1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb8acc07e3806de69b2b19b6099ca87058c1610ff7bbe4b1062bca798e8e89669. 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/19484e6b-3c40-4555-a30e-106c685f7b87.json and https://artists.proofprofile.net/proofs/artist/19484e6b-3c40-4555-a30e-106c685f7b87.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 → block OTSBitcoinBlock must exist at that height 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 0xbcd238b59542afc97d8d301c3b09e866e2bd38b9b89483014c8396d97c0d5381. 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/QZHNC1918664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d0788aef4c2fa515f4accd83ba536a7879014400451566efd4c9629fa7c1d9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CA6D22200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ee4cf778fc75e80ee723ab231227a38e3f94f60dc3ffe1488571d0373285f2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CA6D22200216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898d4e6413c40124d1846563c888fad9a3566b445b80fdc100a8977b5ffdf58b. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/CA6D22200217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4baa0fae24b1f51f1407b9f5b58dd6936c36ee879ed523b4bc7f838db3a7d00e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CA6D22200218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dca30cf58f4346b8c60e7daa1236d2faa5bee77390fcb4de7e5628ebcb86261. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/CA6D22200605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025c2c95034cc3a717f1ee098902f452db807ffb1d9a41361464347112c15b62. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CA6D22300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36385913d17a65f45f184ef4267f26419a51d00f4f7a50cd78c8af105ae2b1f7. 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/CA6D22300454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd1d1ca6d4f3a8a503ff750dcee30bb3e0c4f40cd01188da9a1f98a9d519a6b. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:37:29Z), 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/CA6D22300455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864ea3f3b62e8f6f7a1911d7d8d0e4e6b67dced74f4ef91f03590d6a7f7e3df3. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/CA6D22400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92eabc247babe37cd9d39afdb1470ca33c09b167e796a35951e978a2ea339227. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/CA6D22400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb248527f2f49f395edde8c691bf68c5b6ebd69cb2f5be4191421ba584f3d10a8. 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/CA6D22400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfedfbd6a029f880d262f33cd35d243bc2215a61adb6e9aed982db86b481ece51. 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/NLRD52258041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba3cb91b249dcc603da5dad783c6513ee49120240a73753b5e98f4b45b66f34. 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/NLRD52258051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c6df53c47b4dcf777ad83ca5d6c1dfe4329ec8c3304be968a0ad59b5cfb7d3. 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/NL8RL2431782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22875b219acfd0ce88fff5c45da3ba1edd8b25e61b6357607f5988e2d87301c6. 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/NL8RL2431784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fc9393167aa897d5a8a47cd36359bed6f1d4af2389974dec8e1f47ccbaad56. 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/NL8RL2429544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651fa45931d1703392570736663dae905c1f8b57de1ec7461f355933f45fab25. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/NL8RL2431785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fa5c7869cbe2a48b3d2b7d78e93746f6afe7a56bb5da22ae9216599f9cc806. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA6D22300051.