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 0x615be2ca3c2e450203bc95131dd73f2473807dd4ca487c69fa334f80fde5d633. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c9cc3b0-6a44-4505-8a0f-9fbb2f9cd095.json and https://artists.proofprofile.net/proofs/artist/1c9cc3b0-6a44-4505-8a0f-9fbb2f9cd095.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x9b7a635507545d8e4c4d857af65ab0083d3b15fd59c5a9083661df873b276c1a. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:08:47Z), 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/DEXW81900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f56f2823e024ee7801e6705fb1cdd67ee1e122eaa2c74dda3bbaf244383c8e4. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/DEXW81900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60732256b740cae0d05fe647122448a9b1fb52d346805d1b040fc9c39e7f43e. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:43:06Z), 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/DEXW81900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e415e85d10677cd4ed3406fc0debe0b7ed4a8422732a60f6ffaa90271ec83b. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/DEXW81900025.
Hans-Jürgen / Gib mir mehr von deiner Liebe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d95da46afec2464d87151b8d571921471f8638bb951893a7a9c3c19c63b01cb. 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/DEAR42256091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda25c05c0cb7d61cd1ecab4ee4619f7f7e22e405b9d24861eeacf8c199f9c717. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEAR42299102.
Hans-Jürgen / Gib mir mehr von deiner Liebe (live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8efa98162e023235a1bf7d6022ebce09986dd6899315d7b9173399bda22981. 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/DE1JN2398703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a45405477df6e3359a3d1db884a570b7f30de51d1f89c20bed492a02253f65. 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/DE1JN2398421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da7a9aa80f6df072083bfd0019bcdaeba6ea52411516bd9a665a6108374ac54. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/DE1JN2398684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32df56ebe3322506b83cc5fbdfaa87ddc2320fd39b4e71c0ef3b7bb8c95442ab. 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/DE1JN2398495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cac5b81ec5567b3fc0e4eb934f8a8e47d4de8131c376e935f00911fad74c9a. 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/DEAR42435758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73500d289e54ffa492789f5648e8045f49263e085204551e30b1cc3b83db297. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:04:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JN2427018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389997625c48a5d3b98f3ebabeaa153a7250fc07e3701581d4c494f1567f7307. Chain 2 (Bitcoin): anchored in block 957634 (2026-07-12T00:26:43Z), 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/DE1JN2426650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6851f4e3de6f58c3d1f99b97a7d2f10d496eae5904f223753473b06d77cbf6. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DE1JN2426564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0f54717ca02834e03c193d56f68effb73a556219cb078eaedb8c5fa1f73ee9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DE1JN2426684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e66ac981e67a6e194f327fdc4d6674b4d695705ef9a3ea98e0a92717e22c9f2. 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/DE1JN2426546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0e915af648b6a6dbbb8a5e874df9e9519c9a276e9e7ba3e2940005cc5e624a. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/DE1JN2426596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204832d444722680ffb3b8ce5e7cf3556542789f93818c607e9a3a0aeda4e529. 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/DE1JN2495627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a4a8a9c729ee707fe5bf85aed40481ba6c425716a322f43ac2a01984cfd827. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:30:47Z), 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/DEAR42427367.
Tüchtig Album kommentiert (Die Storys zu den Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2b8a7a00b39fa697485d47d46a3b6f0c7d768c6d369a788db67610c2ed465c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEAR42560427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbd76c2a2d2360923ea7a9ef97a196ba34c5eedf4320772948c7462b2d59eed. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:27:46Z), 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/DEAR42558268.
Ich spür Dich nicht - Live @ Muffathalle mit BBou
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fb619fef187aea26589f76d37d3c5d47a6bee59dec195075d1ce1dadb14060. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAR42560463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9f6fa3e81bf11a4ab356166a97f483917b79f039a1adee3059aaed00856992. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEAR42554510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd7d49ea624738322d56bd9b21b5ce2f01dfd98805cf944013f028538fdc5b1. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:09:53Z), 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/DEAR42514107.