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 0xfd7d40db1d0d9ad76167cde12d2971fafc0d369e6caf9437ef8e1dd0375a3d24. 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/3870acb4-d36f-4bcb-907e-5220b1decbbb.json and https://artists.proofprofile.net/proofs/artist/3870acb4-d36f-4bcb-907e-5220b1decbbb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Die Erbin [Der Butler, Folge 1 (Ungekürzt)]
Das Rungholt-Rätsel [Der Butler, Folge 2 (Ungekürzt)]
Der Butler, Folge 3: Das Mädchen (Ungekürzt)
Die Puppe [Der Butler, Folge 4 (Ungekürzt)]
Die Insel [Der Butler, Folge 5 (Ungekürzt)]
Die Bedrohung [Der Butler, Folge 6 (Ungekürzt)]
Teneriffa-Voodoo [Der Butler, Folge 7 (Ungekürzt)]
Das Haus Etheridge [Der Butler, Folge 8 (Ungekürzt)]
Die Jäger [Der Butler, Folge 9 (Ungekürzt)]
Die sieben Aufgaben [Der Butler, Folge 10 (Ungekürzt)]
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 0xbeccd904be224a87ef24bb366c065fdf3e59f2a83d689d6bfe36d4306ba7fb97. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/DEHC20988005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaceda2d5a077ae6c4b2a9db1931413de32c2c864a5b42e8f50fb7b7cd1344248. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/DEHC20988006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21edc36f3eecaf0a13770b6b5ff9b191dc2a1afbfc57a3bc5bb1399a8f2cd76e. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/DEHC20988007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d499a16112a083b9a44e330da4319942d7f1967cc161044cabc91668d65d7ad. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:31:24Z), 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/DEHC20988009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad024c4580dee63532321b05ec1773fb8aa59203c51c46c33ae27cf2b3e8fdf. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/DEHC20988010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2586d31118c563e18c5363947e5ba4b19516b722c69e4b83d57020d6c324ab23. 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/DEHC20988011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a6d7e2023f48f18f5a0f39d6926afcca30e16a49a70ee44269775b0018fe11. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:30:26Z), 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/DEHC20988012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b0416277e356ab9a26421e860c13a8ae6088589f192f06066f9e11c583af6c. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/DEHC20988013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c7ed158e879cab3003c4d034e36dd6a014bbd2e5e058e67ca6bbf353611ce2. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/DEHC20988014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76761e86529d6bef9a703bed02c3d5a7c5622179b8eda9edf603fee329796bc9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:33:15Z), 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/DEHC20988015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d21b342fdf446daca07c85a41248a74a033430b8082244d186966b519e0f1b4. 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/DEHC20988016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8933622a3863585d259827522eab16cf551c9b89d4d193699b80ceaa8a43138d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:50:16Z), 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/DEHC20988017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c58393cf73e8d111f41c668e952c59d5b2d19d57e358a14b8229673bed3f2e. 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/DEHC20988019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b677eb58e9009781e4c0ce11161521eb58cb67ec9ad2517abd91c5410777810. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/DEHC20988020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fca4618fcf07045bdafeeed426b1c02c78502d2479f5f116189cdfd5335d8e4. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/DEHC20988021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb36ae30db5b2b57c71aaa6768d912a7875f7cc3858ca56d659633eadcdc033. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:06:47Z), 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/DEHC20988023.