John Noseda (18 March 1948http://www.pblaw.ch/en/John-Noseda.html – 13 November 2022) was a Swiss politician. A member of the Democratic People's Party and later the Swiss Socialist Party, he served i
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 0xd6ea6fd0ee6323d0ae4656727ef03e37a49d9cf1ed3bde1d5e3d8475f3fd242d. 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/3679b5aa-13c9-4d38-bf0b-8dc71f0a31c4.json and https://artists.proofprofile.net/proofs/artist/3679b5aa-13c9-4d38-bf0b-8dc71f0a31c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You Can Trust a Man with a Moustache Vol 4
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 0x43e40e9a93f5b85cdd529bb07c4ac7ebc2dcbebbb8c7b9e1a9d38b122db44307. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLQM52000146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33b65e1c668f8ca128850383d008aafdb01cfedba72daa224ec70077e95730a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLQM52000147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb56287d919ca4f70f9db3cbf0dc9918c6c00a09732b1e8f6f0aeaf3f4be5b3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLQM52000148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6772ea4072f592da0b3a41d330123dc192b98aa882db6a4dae71eb3b58d0cc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEWN71700262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c883c9d4f7dab26535b382bb8f6f73a72696390b5c4d8abba4434085b649527. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEWN71700263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07f9d71dae2cb8870861454bb8da972c22a41b11673800d68b9ea63120de536. 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/DEWN71700264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd302514f3dfbee70ce5017dc847c48eb6a8f24543094da12f35fc64d8322cf. 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/DEWN71700265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cee092b2a1ab70b3ae6dc6002f1d4d1dbacc966bff47cafb736f130fbbea2a4. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEWN71700266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cee092b2a1ab70b3ae6dc6002f1d4d1dbacc966bff47cafb736f130fbbea2a4. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEWN71700266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1acf14a44d9f34119dfe6c1866501f1efb5f30e7f7434ad13e7c764ad82ad489. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/BEP012000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6777efa89c6cb3702d243550af81fc0f8edc0fc4d61407afe8fd00555cc530e0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR00Y2000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06c499b58a451072a1fabe251720ea8e7768a9fb65dda395ac9851c1deba1ff. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR00Y2000035.
Our Time Will Come Again - Prins Thomas Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b0fb983fad991dc085e7ea709fa019bff5438e41529e12dc37dee5b7866e14. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR00Y2000036.
Our Time Will Come Again - Prins Thomas Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f10cddd3e0dff82d95513e2d74a285949aa9d9000fc1615594eaa4bbe47d5b8. 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/FR00Y2000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b220f58b0cf33a9b96a4a5887be3db6af4b286067f5ae839d6272b2a049335. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR00Y1900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee5125f68b6beb4fc7c5de9d3cd538b27810eae6af14ff76caaa171b908e982. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FR00Y1900029.