2e2204060b61d84453853640319c61af65. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JU0414258.
Kapitel 10 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cabb01b75015e8df4b68ced522be654f650ffec1842e28263cf3be2d4e3b7c. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/DE1JU0414264.
Kapitel 18 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc13486b548912b28556671f5e97e8ae37aebe358d2fea1bb091a6e4e98f67d6. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/DE1JU0414272.
Kapitel 26 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1546f05c649ef15cf23d97c4fc66937a4c4bf4a2ba12a0f71cd3e840c08d2b. 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/DE1JU0414280.
Kapitel 40 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c44f2e7fcd16e5db497a592885837bd2963b3f03186959ea3ce0b9a48858f7. 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/DE1JU0414294.
Kapitel 09 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8299a3c7ff6ba9487a1def333bca2369b9faaf5d2d810e007b1b8b21858de3e8. 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/DE1JU0414263.
Kapitel 12 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ea8a873a479d11acc1bef46134ff32b636f0b1952845f47720680ef9208533. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/DE1JU0414266.
Kapitel 13 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3451d38bb723530ad1337246a672e45c60823450e6710cb887a14b87e36d3947. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DE1JU0414267.
Kapitel 05 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf51e4dd5e0796a98a0b7edf554871542baad273aec91543ad8d198ab9016a2. 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/DE1JU0414259.
Kapitel 07 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af9fe70c48ef3a1238e2e03f3f22c88c48876c000ba857f399f093cf80e3df7. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DE1JU0414261.
Kapitel 17 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1666b90e2c8704b09d6ddb4757eaa772527ce05f824bd96d3f39636d436e7cb7. 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/DE1JU0414271.
Kapitel 19 - Spring Academy: Die Diebin der Tautropfen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fba5613fbcb1d1eaf33002448d629ffd40867561b1dc625782f1d6d4e1249e2. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JU0414273.