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 0x150039a8b3ddc99cf87dd63c33aa09dd821ce5145418f49071d24f831c15e931. 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/1fbeb306-6fe9-49dc-b7b2-d7ac1d101761.json and https://artists.proofprofile.net/proofs/artist/1fbeb306-6fe9-49dc-b7b2-d7ac1d101761.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 0xfb6ae89c8b45e5eafb93cb7ba5b97bbe25cd4e1ea47e56b7ba6be7e5948331ec. 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/RUA1D1906926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ee8e3cb0bfaf5da28c171b90886a50d6ed1d614eea471661e1f441b978ba93. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/RUA1D1922123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645ffa87255b96421a8553a8769bd1cb399573c29ef4be809c72a9c948582c96. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/RUA1D1922131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ae5abf7ac86fe77660f1c72dc43277fb78176d5dccaa5556717c3ade4fb317. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:48:21Z), 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/RUA1D1922130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddf623c647b5983659541cfd82389d2139abcccc10c2e2e629700b60b501340. 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/RUA1D1922129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c7ef45ad832f74f2baa497f59771800dd12f6e808cb42f361856ddd7ed2779. 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/RUA1D1922126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471d18787407235700f512d3f29a301a053d68fcbf993037505791bf47774358. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:43:25Z), 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/RUA1D1922128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bf6e926387ea823d4939d088b72e6f6a6d2fb41b75b379f690e2a704c610ff. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:02:08Z), 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/RUA1D2275356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9251055ea268f30abddeefc88d287b2072fd7c2ab9bcfc71fab12bd18be691a5. 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/RUA1D2275357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d84eb76288edcc825d5c8ce75a4ce001118859b7fa7f28d1d8866a5edfa405. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/RUA1D2275359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b10317a0ed8b7f8b9d024a3d8f6a37a083b03a389e5ebc10efb7103bb1af06. 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/RUA1D2275360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca126db9cf34e32142efc24b0bdbbd38cfd10fb1f565d07fb87e0fa014b2ebba. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/RUA1D2275361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fd8537c162ff87da0261f1b6a938cc6d068312aa4d3101c0d193f62e2e6a53. 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/RUA1D2275363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a43f88780f67f9a42925d9c3d63b5241fe4e7bf2fc8ec093708019dd484e43b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/RUA1D2320666.
Live at Resonant Arts (Live At Resonant Arts)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32661c607b1d2a955c4b1053a9b547b95203a344cc7a9f5db93728b39ad6eafb. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/RUAGV2403681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08076f559211943107a2f952fbe91645aec47549d42ca46554294fed39190e1a. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:47:56Z), 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/RUAGV2410039.