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 0x5144f28842b90a9a721f8c59c2bc2a5d4e3d966e23aa71a6efc80fcae6586b2e. 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/ce223175-e39e-490d-b812-e0d3ea3fef6e.json and https://artists.proofprofile.net/proofs/artist/ce223175-e39e-490d-b812-e0d3ea3fef6e.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 0x0eb46f3a7ae0eec928f6bc32dfb71f31e1fe930bfabfecbdaec3c28db98338c3. 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/USHM21985633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb287af8ad1c3e46fa07af54d01298553124ac1fafe38fa7250d6a286f575834. 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/QMFME2085117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb287af8ad1c3e46fa07af54d01298553124ac1fafe38fa7250d6a286f575834. 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/QMFME2085117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3d267bf3029c84e2543325225909dfa3442bdc363a68d434471af2005c95e0. 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/US7VG2143191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb13395fdff49d0bd2a622646899368d89806bb4033d9c59ff86d7480db2fb0c. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZHNB2143744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead5215683254d3e8292257a645a8daf4bb17960c688a1430f123a8257c1a267. 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/ES71G2140182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6749c17af3e180172bfe784c876fe4ac26b1fe7302d56713d460cb48f0b5ddb3. 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/TCAFX2188557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37c55f04850a782cb7aa948bdfd59c68f84055dc1ef8073921421eed8709984. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZS7J2231885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94060aa390d3628da008ecdaf3a91356fc8b50fb707829362416563a39607ac. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:49:16Z), 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/VEP039100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65946902c01596af4227709794b0863b66766c7154e55b1271c9341b0d4152ce. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZQAY2373130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb128854448e7e80acb80e7f2c44601ec01960767a4ac0141ddfc0a6a1b32a1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZQAY2369732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7923d7d8479dc55f2b13e5a5ee26d52060a0511307f09691392034ebbea261e1. 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/QZQAY2373564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8783931c08633b37b78161714f6b5586cb29c2117bd2c34b50fd61a106853e5a. 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/USA2P2339727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfebb50c098e18d8f1f3b3bb3978590aa14e4fb49d9ad814025f867e22358af. 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/QZDA52581521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfebb50c098e18d8f1f3b3bb3978590aa14e4fb49d9ad814025f867e22358af. 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/QZDA52581521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a16800eedf1f531069cb23d3d086e8910a98a22c81fd18cc58c79e350b60f9f. 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/QZAKB2534820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f5d1b72cf9c161fe656332969438af0d458f3c9a0f1def3ad95c8dfdb41073. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZWV32441635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bd9422d19affd2504a854dbc269e7b2f926a60a877e647d3c92bf5a49fe145. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM4TW2254554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5f5eaa27c0ba3402f2dd72332a27e011a3dd2f5c3e7b36dc3fa44dd15677ef. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZNJX2164914.