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 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 0x2ebdd8fbb964783d30679fdb9fe7d11631004592f47fdbd74fb31c11eecf6070. 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/bfb54957-86bb-49a7-9985-e44c9c33a128.json and https://artists.proofprofile.net/proofs/artist/bfb54957-86bb-49a7-9985-e44c9c33a128.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 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 0xde769b8f6c5668675c5a44b1b7d236e91d947bcc6c40c8671bfd91e323552d14. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDA82317062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2508f2fbe03c50501e204457399c6984ed0feaea6e624ca3dc58f8c6e0c155d9. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZTBC2387584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4957244463f10318a799e6fe5f09426b0ff76186b7ad782c92bb35291b602d6. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZWFH2362714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e15bb94056190df7fee4da8b90390e2c711c1ca57d33b52df6afc01da17837. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZTAS2320024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33acdf8ebb41f050734fdaf0a4914a7d6637f272934fcd4431d2cd85287da5f. 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/QZFZ22444366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58650371de83877cc607a4f0b8a716f00493816fc58e776631a89572526b6c2c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZES62492901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e18db132c4ef5072e3689673cc8bd5e4c385e1ecffaae7800dfdb17ec66c1a5. 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/QZMEN2411347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55b16916219403a2c519dde5694744c7f79a377c29ba087f292858d3ab17c30. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:33:21Z), 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/QZMEN2411348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df705c08e4b373383ee373323b8cda5ad20471bacfaa2061c255dcc7aeac9c7. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZMEN2411349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba963aee7d40507557e72f9cf77b02b78f98e5b2fd50363df0f25c33c3dfc66. 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/QZHN82474868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43817218a9b4dd05635dcec85f1616b6c5d77924df9a1388ba8fc0a1250b21f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZMEN2411350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa193af4a6d8bbb33d9b94df1fe5d7e512f179bc0ed9cc1a8135dc2a197410b0. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/QZMEN2411351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921ef2afbb4f83e00cb7c48e39f872962f030e08c621abc7ce3215d0484e50e2. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T18:23:27Z), 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/QZMEN2411352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19abf7a0120d4d0ce3448bdac45481467ab2e467475d4276990558776a914a5d. 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/QZTBA2448920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f1487fffd3c74618be96664c5468b6c5e153ec31bf9e48fe9090eaef5d6927. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:27:26Z), 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/QZTBA2448921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65f34cd2d789f3947f9186381ac9d0a77951d1b1a2498429e343ba811442336. 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/QZRP42415996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d724bab4d3fe5f7e1ee0b3ebc55fd8c2d2cf98229f7b089c39eb41cae97fdf4. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZDA82584575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c10e0724aece178b5f61954686440bc8d212b856a23aee88efde38d4e4643c5. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZES62582220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2367a80f2f21b83b5e71b55179f5bc8e47bbb0eb77231d321dda74a25fc1c7bb. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZES62582221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c4a2ddda385cbbf894c96ebaa5cf7862ec894c20b584620a90260b4a088276. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:39:25Z), 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/QZES62582223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbde90449bddd93eff6b7655af9b9303fa27fed1b838647b64646631d44eede. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZES62582224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66db997d7f2ebf3e30291781b5b8470719b89d8c6332e424682678624b161442. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:32:05Z), 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/QZHN72585055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d724bab4d3fe5f7e1ee0b3ebc55fd8c2d2cf98229f7b089c39eb41cae97fdf4. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZDA82584575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2f6ee49f0df5c20bc0e2a0fe7acae0fa968aa719d79e3ec6a7235e153845c4. 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/QZHN72585058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0781251307dc2d8e80d4ef8d1bd2aadac30d24bd19df39cb8179060e6a20b696. 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/QZHN32582700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd73c9c387e709f87eef2b91c77fc125a06ea3d65749b7fbf76b36d2a219083. 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/QZHN72585060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24270855ec77bf1bf39927be818218e1783fe7a252b26062066dca7338899d6b. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZTB52528184.
For The Broke Niggas 2 (feat. Mg Sleepy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2976a88fd8b2cbfcba4fcd2b49c73914199d14d5a33bcb6a9572555744d649e. 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/QZZ7L2590094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5661e89addcc3e892675155c5243f3aa6e8e91964ed08bb1a3dfadd71a556300. 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/QZZ7V2565364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8976ffe9f7bd9679ed27f83e7727dca8738a863ac76db3183d85c781b3e24362. 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/QZZ7L2590178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde964be83b3d79616666e0e9801f427b795c8d1d53bc2148013ea6b3ee60a237. 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/QZDA62423600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02589430b60b11d690a02a481ca0a1ad6072e82ff04c2a2d7abfa09eb6241d2c. 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/QZDA62423596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da41d95a27a92f75b0063e9203ab5c3cacc9cc94f64fbb9a4488f84fc193ad1. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:04:12Z), 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/QZES72428412.