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 0x97edff363e3ebc19c6c4cf0322db6510a4b966df9ee503deedb388423d657446. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7e9e6e3-e6fb-495e-ac20-cc770c84501f.json and https://artists.proofprofile.net/proofs/artist/e7e9e6e3-e6fb-495e-ac20-cc770c84501f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kapitel 01: Der verletzte Kondor (Folge 22)
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 0x902f9704e7440afc0b734619214aa3cf0213a653fe839a476fa10832aa3446f7. 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/DEQ022115331.
Kapitel 02: Der verletzte Kondor (Folge 22)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2862fe33c9bf5936afd96055980666d88dc36ba3aa9f663ba70f11d4b03c8d5. 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/DEQ022115332.
Kapitel 03: Der verletzte Kondor (Folge 22)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb96ace15e854bafca76581e14f4906f39bf6681865434e8db17f9b959f24f3. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/DEQ022115333.
Kapitel 04: Der verletzte Kondor (Folge 22)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6057cbf4bd490a924876ba5df3b80e35ead86efe8c572ca956a254c1583d5a7f. 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/DEQ022115334.
Kapitel 05: Der verletzte Kondor (Folge 22)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87aaadda2c5d440cffc1e46620885004802399a4558f91a054780af82de0e03b. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/DEQ022115335.
Kapitel 06: Der verletzte Kondor (Folge 22)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af072421d88213f797eaf33388e09ea181e5b8c6e554c233a53813a702be13d. 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/DEQ022115336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7017d28c61245925fe3512c195196157391432bf930ba1766b06e4476b5f8e9. 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/DEQ022115337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7693ed4e549c9fd02e6a5b542a70b406ab127a3a3a41cc70671741bbb3dc2e4d. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/DEQ022115338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292ee3f81e76c8299818549add0cd9bbf54feb8ebe97e52014e456b209032b02. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/DEQ022115339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b0c8799a6f52732ba3d6683839955baa94b3b2b9b6f330839df8df9062fd00. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/DEQ022115340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1e1ec29e690c4890a18d63fd86a5a8428b5eee1245358172b6e651a7f6f160. 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/DEQ022115341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618b132115db07b52da22ca6ab677c5f80ba61035114d13fcc00ce435421d8f3. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/DEQ022115342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5e15df4ca5b9236f582f1b306fd26cde7877286e083610d6af2c269ecf1f13. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/DEQ022115343.
Kapitel 01: Schatten der Vergangenheit (Folge 24)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df826561ea76af4328dbdd0bf4d585d11e2f30a8a9d7b1eef70f8b866b4b994. 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/DEQ022115344.
Kapitel 02: Schatten der Vergangenheit (Folge 24)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06d8ce063afd47cf8abb427d2e3881dda0da6c686dd27a88c980d5de59f48d5. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/DEQ022115345.
Kapitel 03: Schatten der Vergangenheit (Folge 24)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69a1e7e23e3f4a3f0a9ce49742f34117368987f0f2b317425259950a6531984. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/DEQ022115346.
Kapitel 04: Schatten der Vergangenheit (Folge 24)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ec966c5de4d05614edfd2f567439521c63576839f56e87ea51c485ba6dcf15. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/DEQ022115347.
Kapitel 05: Schatten der Vergangenheit (Folge 24)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4492e444a4d1bdd39383cbbe1ae3864356955102aef0ed8a774c240a35fdb8. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/DEQ022115348.
Kapitel 06: Schatten der Vergangenheit (Folge 24)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0d5b7236bb0845999b692c1cd96c4669c6ca034e142e0312cac736d8977795. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/DEQ022115349.
Kapitel 07: Schatten der Vergangenheit (Folge 24)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b0b0120cb320b7e45b238a7862660db6c788a768ce7bb37224c65168ade542. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/DEQ022115350.
Kapitel 01: Der große Preis - Teil 1 (Folge 25)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a408886b16745ddd1a3726066834a8ee56138c7ad99252f51b99a441598327. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/DEQ022115351.
Kapitel 02: Der große Preis - Teil 1 (Folge 25)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114775d785009dd82d4e3f0f4489bdeb07b71f0a9df9595ae136ce071c795fd5. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/DEQ022115352.
Kapitel 03: Der große Preis - Teil 1 (Folge 25)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9457a972c2cc58bb2f6e6a36133ea06b2a981405bcc0a2ae39b2ea3e74ad197. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/DEQ022115353.
Kapitel 04: Der große Preis - Teil 1 (Folge 25)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965fafa2019bf6ccbca433f73f1136dad077c4f24f08d0f6d5019e6cb89ba4de. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEQ022115354.
Kapitel 05: Der große Preis - Teil 1 (Folge 25)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8dbffd682390163910c79d1b824a884fe9e7e80cbac99df18552b73c1e8a61. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/DEQ022115355.
Kapitel 06: Der große Preis - Teil 1 (Folge 25)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6527331bc025f845387f129a9daf612e376fa409d96bd4aed85160918aab7bb. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/DEQ022115356.
Kapitel 07: Der große Preis - Teil 1 (Folge 25)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192bf9bb70490dfa31eb7c541225c7c0b8b1650aace876edcbdc46d2ec246454. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEQ022115357.
Kapitel 01: Der große Preis - Teil 2 (Folge 26)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6fe109632eaaa9b0a73b2f70039f0a3b11080ec6c6d50d6f5312db26461a39. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ022115358.
Kapitel 02: Der große Preis - Teil 2 (Folge 26)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f269c29cf5a32e5dd774c154abd24971e5763ceb7eee4f40834783cec132f3. 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/DEQ022115359.
Kapitel 03: Der große Preis - Teil 2 (Folge 26)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52bb438387ffed7b944a220e55a1c17c9bc5ba9803a5e91fb668100f37d1f96. 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/DEQ022115360.
Kapitel 04: Der große Preis - Teil 2 (Folge 26)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0fc5fed13a0cc321f5abe0e441c21772da6662cba33d57b773211546757599. 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/DEQ022115361.
Kapitel 05: Der große Preis - Teil 2 (Folge 26)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af2552257e6235ef0f0b062489a2150ec1cc40ea727fa2c09a3f3991c3ed060. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/DEQ022115362.
Kapitel 06: Der große Preis - Teil 2 (Folge 26)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87086bef4c5b78736629af0b9250e4a98a67c0995b070f8c45b70ee09619f6bf. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/DEQ022115363.