Ruben Bailey (born September 27, 1969, Atlanta, Georgia), professionally known by his stage name Big Rube, is an American spoken word artist, rapper and hip hop producer. He is a first-generation memb
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 0x14cc40701a76be29293d04dc3e5292ded85134644672819f8362c2fbdc81ac5a. 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/9c0dc42e-0b35-40e0-b52f-b51bed5deb80.json and https://artists.proofprofile.net/proofs/artist/9c0dc42e-0b35-40e0-b52f-b51bed5deb80.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 0x224dae183805cc75d2498636681fe990e1f4c99b550c11cb77512b428e6e17de. 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/USUG11802311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1c273726cef8e0cff0c0f88d51bbe5842381b1ba5621ef6d2ba1368c11198f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBMYF2200167.
Hapi (with Benji. & EARTHGANG feat. Mereba, Big Rube)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd658c46172b75f7c767e7d26a9015ed32716fda3c7cc726e2822a3f3f29f619a. 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/USUM72017763.
Spill Vill (with Desi Banks & Big Rube feat. Kountry Wayne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8ff4dc441966e66d9d329d218bcf947fe94094d50142c51429295100a390e0. 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/USUM72017776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a200e8d6004938890846a9389cdca851e3b4684d415c857b32eba1a738ab8ea. 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/GBMYF2200162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6019643d064fca6fee6bdab7f5ad957e078fb99706dc354f69b221318bf139ae. 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/USUPK1321701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdf795c15e72f22c00522ae2ce5ec03f5f42f6a2c2e311d4883189b2c67afa0. 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/TCACO1634545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d94213aba0fc9d3c7e9b07aea2fa3f0c98134158a9b3875b71dcf84daa5a76. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZS7J2308205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67811f70f1c09036bf50aa09f451467d3356cb299bd1a14fc1041567e59e651a. 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/USSM11201721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67811f70f1c09036bf50aa09f451467d3356cb299bd1a14fc1041567e59e651a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM11201721.