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 0x73063df2d1c8ea09c3d876bee254cd809b35ffce1318721891aae428291be42c. 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/dfc9455e-cd7b-407f-a34d-056cb03ee1f3.json and https://artists.proofprofile.net/proofs/artist/dfc9455e-cd7b-407f-a34d-056cb03ee1f3.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 0xd801f23295298cf3263d83f3980c13eedbe904337e85a17391575fefb382080a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USA2Z2301148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee739d422916da62c88b769c0c9b0493e46d7c46aff84bbe615477bf1c7f0054. 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/USA2Z2301149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003d22b071d7a8e1782a9e0d788063597527793b7105e4ce953e53711ca45841. 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/USA2Z2301156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58e69329fbaf3bb886cd63ffb398a38ec03b625ab4377180384437df4348d1f. 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/GBSMU7663053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d71b1a8e254b9bfcee78a7e7f6de07df938aecad8e6147a0cbab120edd6866. 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/GBSMU7663058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18be8f2cb9b58c1ddf97d2fa878dd1ff2ed911c8b6273776d21bd6eec333ba1. 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/GBSMU6051024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1909788c857dbff052782648bf1321c6070ce92336a4dcd6c024750113a0f9. 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/GBSMU6051025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9f52597bc39e298510cbe136c76258e7ee2e56367e3e2ba39a402ee9590ae0. 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/GBSMU6051026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3070313ae38a383d6469a94df95875befdb4ed2c8a6e45b6c0d2a7dce5440e7d. 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/GBSMU6051027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648416bb4194d1adf349509b24efc5c3e381e7eb610908b8f5722964e3005bd2. 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/GBSMU6051029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5681b2b352be1558fa1b04ea4ade9e5f93594a0e6513dcca6aa0b697d6433f66. 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/GBSMU6051030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9970f93c40dcbec7bc5332303cc912553c15baa08261151cbb6a507b350c300. 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/GBSMU6051032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a30274a3c4d0b7dbe1904894117ff8854924ef3018ab8f9b6d5da31c9b4c25. 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/GBSMU6051033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323c6d8154d354e9862686e6264b5b13d97592cfc36c95d67f9fe146fa24d05c. 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/GBSMU6051034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f86ffdf6db57fd0dcf58c97ff7b2fd0d3ca471a95ee72d1a949f2a2a123d2e8. 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/GBSMU6051035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c83cd6e0a0feccde675066cb5bc1fffc3453c8b048679924f3c6a22958be3e. 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/GBSMU6051036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5178911b46a3c6b4414690d5337366ca71cbf963a57fe6b00a7277434c849e1b. 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/GBSMU6051037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1736fa062a633639ce69006c648448d39fdac7a29fe5b83e282c1f5e9c41830. 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/GBSMU6051038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543b8760267fbd5787da3ac98bdc6b06ee83225b1a6a8ebef6d47085c78e358f. 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/GBSMU6051060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54a66eb88de26c98b4d498af0e17966f62b5f37734d10e79864b36606b9febd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:50:05Z), 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/GBSMU4412166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd44d4a8456ee473babade746deb2ac07270bf7af62f6a18109e29effe98bc85. 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/GBSMU4412167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f22c6dae22abc080f22a4353c2c694535d09462748c119924fd05e73c11471. 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/GBSMU4412169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50cf0eecd9ddb19716260d8a558ab52ee106c6acc431b3d473da64aac31722f. 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/GBSMU4412170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ca36e98cbee0c20325a2957f87861b5dee9b8c5cc6224cf34ab14f5050633e. 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/GBSMU4412176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e054ba0a85480333a0bf97057d7e91d5d9efcfedc0a27b75dcf5498a493beb. 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/GBSMU4412177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06f6a920361494466b27eeb24426cc03acf517983af6cf60e0cac285a07e04d. 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/GBSMU4412178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe55e1d12eada9d98347f79b20091331011849c325ef7248007c2759febf6a1. 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/GBSMU4412180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9eb889782d0da2870328ed5bc76c7bfa4cd3ad88ee5ac3a8bd39c293b24d049. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA2Z1711370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2035037abf0a20b948a8e46c09073c21c3659917c42f88e77d47b7064ccd935c. 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/USA2Z1711371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa80370456106eae78fe098fe36c1f3fda551e8a085c2c6235c0ea9e162d2dae. 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/USA2Z1711373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbe6254fc9226fdb1483e9f40eca34acca4603fb3a92a297e1ab06509a812a6. 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/USA2Z1711376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fd07f5522d31cb228a001afa9c7420342b5ed84c3266fb3d6a857296f8f892. 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/USA2Z1711378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9710d89d2b8358ccf245317da01953d32ef99ae0e32cd7fa1772627e57185b4b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA2Z1711379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11518d35151c786f7e81b3498d804aeca1d43033c8ed1611e269111deee8ca10. 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/USA2Z1711380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1ff559aafe5812b72fb5392ffd8a0c312b83c11dcd5f5e09f3ad36fa04443b. 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/USA2Z1711381.
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