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 0xca9bd0992bce0751be1451caaaa22c714b5dc5efb1e0b9b39425b9e8389c1ae7. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8cf27e5c-ef2b-42b2-8105-8079c41c36ba.json and https://artists.proofprofile.net/proofs/artist/8cf27e5c-ef2b-42b2-8105-8079c41c36ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Die größten Bierzelthits - Folge 3 (32 Blasmusik Klassiker)
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 0x8aff4d449df4ccea557090e22220dd1c3a9a35419e4b2d3a3a43bee7f3b9909c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ATT250605510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672556cd436c51e8764b6ce0799456ed05173562df22cb363dfcd597eeaabda7. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ATT250103460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5686fc6054396d31ef77b772691bd248d695d53c2cee7945b0e1fa0674b5d7. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/ATT251101430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17a76b800bdfcd02c804df6689ce333cf3d37f0198122260e328f5608d72cde. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/ATT250405340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efcca759e0c959bcf53fbb7e2c8c264961525129370ad0a67f0cb110fc2d6bd. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ATT250803380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a2b750710cfbdd260e5416040ecdcea5f208610ea4177c477f5bb53fe59e86. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ATT259910100.
Wilfried Rösch und Die Original Böhmischen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7c6881aad751bf1c0b7480ff6cd63d57885170a37933a9b8ab90a5ab1bb556. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ATT251209120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ad6b7f428c95b6865ef1de55b0653686896cd2e243f3ced395fd619b2850dc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ATT250303890.
Anno dazumal … Eine musikalische Reise durch das alte Österreich-Ungarn
Vergessene Schätze der Marschmusik - Märsche aus dem 1. Weltkrieg (1914 - 1918)
Für Kaiser und Vaterland - Kriegs-Marsch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6d7e3493f54e09161f5340f680a3a9f245a2bab93166d1d9149ce5932eb289. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ATT251702310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d64aaa35f8a7d2c60aae90fa44558621ead47cf7438a2140648d5b5564b2e9d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ATT251702320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4182fdecb230361066ea31a5ce5e3721e2dfb67cf61f0487ea2355aca1a52bf9. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/ATT251702330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae07c7ccb2eaee02ad6f1bd78de8ce50ef420538c8f1992861330fd569ed6f6. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/ATT251702340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb4b3223a32dda4ec270c69e7cef8c9671b474e65b5aa7edca37f02ed7aeca6. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ATT251702350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fce22632a1511d7461a7a7f9747346d68fccb36d1a89ec262e175a70e21b17a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ATT251702360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87857d22465fba0d199a1afdd5c9375c2aefbe2e12786e97023499037f0d2a30. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ATT251703260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4baa8feabd9af88a2b287537cc329cabaff4cacd82e5f66bb1ca0ccde8d5508c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ATT251702380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38afe5fe97696960a7291c711f3dcddb57853310dbc46502ff8ef4fe10850c13. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ATT251702390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709bf64ed4f4a413d546735a24f13fbc379daa3b177d5c0c40ab8fbda5a2869e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ATT251702400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50053f929b90f2f896fb72377eaf0d3bd02104cea8a904679368baebec3f9df. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ATT251702450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416deef813934c317316a4d1b705fe393f1af92321d5224b68beb23981c3bf57. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ATM051221003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805c1281d2e132225002252bbae2df3cd7149e945d28b269ffc68e1249d98f3d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/ATM051221004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e0dc4d9465ed9bff02db0e128908d75ac3008497f3e7a7254d788c735d37bd. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/ATM050900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb04a4307f4a5be800bcd021937dfaefbbacf6d599e9ac2d50c56ccbe1f7bc05. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/ATM050900015.
Historische Märsche des k.u.k. Infanterieregiments "Erzherzog Rainer" Nr. 59
Frisch Vorwärts! (59-er Regiments-Signalmarsch)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9322ae95e666f4dc22d16eb4fcdd50804d11d37edf6d11c3266208f3517cd31e. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEN120402524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad94b441aa73aec9cf19226aacd330f8380b95287c570c5c4c9e75cd1cd205ef. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEN120402525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e533b9825f2c4b94638fd0d98f36148cebb1639c935c091b14df034050be12. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEN120402526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770bd4945f346515077f927ce1422cb7965cf8a7159601a51b7c89e05db625d7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEN120402527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874f17c0ea955fa65099e0dd4cf9c29a5cc20670adb04b181ec1aa1af36ee547. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEN120402530.
Bürgermeister-Marsch (Freiherr von Gieslingen-Marsch)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af30ff5e8dc3f81271b0229aab593017e9451f36d67f343d4e95164b792ddc5. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEN120402531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e56e4d6ddaa637af5cc3d5b752f97260ea0625ec0c2e1f48461b3840246b3cb. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/DEN120402532.
Kaiser Franz Joseph-Jubiläums-Marsch - OP. 45
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049cb816154bca5d6053dfa0d4b4c7f5bc9e63446aa7b6b5c92640d17ffc7fd7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEN120402533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb476d0dce6e4454d61986e440361ad8096135f80378b12891d3414dd2b390b5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEN120402534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fce0e9eb9326aa64b55a87db09dac04a342d40fc1c1b9c75ba3bf29da523004. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEN120402535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c40d16514c759e9ff3f0b5261c4dac105db73b8cff112a7dbb81427481db40b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEN120402537.
Historische Märsche des K.U.K. Infantrieregiments - Folge 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65733934b6bd3d7c1f24441567b49b7a17711fda4e63362482007b5146dabe07. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ATV110644003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd4399998829440337ec9bf3eee169e69c6653b13f75e48e87b394fa03f0269. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/ATV110644004.