1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x7a0ffaa824e624c62f974236a347ee497873dceada2afd56a244224a02a0aacb. 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/4b0d44b6-7b1f-40eb-bb93-8ef44b19a3d3.json and https://artists.proofprofile.net/proofs/artist/4b0d44b6-7b1f-40eb-bb93-8ef44b19a3d3.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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x0bd42f7aff9cae477f890297f95e11bbebe981c42ce47e6d3d8d00aa51d73414. 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/GBEXH2000135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75cf8d8a653cf9db38d2752099766c2a526073de97850424633faecaee88085. 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/GBEXH2000137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62028985c3d35282c59eb13eb052ed48e305e2c22081cff3a641f62b8c5f937. 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/GBEXH2000141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e69108a227d2ff62274a8df6c3b24734f915c391caef68c022ee0a89b7483c. 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/GBEXH2000142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9f94ebd7196bdf2d8a3d5c8dff5431167bb2bdd808f432272441be7abbba7d. 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/GBEXH2000143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d78052df6c523a1861dc6827d0a77b5c949ac8a432167dd121fe9cb8d84e92. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBEXH1800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3116a5eb34e4eaae5e9b4e07ce769945e6a98536a91ece20c6665682606648c. 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/GBEXH1800123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280c2ad9bd313a9443a5a58575489dcc0081eabde47029205b828b49fb223db3. 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/GBEXH1800037.
Simmer - Octo Octa's Bring Forth Peace From Pain Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232d0d38ef6ebec78d6584eaafe0f700f6265c18dd5c63fe00ca86008a008af5. 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/GBEXH1800169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d13e8731a17b2a6faeaa26e614853d956c6698e1d7b11120c2dc8a705a37c60. 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/GBEXH1600296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595f00890be41693307b85202fcf5382c13deebb3b2e4e1fb04630d031c303f6. 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/GBEXH1600297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4be736cc1d781236469b357db560dcface7cd93029e7665615d2883c247da58. 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/GBEXH1600299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c89964b77ca9468509d8c6ea3992ee3705fde1d227c42684e7222b63d6c79d7. 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/GBEXH1600300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67158f2a28cd77e930d9f24bc95210da51f91b79a194535e2e06e1e5e4eaaa35. 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/GBEXH1600303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cabc0142e038e7812c1bcf3c3c49e24cdfd9d280e5f9dd626a7772e968ee393. 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/GBEXH1600304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615b6180f0c653ffcc31dd8a85b936edfb5d13ce5f2b2ad95337fea796299028. 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/GBEXH1600305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0713d9d066b75b2cbf82a8914fdae34052ba44ad84f7524357cd3106c1d1f6. 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/GBEXH1300263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8815ca61895f0081c9e83a9654b147a024c8896095e55eaa99aec2588b34db0e. 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/GBEXH1300259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7bf94da3a7266901fc1823ae78f9902a831afd03be1f8138097b9a89d7a794. 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/GBEXH1300261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dce739014051253118e3b6680214729bdaec058c14d8e95d0662cfb7ddbb966. 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/GBEXH1300265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a0dca7fcffbdc68d14d485896199c06ce4a464cd0d131d3d3dc55fc1948fcb. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/GBEXH1400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8eadad1fb5338bd1060eb3bc99695c4c281f1fa9f9fd48267eb7f32e4390721. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GBEXH1300237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61bf8f05874f7c88419df819c3ec5a02446796e48b4da69f09a9ca6f0495945. 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/GBG7F1100501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba758837a42f4879287668d4c2c8a124d4a9fbcdb2abf8eaaa367d3aca0f2f5b. 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/DEH742336010.
Messaged Your Loved Ones (Throwing Snow Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d4f1883c0606c12bc700923ab7140dce70cb5034550469ddfde8041ef58f8d. 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/DEG932300796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cc771ad59418af525da8899125218662f141fad4e47f5348b9221b3fb94342. 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/NZBJ12200114.
After All This Time (Throwing Snow Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb863fe27282cb8c01b1e734a7fb3e80520b5a934e81c9c42ecca94926164e5. 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/CAUM82200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62028985c3d35282c59eb13eb052ed48e305e2c22081cff3a641f62b8c5f937. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBEXH2000141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6393fff60d58f7b9eb8c841eb715acfd0c7710ef4fb56a09588b49f61be646. 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/UKD991500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd34ac09c0dff5e883deb8683bfed3efdfa374fa3c68a7d05f0e04d9f2d9ce3. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/GBEXH1900580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc9c9e97f7dc0a3046d012684483a118e117ba96fb8a5ba3e207c2de7e4dddd. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBGLW1900027.
Simmer (Octo Octa's Bring Forth Peace From Pain Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495afe34b04b5281e1e31f872dc53de7c04233106fc6c224f2b84343c5fd251b. 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/FRX281723590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13733973a894eb5f8f9754efd24c4964b179350d37a8f49630179c3701b523f. 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/GBENL1902589.