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 0x374cb55aebe8908924da2b7a9d16edbd7650fdc421edd3793c5553d7a142ad39. 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/6ed5cf6d-c2db-4b8d-aadc-e4ba67cfe78f.json and https://artists.proofprofile.net/proofs/artist/6ed5cf6d-c2db-4b8d-aadc-e4ba67cfe78f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
On The Outside Looking In (Smoked & Chopped)
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 0x9855f7784dbd29067830161c03830867a209a9851feac11c4abab243c93ce65b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USXQS1510143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4cc966f3f57eacd8ca8e9b80c53f54ae839c6b6d0778c1d0f620848cacb23ea. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USXQS1510137.
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 0xf2f0a65bab7d87b66aeaa4ffc77f77b89bfb42ddb064848b93dc86ddc8c6e899. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USXQS1510138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf282ac7a3eb5e9a9e9c952ef0526c808c0981457cc7382bd582fc719a05dfb9. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USXQS1510139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2f9c7c95bfc00fb0c3403c349dd5b91020640e391d8a4a99bce27853e19baa. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USXQS1510140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c21dc051b703264fbea0400aba27cd701f2bef23dd52ba44d0124e4d8b04ed8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P2250685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50229e2fb787ddd78ac2a7ec9f2440e2d5ab3bef07cc69f387a71c7296a2f1b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA2P2250693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda294523a617f2ec4ca9fdcc4e10ba8a85a99102a7bd8e7cc15549005c058ac. 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/USA2P2250691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc9847b8d28f2c03b3e781b2243d943c91bc3bc9549a566d59407ed9d444126. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P2250692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84ab02866f3f0bb197e6b161c25ce8b0f19af0c35a70fabe7c53847933bdf99. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA2P2250699.
Blunts & Broads - Instrumental Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6baccaea278cc43ee91cd7bb7dfc1ae3a323e0b85d7e4188d98feec57715cd2. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USA2P2250696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89db817cb44b0206011205acf215c4127c5403401006f2611f84c28f2c7fa076. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USA2P2250698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059397b40ff8ed099370136624e0acc479845a0f19bdd12de0417b6678d607e3. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USA2P2250688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf4baa8a6746189a276f0cf83c1d74261a6455b0350976fb236d82626ae8bf3. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USA2P2250686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46169459b556f16cacae6202c35cd3f76dff8fad963663384b5232e38f0a4f1e. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/USA2P2250689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb82741acde4cfc2264ffdfb8e878186ed08ac033e9f895b69a315483fd583b. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USA2P2250695.
I'm N Luv (Wit A Stripper) 2 (feat. Pimp C, Too $hort, MJG, Twista & Paul Wall) - Tha Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3f903dfd4c4007d38690cc61a50e972ba23712792025cc668d3ddfac87443b. 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/USJI10600092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229c3787c55f1b2ab75eb188660151c9f17d7a0eb1abe4abb811b3562961e2b0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USBB40580138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908d9c427d4d342d9a5e8b5efda92473d481a309067b9938b0fbc185894c55e1. 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/USTV10100149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd006bbfd0136800e61558102dd6ea332e3d289203572bc8fa5a0532feacd6f53. 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/USUM70723743.
Spit Your Game - Remix; feat. Twista, Bone Thugs-N-Harmony, & 8Ball & MJG; 2016 Remaster
Bad Boy 20th Anniversary Box Set Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1778911b247130502d66dbb97f18a2452f37aeb61536be0a17320a59c84eddea. 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/USRH11603446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce655055375f6ada0b63edad3b97d9c9b882fd007f366165856f10a2c2e865e. 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/USTV10200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908d9c427d4d342d9a5e8b5efda92473d481a309067b9938b0fbc185894c55e1. 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/USTV10100149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff91af91390aaa4e94de4ddd9600d07aed52a514d1976c0102e16614bbb12776. 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/USTB11600282.