Chilliwack ( ) is a city with a population of about 100,000 people and an area of in the Canadian province of British Columbia. It is located about east of the City of Vancouver in the Fraser Valley
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 0x9f7d861f880368ce276acc72d4e2066366e757b31961d0d41bbe4194d4017cc2. 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/687c2710-41ea-4263-be9c-f0b54ea6644c.json and https://artists.proofprofile.net/proofs/artist/687c2710-41ea-4263-be9c-f0b54ea6644c.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 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 0x7766c73ed6d3433477fa652e181398a1c0e291cff14081672db76f63bbe5c379. 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/CAL351900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f3711337f5cf505fb090d7732989f89d159ef12ffd75153de7a66962520468. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/CAL351900063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7766c73ed6d3433477fa652e181398a1c0e291cff14081672db76f63bbe5c379. 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/CAL351900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f3711337f5cf505fb090d7732989f89d159ef12ffd75153de7a66962520468. 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/CAL351900063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf116f755fb9605fed24aeec4e1fe7a70d8c2a1e42c7df1b4056709fc6473470f. 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/CAL357600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0905ace94152d72bd61f07baf7e0f411c15f59524ec1ae2f01eedb997e10a1d. 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/CAL357600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb30db7fccf2b2d06d7a7a07c6e4a3744f4cb2d9da34427ea6c0b8a70b0fc24. 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/CAL357600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154a7c2debe5ec4d94e8f805ab977f2cdb65d753a941f3ae58f1b4fe9014a9d7. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/CAL357600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4f3847c200a559750ac85ab1b58cca80a5418d6b7e9dc4bebbe4b6170a56d1. 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/CAL357800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c5fc89c32342931b12c0a95c6636e9eea61e4f79dd55f5a06c2488f5551e2c. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/CAS269900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db764a32a1c8852df8813206ced1e87da62c4c9c59cf92d7e5df5d3f0d5200a. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/CAS269900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78545eba210d7745056a5ca8f8c346db8a07c7037db39e9b5510a4d86a316a8e. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/CAS260200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c489e45a18204549d2c13035ebbe5f3bb3bf7f7de75e726070b35230f7a83a. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/CAS260200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559238f5afed666d336b816b73d44c09b8eb85be544ef25968a6f416f0df9d03. 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/CAS260500264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf271afa67a7dcb59984972907b569185c97d47c62449c7ae51d2bb013da5970a. 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/CAS260200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3565a29c014a681dddd0fb18b1433a49529dabd6b6f75f558971f092ecc24f5d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CAS260200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75a6e3fdebaf8d781c27134130a95f3052f43c2edc994d8a81be68ea7ef378c. 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/CAS260200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378c31fb2a12eb13cc0595851bb8acc820ea00eb51bb6bc570b304c1f0573c39. 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/CAS260200133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67247fff02a8825749c241cd44396816d7907bed82af25d415ad52b418c4b2e3. 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/CAS260200124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf271afa67a7dcb59984972907b569185c97d47c62449c7ae51d2bb013da5970a. 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/CAS260200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cede5bafcd7235453e318c2a1145d283d08b405eae760471efa01194628d94. 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/CAS269900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3108ec31ebb8b76b852561c59c5c3164b8adaa7446b551ff0690dabe22e04d20. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/CAS269900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3565a29c014a681dddd0fb18b1433a49529dabd6b6f75f558971f092ecc24f5d. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/CAS260200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75a6e3fdebaf8d781c27134130a95f3052f43c2edc994d8a81be68ea7ef378c. 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/CAS260200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8658a2d4b2a730f59929aa7db7859094fe9e5379e94613b81a97ee5350923c4. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/CAS260200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378c31fb2a12eb13cc0595851bb8acc820ea00eb51bb6bc570b304c1f0573c39. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/CAS260200133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee9233f1fa8d538d96a37df7c878d3ffc076352fb6bc7664a3e09cc915ddb16. 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/FR6V80795463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41951bf9e460f9a7bcaf67b4fa456ce82fa0742ad679427285ed98b279416e7. 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/FR6V80795468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f1fb6a6cf417df2b7ca5464c4f63dcdebeb276103f92b33caef55feb0f0f3b. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/FR6V80795469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0824b9db98245eb13995670037dba3c8fc30774c2ccab9e9562d95352ec939. 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/FR6V80795474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79f7be87aaa21d4b7a68cef972decaa771d032029418f53794d783f43396844. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FR6V80795476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f1fb6a6cf417df2b7ca5464c4f63dcdebeb276103f92b33caef55feb0f0f3b. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/FR6V80795469.