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 0xffd7f6658f221ade373996de55ca9a3810e8db294c93de3ce8e284ed4dd7f3ac. 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/613f861a-1b8e-45e1-9b70-d991d1eb1784.json and https://artists.proofprofile.net/proofs/artist/613f861a-1b8e-45e1-9b70-d991d1eb1784.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 0x4fa871a09bda57c7c575e82fff2d3008a205a2409a6eed35ea966545d86973cb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZB4J1866411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5633db19b6e08c6ea397da54841c3fb0746e82956ce7f892ede5b9655527e9d0. 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/QZB4J1866412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6aa9dd00ab5e828496e4da78c42ba1db8de88f592cfed08092ab0681f68edd. 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/QZB4J1866413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e3477393cb87871c3744884eba3b414514912931b2c98936e90b96d4dfd8c6. 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/QZB4J1866414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b051f430c3ca9e54b840275aeda990ee13e5b91f6afdf2996b91d4c4f11329b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZB4J1866415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810bd2f0608cadadc2e8cff56291253a39f1f845fdcaba2fc3894ac8f474bb5f. 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/QZB4J1866416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719b2a74277fddfbc8f471e25d90f1fa9825fc3dafe499121121adf14e78af74. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZB4J1866418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e48b4ca3b39d9ba63a4216649b2b2f6976414130ee0582cf4f1a9dd7f56c9a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZB4J1866421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f79fb78a59b23ae5eced54df59392408ac4d09206373bd3daf98c8471c1e7eb. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZDA41863665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840fd6400c12716fabd49eddd0d66b69a39f205404ab04146b52965cf4a8f16d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZFZ62237097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cfa57891a95bba4a5efcda9f91002dc8e330ea64ccd240299e8acfceb567d6. 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/QZES62221651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840fd6400c12716fabd49eddd0d66b69a39f205404ab04146b52965cf4a8f16d. 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/QZFZ62237097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2635358ec390ecb427ebeb264b6a0854120a266a3a47a8d4676df835d47b544c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNWR2162494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d1ddfec54a5052e2c3d24b8a21ca56bd2503ebe4296175d276b5db461e6857. 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/QZFZ62011436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc8c4d6aa66e099ee759252aec454194ed0e13d0e5406deef57e970048fc748. 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/QZES51860708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe238f3d1d05934a995daf27e67d949e8d347c8547a5c2acb6b30dd913b0ed16d. 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/QZES51859723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72917273cc35d92639e98e304fc59ec7f28a2cdae60176dacca34e6cae1eadd4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZDA81826724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2082bc1b611ff550eae15db594e87bbad3308cc59a2c0b0fa6562df4c3179bba. 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/QZDA51847395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee81a7eb10dfc57f5f7d2e9db670a3a1c538b6a2803ec8e745bfa10cc1c290a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZDA51840119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b569ec9bef8fce3ed1b0aedfd5d00aba46ef0b190325fc15308e21609232f2. 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/QM4DW1886826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369f0641702794f49b471f263b07f83afe28e3172ac40cb959273153221ec3b3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZAPG1874624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a240592b83397b30ea216917693780d6ba74e1b60742c170397a6994a8c1b06. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZ9Y21777393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5436d8bc8cd5e29de4b303d944715b131c7ac0d35dead2bf88a8413863365218. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CA5KR1576758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc61de31f34835d3b595d4a93104e803ad44928ef069fc7593bf3ed3622eed5. 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/QZFZ31993722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff80943030c42f1bb0a506cb0000d2c0d88a2601a0c3a31dcdf13ff007615165. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZFZ31977413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46828063ae33cd76ce70bda3817cece443570549cd0a6c85542294f03e84d8b. 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/QZFZ31993723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847ea9bcd0dcc109d8633253a6ef91714577fa9f1e9e88e5682e3bfb65f44118. 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/QZFZ31993724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431f7d22a76d2de9720caefbe5d33402be77d4be792d8463163fb091ede6a015. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZFZ31993725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3feb39830e7b355ecc098844caf139a114c9a350fa5c756913bee4cf445cf31. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZFZ31993726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817883b324d5804d355ee4bebc5b3ca96edec6b403662ae93377c2498050b4dd. 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/QZDA71968982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6058de1dd158bf2e135540a296c68e35953b92efba5e0d04c11ba347e9422ca1. 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/QZDA71968983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1552d78855bdb04ab1a0239fcd1ac1ae17ad3aff843a6c24e89a2be38828c65. 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/QZDA71968985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7132c167822f6246e38dcfb4b78fc42d45ae0672ea04a911a09bdd96711719aa. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZDA71968986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1997cb52ee90cd9dd261cfe3cec265f59a85905d8359c251854805670e970fd5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZDA71968987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac81be37bb6f4eaf129733f43258778610ce5677f0146a54a40653c31caac5de. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:57:40Z), 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/QZDA62069386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd073d0710d569be4ac4c63fe190705c6c7bcf19d9933afaefd0783fdf87b071. 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/QZK6M2047714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb913f446760700dceac372658a08d87a316bda9d340a0c9008e4a7452f6249. 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/QM24S2004998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307289a455d362c8d4e4b8fa5be530154ca61ef5dbc73e888349de7e6b5eeb53. 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/QM24S2007372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8337706cac54e1a90c85547b51fc9178bf0b63e1e878917499153397014fea24. 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/QM24S2007568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02f1c6b6a27059c3affb006c90499ce53c93da7a4553b3fcd9cb650f7d71388. 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/QZ4JJ1826902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a2126986056075c72afaa74fb9ad5357d097d96e373013a15a911a536daba4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZNWY2324589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e4a32a32822a21b8e157b4c498d6a7708c7a379246be68d10029cb278a482f. 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/QZHN71945694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307289a455d362c8d4e4b8fa5be530154ca61ef5dbc73e888349de7e6b5eeb53. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM24S2007372.