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 0x390036f93b89e7ca0999519fa9bbb61c39b0c63296021a868c287f73d4ec34df. 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/014369d7-e9a2-4664-93df-0e77d3e9002c.json and https://artists.proofprofile.net/proofs/artist/014369d7-e9a2-4664-93df-0e77d3e9002c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Folge 2: Das Geheimnis der gelben Narzissen
Teil 17 - Folge 2: Das Geheimnis der gelben Narzissen
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 0x58365986d78b1d49288c78bf159ae13229c5ca8018d054f86d18b38b17a039a9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12101587 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c374863e49ff6e1714f2b4da2286c92f12b228ac1e1d26b4586b7d5ca05dbb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12122983 — a six-check JSON result.
Teil 4 - Folge 3: Das Gasthaus an der Themse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2127454ba8487eefaf784001dc7918deea210d9cfaea212e0a5f9f60b5d4dc. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DEUE12123089 — a six-check JSON result.
Teil 11 - Folge 3: Das Gasthaus an der Themse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe156fc44e2fca6a3c8ebe6088ec2f40e6486e5643a9f8980679821a11120fff4. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12123096 — a six-check JSON result.
Teil 17 - Folge 3: Das Gasthaus an der Themse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1c726724d0d371fe661a6494ed5b723793343c721ebc662d4c779524663880. 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/DEUE12123102 — a six-check JSON result.
Teil 18 - Folge 3: Das Gasthaus an der Themse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04c30a266239e5c20750ca291198bb0eca4605d7bfa00ae27bb405b7dd1f62c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12123103 — a six-check JSON result.
Teil 1 - Folge 8: Der Fälscher von London
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb53036ee5b1466f1c144623a7c051174ccd0138d3ac95563826cf413c29967. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12101466 — a six-check JSON result.
Teil 4 - Folge 8: Der Fälscher von London
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fa30077dd3a6c06bce2328696e5b37e5ce676e46d201c3efedab98cf3f0563. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12101469 — a six-check JSON result.
Teil 8 - Folge 8: Der Fälscher von London
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e0354f2b98edd0c9296003b4b63adc12a588267477251c2411f65e7287585c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12101473 — a six-check JSON result.
Teil 16 - Folge 8: Der Fälscher von London
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826927777413b933bdb5186f20b5109608058de3ca4f459902d9d757e4b3759b. 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/DEUE12101481 — a six-check JSON result.
Teil 11 - Folge 7: Die Bande des Schreckens
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7c23421c14e5dc2813a69243758aad238cc26ab56f32b9bbc7d8dfb1655615. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12100559 — a six-check JSON result.
Folge 6: Die Tür mit den sieben Schlössern
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8867421be2dc553b7d7f314eb81a340abc32d1df0586982c240d035287b8cc9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12100807 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91676970c96b6ca61de9eb6e58fcbd9e0bd28db907dc28f25ec8f8f275eb83d1. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/DEUE12100810 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b4aa3a0f573dcbd7be273159528d06157939616f8b81a5d271da2f5826f451. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12100813 — a six-check JSON result.
Teil 2 - Folge 1: Der Frosch mit der Maske
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470c09c769fb695e2fa2e734aa13a426660495103a943a86169c7b314b1a1209. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/DEXO72042214 — a six-check JSON result.
Teil 8 - Folge 1: Der Frosch mit der Maske
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20839e545afa1ba6647388c7a3e96344413d9294d5a5a8d57db0933136916a36. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO72042220 — a six-check JSON result.
Teil 9 - Folge 1: Der Frosch mit der Maske
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc1dfaa16eb84276acdd137a37e7c87d3510831f8851c4f95c97951feb29e52. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/DEXO72042221 — a six-check JSON result.
Teil 10 - Folge 1: Der Frosch mit der Maske
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316482dcea635f91cbd7ffaaa84bd8ddeea5121f40fb4869b482acc16a35c044. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO72042222 — a six-check JSON result.
Teil 11 - Folge 1: Der Frosch mit der Maske
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0963da831d6f786873814a1ae3b003039089cbd7b1d88eca381e2975f97407fa. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO72042223 — a six-check JSON result.
Teil 12 - Folge 1: Der Frosch mit der Maske
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03acdb9504c5196cea8be2a3c282686a51c683d27d326c151ff1279606ff017. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO72042224 — a six-check JSON result.
Teil 16 - Folge 1: Der Frosch mit der Maske
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb37e9d93da53533bec2b347f85fe8bb134797ec35aa549f6427c7e25e941e0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO72042228 — a six-check JSON result.
Teil 21 - Folge 1: Der Frosch mit der Maske
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163bc15c57e6910a92ed98be2af7ebe1f984659b72c0347a61a45d3a085c6807. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO72042233 — a six-check JSON result.
Teil 3 - Folge 11: Der grüne Bogenschütze
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8ea355d1b1bea1499bcb3611dd2c752202ddb645a71de1f2639f0fd20aa2d9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12122795 — a six-check JSON result.
Teil 5 - Folge 11: Der grüne Bogenschütze
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeccb72b1d787d6cbaf059bfa8ae8f4fa86c2065445e6ab3c402e26797302445. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12122797 — a six-check JSON result.
Teil 6 - Folge 11: Der grüne Bogenschütze
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74687da66b2ab65c35f798eb2fae99ac85f5e0fd9adfa1c5c28df4454f6c38f. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12122798 — a six-check JSON result.
Teil 9 - Folge 11: Der grüne Bogenschütze
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d366d4a2061e565a8d99227c6ac70dd855e28cc9bac7d6f949b59170c2bc8d. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/DEUE12122801 — a six-check JSON result.
Teil 15 - Folge 11: Der grüne Bogenschütze
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84486a27268f7ca00feb59da58679579b98b341f5db94e248ee699c0e4678d17. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12122807 — a six-check JSON result.
Teil 16 - Folge 11: Der grüne Bogenschütze
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fabf37039cd647ac7d1f046e4bd0669a2eb190620a188e0c56ef8d3a06ff00. 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/DEUE12122808 — a six-check JSON result.