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 0x69d2697f8772d7a2a412f4083285a9a5cfa0563a17485e30f8e2d40eeda1d378. 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/85f09364-3674-4e42-81c8-7cbc6a7123e8.json and https://artists.proofprofile.net/proofs/artist/85f09364-3674-4e42-81c8-7cbc6a7123e8.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 0x94e7f1fd337c550322c5a10ecdb6d108a2c16281b1372dc70600a6571b29f5c4. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USHM91888727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bbeea178858a981872d758382da02cb96a37bec7bdb219a988b39ad025e5be. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:41:38Z), 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/USHM91888728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f5e2ba45db218e04ae074c5d9d75720919f21ffeaa7e820003a1d0a414cba1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USHM91888734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab87ce4574afdab058d4b57b6aec91755707f9a156ed117230d0e9827215ef66. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:57:28Z), 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/USUYG1279817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a6f7930273269d1fa8b52b8c5509b3c4bacce1445ca35bee26fc4d77186275. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:10:07Z), 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/USUYG1279820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ba9176480375bde894892f17fd687a02613bf0d3137af873cb595ae4f9c8a2. 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/USL4Q1966295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b1827dd4750b38d71324594544953720f5b51f046cae30e4f114039b2f37f0. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USCGJ2010404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4adbabfe94149aeec74875b1f36173f49a6bfc643d2c78a8db895b779e62e0. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/USUYG1317307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527e8856c285c8de647da05bbdf4e9c4ee3dd387e2910944ff58e3c3a6da13f5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USUYG1317311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a35855307a61de2aafd324b047c13f0129980a6c19ded972e911f29a908fd3. 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/USUYG1317312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2675796c4a69c40aa99f4712b211d032a70dbc2395697cb180e3609864761bc8. 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/USUYG1317313.
On These Streets (feat. Jobi Locs & Young Swoop)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca2b220d20dd8525e6d6b0829be32651a12a448d75f534da559a5cd39fa6f08. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USUYG1317304.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c295c1c1b359026691ee00bfd8e935c4affd0922a59dfccb91ce101edcfce5. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USUYG1317314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946bbd40c097d1bc0ff0bca33209a8bc5e5712d072bf0d7340de5145bfdc6105. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USUYG1317306.
Don't Fuck With You (feat. Troublez & Lonely Boy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c987d0054efeadbe6341846be150168884170675a07c784bfd17ce8e2939206. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USUYG1317308.
From The Gutta (feat. Rico 2 Smoove & Sneaks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e81cea82d7444b22d54994f0adb96cff4f8d923ee84f904573d42732ea42b9. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/USUYG1317309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded1e0a133f759274ce14b5ed1359440155d0c7703bc2a84e79d51cdc7416b3c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USUYG1317310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e28919d4fdfccd018ee9e9c91524450446a00c8c0649b96d78f2353094104b6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCGJ2196641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26330ab9c956e443194fc1eda6f191eb3135f782248f8f77111902157a180d32. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USCGJ2196646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0528175c3afccf1990b9c71550043f17cc7221b4c0f3537d596669e8ea8cf1. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/USCGJ2196648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e34582d8f92af2a57039a524cf6e1002c10c990c074d5c0789d07fe953fa8e6. 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/USQY51570877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3ddb3f0dcfa0fe027a3e7d4f0d2b7437814b5d890e8f6b1741ac2220a365f1. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/USQY51570873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f75f0d22bd5aa2887e39708eb422e93d984d457771ee7054e1cbe9aa9593fd. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USQY51570874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73c07fc9cc90807a3be97fd60a5e0ffacc3860816e51c0ea832abefa45b7502. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USQY51570881.