Mason Durell Betha (born August 27, 1975), known professionally as Mase (often stylized as Ma$e), is an American rapper. Best known for his work with Sean "Puff Daddy" Combs' Bad Boy Records, he signe
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 0xa5a35584c6c38a06fc562407f819571157a0187159bd5d94451e436be6e00bbb. 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/f32756d3-e190-4584-a9fd-c5c1e2bd1562.json and https://artists.proofprofile.net/proofs/artist/f32756d3-e190-4584-a9fd-c5c1e2bd1562.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 0xdba09769630a091a20ac8a8cc18c3d921500a98683faad136cc33057ec4cc97b. 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/USBB40580589.
Breathe, Stretch, Shake (feat. P. Diddy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65ee9cfaebd969cd4a31fb968991b35158021a1c5f870596dd9b906727a58b5. 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/USBB40580590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e488ef78a2b97d65c82b376b84ec9b3df40196e83c298431682808af379dbe5. 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/USBB40580591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9efe2cf979d9d68e3044727e6c0fb0872840bafc39ce2259ea18a2bb5294e3. 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/USBB40580592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ba53fbc395174e0c54788b1022de98fd7b88b98e8d32d6445841dbe7dafece. 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/USBB40580593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0045006e54fa545c5c548b0085ac0295c217d6c49ad4957621c420a5e4b92628. 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/USBB40580594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f2bca033dab846542bebb6517b3474512b9796982e9c9b190834ce4c1c8b61. 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/USBB40580595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38820219c176d4c37b22592159f273464364e6c09bab3c47308eaf7fe158657. 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/USBB40580596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6584130e08514a88398961351f738bf00cff59ae3ca84ca56c3a5c04cf53f1bd. 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/USBB40580597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53587df809687c9d03cbf19d70487a37bd18633c54c2efffa2b482c1e5ee9d0. 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/USBB40580598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bfc66a2fc2b96cde2c62d699bca269336698ce8fd08c3894a39aed3cf8156c. 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/USBB40580521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9525d856a618335dfabebd8101c60baaf97ffb46f700b95c381f70f36534b0bc. 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/USBB40580514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa796ccec4f089cce58434a8136fd4f2b12d66bfd9a0c72a724d09b458e4fbcd1. 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/USBB40580136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535242a34e0e866ffc728ba0ca53e91ac1eca287df99dde98dacd1999f286062. 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/USBB40580126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4f5fa1061ae3c7cdec9931e5e1ef75fa29972b574014b78237dba74e142f0f. 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/USBB40580137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035b5ece26506b560d80c9cd94ffff401ed262f679aae728984407578d8e9e62. 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/USBB40581227.
Will They Die for You? (feat. Puff Daddy & Lil' Kim)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb816a5c516248c2ea5e3c3ae8dc017ece4416fbfef58c747ab94fc259c2a3726. 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/USBB40580143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44cf6f1b3bdb75f348c5e08efaa53d0e55e7f8d453024e1fd0a232bfd3b1ee0e. 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/USBB40580142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1607f734960a53683ed1422d5a5ef046e24216896d6f40560f969d659875c6e9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USBB40580132.
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 0xa945b89760e7a5192ab90e3d065c647e6ab2337faf88029146fb12c4ed1e4bb2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USBB40580134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d7e94ac1c6b9b3c697f27205ca03040860dda20b867f2cb01d7200c13dacdb. 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/USBB40580127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bcaa54db6674b205dfa662630a177ce1bc3c14b6ee163bf29ada4cdeddae3ce. 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/USBB40580141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd038870afe46f1fa5756d9b9263bb946f688dbfefe7572e9afa13864cc6ec143. 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/USBB40580135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc82ecc9fa7679f8ac50b2fb6e2081cb4993f0f656a43c14916086e8c1ae7822. 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/USBB40580125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec628f5fd1fe39dc55674bab5b6e1869d77d50ff02016a025262d00fc231e154. 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/USBB40580129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7ec9bcc900104be5077d7429e498ea7e839aa72f5540aaca920543907c34e8. 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/USBB40580130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2837ca5cea37ce060b31005ea355e6559f830a3f33f8d8ce3f77b0dd17fe9631. 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/IEWNY2336763.
What You Want (Stripped Version) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786890e8f693be4b40865c304c2eb5ce2de499cba1bad15b91fcee4563ed91f7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCAEK1975696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f8d2cebc9d87c8f47988bf42ad90ebe13a393a54f06cebd8b34883750e84d0. 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/USAT21402330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0cc6c302d8c2cde08dd0d16dde964f9b96b9b4d374b09a2eca669b9dbd1a07. 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/USAT21402331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bcaa54db6674b205dfa662630a177ce1bc3c14b6ee163bf29ada4cdeddae3ce. 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/USBB40580141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6021c9c8f0d16fe4629351f24b54991c4d5cefe3fe3b14107d55270418f9cb. 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/USBB41400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd036dbc15e098da1b604cf2522fb25a6486b7bfa5e674b48d33363a6b08381. 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/USBB41200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79231631602c7e2cc6d74321ca9eaebe39351af446e30abea0798971ff6621ec. 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/USBB41200027.
Mo Money Mo Problems (feat. Puff Daddy & Mase) - 2014 Remaster
Life After Death (2014 Remastered Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed717435f873db9eaa2d5262adb20e72e5cfc315d7c246b78eb361af8d006be7. 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/USAT21402732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254bd1aeb3cc3568a438b4cda8611911e8ec291257e9583ccbe29610cbf80960. 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/USBB40580240.
Bad Boy's Been Around the World - Remix; feat. Mase & Carl Thomas; 2016 Remaster
Bad Boy 20th Anniversary Box Set Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2733a3d0127c2ca7c612b09d0f8c55b336c1dfdf38d7b5664f67616a282b1c52. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRH11603440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e05fd47b178d9fc8fc034db8644600ffd6ad278f45ced8a38377285e2c5534e. 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/USRH11603400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5edc0f6fe78502b782b8d5d5183ef9839722f86d597f4e67ed357d16dc187fcc. 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/QMPKX1886644.