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 0xa40612ec5315fc972db22e5ee729802255a26fed1615094bd87264afb8308c8f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ff8bad5-c3a5-4b0e-a357-3730efab77cc.json and https://artists.proofprofile.net/proofs/artist/3ff8bad5-c3a5-4b0e-a357-3730efab77cc.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 0x9751d7fe35c1a6c1ddf39a03e449b164b5666ee38130d32e040f5ad423965d03. 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/USSM19801206.
Only For The Real DJ: A Premier Selection of Hip Hop Inspired by the Boom Bap Sound – Volume 2
Hip Hop 100 Hits - Urban rap & R n B anthems inc. Jay Z, A$ap Rocky, Wu-Tang Clan & Nas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501359a3c56d364e0c7b22207bfa7af1a225082addafb1e57a6f122e27c077ee. 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/USSM19702719.
Guru's Jazzmatazz: The Timebomb Back to the Future
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5eec993313cbd5ef2d6436b56e2f4ce2d8231f3930b66cbe4270f9c35f7d5ca. 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/CH7811101458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13940073e911a99414547f5c317c10146d66064c0d09f49027105f173371885a. 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/USRL19801071.
Maintaining (feat. Lord Tariq, Peter Gunz & A-Kash)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5783a3db6443fde79bc69d1f10b5d9e63bef0b3ef636ba718c6759781c698e6f. 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/USUYG1252754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b84c365e1dcc44beb3824895502a4cdecfaa274a05d303e0a7a8c00b48794c. 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/USUYG1566366.
The Mix Tape Volume III - 60 Minutes Of Funk - The Final Chapter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea03fde246596acec356ea9d5c83c48626175549ee6d4ed3c6ad12dae26cbce. 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/USLR59900793.
Action Like Charles Bronson: Best of Hardcore Hip Hop Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530bedcfab443439917d99e019cf37445f2279d8150a7fe2590dab19706d20a3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USI4R1121222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6332151e9833de48b81dc6ed37c730a09ba9cbb0c3e69c27a97fd04f89aebba6. 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/USRW50200051.
Rock Steady Part II (feat. Lord Tariq & Peter Gunz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15b5325b35cd5a21da2e788d208f370c39c08b39f25dab3ded5dad4b32a7007. 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/USRC19807683.
My All / Stay Awhile (feat. Lord Tariq & Peter Gunz) - So So Def Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637257901f920bfc2235214ab833240e95b1ebaa89a57832d2bb2dc8a7f538e2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM19704408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05952b74f2d7513ce870b5d0a45d92a36a3e33de616a4f810d52664b032c45c8. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QMFMF2375547.
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 0x4212574ce85d62495c35a8d6534398a9a63b3c37f6300f1c5a5e6414f1fac997. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USLD91731748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115f68785a32c15d9dc575891031c819a3d67dcc35cdab895743d1f3b86cc092. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USLD90803865.
Men of Business (feat. Noreaga, Lord Tariq, Kool G Rap & M.O.P.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80342946730470fdb124c130a18f69d4a329ff08e3b5480e4883a9b10a32a29c. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USI4R1121211.