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 0x5d394ab325a5106059bdd816b6c4235316675e60252c68fc88588e5a1c2f078e. 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/68565a52-195b-4962-9105-a5bd22592b43.json and https://artists.proofprofile.net/proofs/artist/68565a52-195b-4962-9105-a5bd22592b43.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 0x559c4bb3807f8d34b88f6de808da93be2ec17212d1df1925d81382a9eedc4550. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USRH11604004.
Ngani Tröma, Pt. 1 - 2016 Remaster; Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce92acfcb27e21da046aad8833800efc9ccd006c5471bbf4420e1fe551324ef9. 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/USRH11604006.
Ngani Tröma, Pt. 2 - 2016 Remaster; Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ba765565508cfb22765fe13dbe9cf7fe2c453c62cccf730cf71c90c187e160. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:06:55Z), 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/USRH11604007.
Chö Chendren - 2016 Remaster; Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0ae5659180015b651d3373ac5b4e8795b357a7d533364f6c9570e3384b5e50. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USRH11604008.
Kangyi Tengi - 2016 Remaster; Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2fac39d38ecb9a9210fa8d768e1869f27ef8cc85042f3535ed77e72a561e15b. 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/USRH11604009.
Ney Ogmin Chöying Podrang - 2016 Remaster; Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3caf036b604b984283bb09667fbea9a118a9cd3e3cd7955b46cff570eab28a5. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:58:13Z), 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/USRH11604010.
Leymön Tendrel 1 - 2016 Remaster; Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8d32e4ba0fd842d2d8a5294d72a92d8c2eef017f690e8899fbe09dabe655ca. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USRH11604013.
Leymön Tendrel 2 - 2016 Remaster; Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd301ab8d8ddc041bd2bd834e23ae6621cab2439482e09150eabeeea645a164df. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USRH11604014.
Nubchok Dechen - 2016 Remaster; Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2a6392fcc9958f76cbc03223962df6e72485f59c3b7c267d323d92fa7da9f1. 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/USRH11604015.
Senge Wangchuk - 2016 Remaster; Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b04890f2b3639194e1e40f00b3b5ab041187069682d5ca3586b2488518415f. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/USRH11604016.
Dechen Monlam - 2016 Remaster; Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a859ddf7b3cd849f56af008362b7173e3e6e8017bc58e8450fbd4f0a8c96b40. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:48:14Z), 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/USRH11604017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab0321244d8c28952f33725daba9589f8041ebd361d5d95860316ce185a1d33. 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/USRH11604018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107169275cf18812374195c9737e78a7011d54556a4873406c183f73dd9354bb. Chain 2 (Bitcoin): anchored in block 957842 (2026-07-13T10:08:30Z), 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/US6DR0400681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bacbf4949370130f35d1b07ddab6e9c27cc19a1dc00a397898f7bdbd4d0c75. 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/US6DR0400682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f06529dc99fbc3cf2e7fa0efb71385b65eb0f83fa711350fa52d235649fe14. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/US6DR0400683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb95584141471682a7e9c4d875beccfe26addcfe6e046d05db7db0b89d4a8058. 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/US6DR0400686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958d2a98854b224496ea6e3c7f838eea115b8dc1d9691bb1b49bc9c1773ded20. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US6DR0400687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6b309c9c8be0a143af31b5ed4d35e8ca00806cffe672daa3b488b9654cdd2b. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/US6DR0400689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fb5ec0f383f871a318f3da6381f96db8500c9bd8544853d9b5ea38969af1c4. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:34:06Z), 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/US6DR0400690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ee486446392132ef2b7f113271cff88a616522198946515eef3f33d620a08c. 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/FR85U0200210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946c1269237a519639a3892ec6642b7f003b5373b0f262e1a27a2cd68a262164. 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/USHM90502853.