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 0x0f8c759e1a334add20865382e1634cb898a831c4e992a6b670d213be33ebdbb2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ed7f21b-4dc8-4cc7-8291-2192430d8534.json and https://artists.proofprofile.net/proofs/artist/2ed7f21b-4dc8-4cc7-8291-2192430d8534.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 0x9a536a9a7ee2892aaca2eabc5bded0f28153a22cc61e0952131939f6e7cdb3f0. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/SE5Q52000138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf727aa3f79db93ced60dfd2e0a683ec64059e7d2a49b63a30210aaa47d6f9010. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T02:26:54Z), 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/SE5Q52000231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c407e7d0f508cd55def9e3e26373dcdd71135521954c7206834dd1265c85d97. Chain 2 (Bitcoin): anchored in block 957835 (2026-07-13T09:48:24Z), 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/SE5Q52002627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014cd47007c5256dc519aef06432602bbe55afa406ef58d87a12d8308fae9343. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:36:39Z), 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/SE5Q52103279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd308a5c50bac5c6c8635357011a244aeb4f1eac5f4cf9d0e50d3183f241dbffd. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T02:30:09Z), 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/SE5Q52103917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7cb41bc8d3259c65050ba169e29bee802661fdb9bc315ef63ee98f56b4638b. 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/SE5Q52104487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacc55aa20e296c461b0358faf767598f1549dd6d15e43a627964c077aff77d9. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T02:31:20Z), 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/SE5Q52104285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce888b62f804071aa78803a6dbc4e5b87140f799a5a788f908817e69abe86bca. 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/SE5Q52200989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e69d59f3453d4364069e968f24ba1460acaf3329971688667ab5b29ab4bbab. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/SE5Q52203385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c4739af5e8ec729b2bfb5f65895ddd8f6a1407e37977494dc68775ec96bf07. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/SE5Q52203755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd39ef2affbdda2a1e0f20d8a59df747207cecefbbcc3a793c61eae754d52e5. 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/SE5Q52301354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415072400f852925bb5afc6418d06d610f885a81b9cfdc0e1bfb8c43c0808260. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:34:37Z), 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/SE5Q52301901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf700af326950161638d3b69c3e0ef3c3fbb5cf70c278cde5dda9f32736f8176a. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/SE5Q52301909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf168124af5ef1817fa1787270d37592720e797dc1c0ccfc371f14821018a4b52. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:53:38Z), 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/SE5Q52401275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc426421ee89d2d6bbc53796c98d82373a2b680f258ce332ba5f0e4af7d3a8ab. 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/SE5Q52403179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c12944a52c20605fe42e1565d2c44f3140b6c1fcda01caee2f7797f3acbe20b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE5Q52304595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5561d371b540758c6f7e8c56a7724605f0734f46dda31ee91b727bfd911e4ec2. 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/SE5Q52304597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9abc641afe8657ac00b3e02ee9d32cc68b744bbc866a3d75c3e7b8c250d0ccc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/SE5Q52304604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6adc226987e95d1d100483b7799f8a66a476dd376e5cc1765b52ac8f9972aa37. 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/SE5Q52304596.