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 0x70913ed02e0e9f0f6bba60ac7de9acc01096aea872695ed4b043af27f0543d0e. 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/f4b008ab-a360-43bd-9d12-b4c4f049def3.json and https://artists.proofprofile.net/proofs/artist/f4b008ab-a360-43bd-9d12-b4c4f049def3.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 0x7ccb2c80542f7448893088f96581aefffbc1d5ebc0bc3c73434b63e62254834f. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/TCJPL2094015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b0648ca2322dd60a8c465863eb5f57a97731cc300073de97045459be74d34b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:17:44Z), 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/TCJPL2094018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e05c32f7282b18810760c4f6ed1562aa21319eb3c75aeb73a2f754ce165c845. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T13:03:01Z), 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/TCJPP2104939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea57753f45984ec893970a420553d3aa9576bb176f7fe10c1c8a068797f4a53. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/JPPC02110710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c83c49dd143a34972fba2d93911121d28fc89b32828cc2b76f40c85bc44f3b. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/TCJPQ2171604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c83c49dd143a34972fba2d93911121d28fc89b32828cc2b76f40c85bc44f3b. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:01:45Z), 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/TCJPQ2171604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe745044ed52e37797fb805971a15bf90e3c8b7ac6ec5c1c934b6b0511e9ceb. 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/TCJPR2257279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a757763554cb7bd433777a1c1e8987f2e72fb119c353a73a76627b6cf9f545. 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/JPPC02211305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea57753f45984ec893970a420553d3aa9576bb176f7fe10c1c8a068797f4a53. 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/JPPC02110710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22521314608d04344ac2d7efa541ae371ba067952b129b3055d0a7ec75ed1b2a. 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/JPPC02211310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c427dfb0ec80ceb2c15b7189473a1659986f836aa9d2b54a2b7dc6d97d29254. 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/JPPC02211311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5d44998d57c9e4e29e6cf4c1214c408f69aa55c234f938bd9480e993fbe2cc. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/JPPC02211303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450b28d873e88f0880c6bc14fbf9c7f81988bea2b473712da12e2542cc3c480f. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:16:40Z), 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/JPPC02211304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16719a9badc152b59a160748e28b63511a128dcc94908b6fff5430e56e7089ea. 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/JPPC02211306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1dd6990163d8b10fe537bd48d58a8331bab070173e9dd2105175825fafce57. 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/JPPC02211307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8affe2f853db4345f8371b3eef2552cda1970b2c1e8ee8d4e49f4f2ff38551. 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/JPPC02211308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22521314608d04344ac2d7efa541ae371ba067952b129b3055d0a7ec75ed1b2a. 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/JPPC02211310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ae9e4bf63aa3c254df0fca5944adaeebfad9eb815b7082ddae8c43ab09e0c3. 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/TCJPU2389278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b889cd07f8a78b28c106c7e718d14b7ea1bc8a34ea5ade55b664d9f731eee32. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/JPL542300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb003fc224a292d6998a0b58d92c6e9f10605b2a51be968bc1b47c59f9c632e37. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/JPPC02312113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ab707b01c71e9d3e7348e5d53faace8cd7fc59803aa4dabeb38c8d4f75a24b. 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/JPPC02412158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7f72d51a53fd99978a552fa596288780f41d1a43e02e70271fb2c023def8da. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/JPPC02413798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2bca2be2d66e0387f2a3f1d589e88eaf295937ce2ba2b2d13fd664b14b70ef. 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/JPPC02413796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb604cb144aac830af3bd7cc2b0054c42c547bb787bfbbf77a6890e4e869063. 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/JPPC02413797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeaeac9233a4f51d0967b4b305ad1037529e2f02a3a4b212c6846a6bd19ac2c6. 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/JPPC02413799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7233ab5bc86ce1bebd3b2e4fa4b0f4922cd1870f51d62e91188280f2efe54247. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/JPPC02413800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7f72d51a53fd99978a552fa596288780f41d1a43e02e70271fb2c023def8da. 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/JPPC02413798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea57753f45984ec893970a420553d3aa9576bb176f7fe10c1c8a068797f4a53. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:01:55Z), 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/JPPC02110710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22521314608d04344ac2d7efa541ae371ba067952b129b3055d0a7ec75ed1b2a. 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/JPPC02211310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb003fc224a292d6998a0b58d92c6e9f10605b2a51be968bc1b47c59f9c632e37. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:43:28Z), 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/JPPC02312113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ab707b01c71e9d3e7348e5d53faace8cd7fc59803aa4dabeb38c8d4f75a24b. 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/JPPC02412158.