Daniel Champagne (born May 15, 1969) is a Canadian politician who was the acting Mayor of Gatineau from February to June 2024 and has served as the city councillor for Versant District since 2013. He
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 0x59677ed0ef1b2bf7837656c6b358bb6c8abe6fcced21440b4f4c2b53398b5783. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fcf5d31d-a05f-49db-b9c0-1616383dbb08.json and https://artists.proofprofile.net/proofs/artist/fcf5d31d-a05f-49db-b9c0-1616383dbb08.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 0x8ed5caf170c26f0aba63d2ca93914fc871d2390c1123f8cdff60bab50505508e. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:24:42Z), 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/AUQZB1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8f04b1c1df1dc9f830fcacfccd8566ecd9fa2e2753f878b1791f5147b3c6cc. 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/AUQZB1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61521efe2769a33182e84a2414538ce39b376ef3028d610b8c0634b33e6f96a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/AUMGB1300381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc1a6c9a9ac9ea5b1eedf1519db4b620eaf40d6e0277a6fba38f5708587cf7f. 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/AUMGB1300386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03edf3532b8e5684ea0c4b1705f849d0d84de14fac8ae0c034cb5387d7deaed5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/AUMGB1300387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54081dc0061b5d9f05de8305e1faabd5ac8b09359a82ec569a341907df05e691. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QM9A81601316.
The Coast of New South Wales (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2980f958d564723e1ef51af317eba09540beeb093c8d0976adcf8f847d9604. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:16:38Z), 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/QZ5FN2269657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47018af52ce14f03377726367d9ba04cc0aa99e66a49a6f49abbc37443ebe1a. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GBRKQ2218719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4d68641d99a8c9f4ff978f0360cb9fb8340def6b568e414478d39dbe4fd11c. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USLZJ2230003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146955b6aa81b39525a421e28276017ee0d388356371a0e6d2381e4535f072b8. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBRKQ2206170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1036e8ef6abe2bf87dba9757d478724be7cff23515f32d0f9d541afca7ffa37f. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:10:16Z), 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/QZTRX2116058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e42bea17e42f77185ae5bc23b1cd4fd38f65af095bdc635e2e2e9d29beeb44. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBRKQ2218734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388b21ab3189bf2c37af03f3562f74fc3618c7335b09293bf90ea5ead62e41d1. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:25:36Z), 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/GBWUL2341936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab185a0b1a8c88c3e3d171f86f47b3bd8bac30eaa272c1c240984b3595e7f55. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:34:19Z), 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/GBWUL2341914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b322a5828f1ab359ef2ff7226b5ed1175154a475012e7c266c8a1df8e70d5f9. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/GBWUL2341898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91134f683dba3f5f1059db1427c86880deeb03185d1f3437d871dc659de801bb. 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/QZFZ62505975.