thumb|The Blue Bridge spans the Moyka in front of the Mariinsky Palace, joining it to the larger part of Saint Isaac's Square with its landmark cathedral of the same name The Moyka (, also latinis
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 0xe35a60d930b19d4204dd4901934697b68330cde733e7e8616f4a45e719a71a5e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb289b16-35a0-4338-9da9-ee4eb961582a.json and https://artists.proofprofile.net/proofs/artist/fb289b16-35a0-4338-9da9-ee4eb961582a.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 0x097a63d34249fc22991fc7e6c9df61d45c009297aa4b8aadddbde558d6e47c35. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/NORYA1902030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48759ecda7a20eea0a6d0c6d1e06cbd2944d94ec2b1654e38ed0a656407840b. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:24:04Z), 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/NORYA1902050.
All The Things We Forgot (The Golden Boy Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb15a03f653cb2e3692ed60bd9b62afe598aa432b8d3d18e2714f67a89549807. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/NORYA2007010.
Kanazawa (Maybe We Don't Have To Go There)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60362a0a3b22d507a592c7620068a54dba7eefe7d4fcca6b6f0547aab66e0eab. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/NORYA2007030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2543436d492af23ff3146e22ee5d41644c53d01f876027a4c6b4330d4cb8fc89. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/NORYA2007050.
Kanazawa (Maybe We Don't Have To Go There) - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9c41c2ff663908e3e6d222369ce4aad1c08d2cc5dcae01001f79b62d8a3b7d. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/GBKPL2164545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d89ca48704b5b924a6746582c7902383c7794e26b9429d8e1d64551dda15fe. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/GBKPL2164544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99f58ab895fa417aa648788850b3d7724959b77f7dfba8c427c93954dc462de. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:29:32Z), 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/GBKPL2152774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7bad9137df56a7813982968e2087ecd181430a9f35ebeae2ad54279d6220fd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBKPL2164548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2586b3cfcc6b958097c3f81e13e510d4d5f3ff93b5f05141fd9a824f446a615b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NOTF62302070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97dcb72ceb46e99f72aa62a863bc9c999546a1856fb53978a542f22d91b020be. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NOTF62302010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39f629abecf816236fc0f2bbf8fbe8ed4806276760c588bc64e317794ef735d. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/NOTF62302080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a2714b0229e6f45ccfa8d8ba2dfe9c52045c6190383863f51bb6600ecca5f3. 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/NOTF62302100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92e7ba2345a56db1a29680de312fb1f5ba14809f01c4f0844965e66ccabe571. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/NOTF62302090.
As Long As You’re Here (Young Royals Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4b40a6de55f1ad13282fe127543eb9969029b251c7fb5b0ecda9f481db6d63. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GBKPL2144068.
Movies, Cars & Heartbreak – Heartbreak Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74806b472cbd915d877f939149ac8fcc28039fba92234dfa190ad16b46cae9f6. 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/NOTF62401010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ccf1e29511d63e82b5546844e5e1b7e314f04b091fdbd045d0de6cbe872d32. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NOTF62401012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77360dd42f7b47bd7e072070f425b417da905bd327ca82f52618051767cb9415. 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/GBEWA2500431.