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 0xe8fa845c252b0e934fba9f062229558679e255cdb9cdaab8e6f024eef2823bb8. 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/4f91aa11-4d7d-4269-b7ae-30cf6eb601fe.json and https://artists.proofprofile.net/proofs/artist/4f91aa11-4d7d-4269-b7ae-30cf6eb601fe.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 0xddf9085cdaeb9741eee2ae4a8c01c9bb1eeacab7ff2d9778bdd2c56276f3ce80. 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/QZMEQ2367028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f52099cf82503dbe6dd136c310fb14bf2fc7b2b4191c95cde280a3aa8801eb3. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QZNWZ2395389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb754a742070a16d071ba861fa9582111b62917ca21cc26a47bd64c062bee73cd. 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/QZRP52302113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd5c2318e0886234400342489247caee7f0489c8966d96034e96b879beb2a25. 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/QZRP52302115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7a018b37bcf81034fa1bf8c487f1b892f079db4af0f7548814439296998e01. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZTBB2380785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f638d264b2526c3bcb65332271b7952e1fc3bb80f447545debc4be71b79829. 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/QZTBD2379432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524c750731be60e51567b33a94d37f2a137b65b1dd9270963595eeba7d8ffba0. 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/QZTBD2390567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9551acdcdf73cb100aacf57ccf7b958acdbf1ea868be68898d82e1ff471972. 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/QZWFH2344956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0566562238497da0926604129d6f409557dee0a070474f14ec9fbe72e3d66bc0. 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/QZTB22374399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a4e5da280891ef78e7f493b2635d5ad50b964b3a68c212a7c888c619e38358. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZWFM2366281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecd3d0baee78c2ca7657c9b12fb7a6e076905c15749b242aa5f6434f422bf7a. 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/QZTB22374402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398d2428ce9871189ae4951f76d7a478ea0a9fa8ddf1702ddd4eea03d079d455. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZTB22374403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b2e91f68199491aa4a37d181f038d6b7fb810b638db473e1e98a82395e36d0. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZTB22374404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6dca6d7b27064d0bfb2595c01701c576e3577fbdde6423047ce420bfdc40cc. 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/QZWFQ2314642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31abed845594b0803740d8ce558614ed96dceaf55811d324f067b7425b463d37. 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/QZHN62465809.
Money Gettin Nigga (plaqueboymax Stream)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da12ed51aa25b2492079ba30fd1a59f06bee62afb7b1763e2a06a5f5e2778df. 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/QZQAY2470127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f527316530682f59f887d85c39293f242b85f5bebd879227fba730557fae6c3. 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/QZQAY2431254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5c08e1c864ea0a6a726ace626fd393afd4fcd58320ac22d816aafd2964f7ef. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZS7J2461275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83af7ad0471b029036668d73bca591fa994304dabc932d12363cba8948632c9. 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/QZS7J2496985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa037f4a2eaf180909b910af175c3d3e737fe0d88004d8dbb3515f0deeaebcb34. 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/QZS7J2488762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19810b14ccd9ecc75084fdce16f44b68b17685d3bee26f229ca05c534a9ddfe7. 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/QZSYP2424012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed24017713bcb1c08d019fadc19ae7055526313a00b037f9e19886ade46956a. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZTLA2543265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa037f4a2eaf180909b910af175c3d3e737fe0d88004d8dbb3515f0deeaebcb34. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZS7J2488762.