Douglas Davis (born September 17, 1966), known professionally as Doug E. Fresh, is a Barbadian-born American rapper, record producer, and beatboxer, also known as the "Human Beat Box". The pioneer of
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 0x43b36bd050c955158e3552ded4ce21230eac5cb41920135e038227bef6648df0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e760919-62c9-490d-8eb1-6e46b29c4500.json and https://artists.proofprofile.net/proofs/artist/2e760919-62c9-490d-8eb1-6e46b29c4500.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 0x83890f73922b05406b07aafc532356e503d0533bade661e0b3a13264ac17dd26. 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/USUYG1129614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3b65897ec862b1cb2f3b4ccd36c9cf429e2e0967acda83a956bfb6a0cc29e8. 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/USSM10414241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3b65897ec862b1cb2f3b4ccd36c9cf429e2e0967acda83a956bfb6a0cc29e8. 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/USSM10414241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf208e16f3fea606442d7e79c67a16d8419f3e91053875b5a4915a6efcf286be3. 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/US3Z41600279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbf5665c40dae49221be348b2eee06345b2f9e2881367a1635f8932f409d736. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/US3Z40700066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ec98e4f06e836276e4a8fc4711700e6b114d51d5d0e163f19a6a761b3a09cc. 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/USDJ29900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912730144cc41392793766c1836c8fecb45f9968a3112245f467a565b48c545c. 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/USAYX2100006.
Dame Dash Presents Paid In Full / Dream Team
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f343991017dce63f98b17ca7547a22ec1b6b5ae1897d564f8eb5c5fbfb62cc0. 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/USDJ20201083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e565e74f9420c31ecc9bf508e2ae3d844387b3cc4685e88909aaa4e8b2304c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZF931900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df3c78c5647e39b6679916184cdcecd3ba40da0f47fe14b43ae9a2645650a7d. 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/NLB931701201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b2729b638930c836fd408f68dc7b439c687e69ef0acbe1c5aeee8e8bebe6ea. 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/USDJ29400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c8424c2eb4e71faa9b9c3b49fa091baaeed84fffd6930812c836f6d7cd173e. 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/USUYG1128962.
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
U Can Cry to Me (feat. Raekwon & Dougie Fresh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832df83bdaf1475535e5dcce876bb1ca2bf0fbb32bde5e1e6961ffa3f81b39a8. 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/USQX91301780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36b8d9238e4433788ad1b541e78161c257760fd087872b13bbdc0171da78f01. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USUM70501507.