Sleep Dank, also known as Sleep Da Danker or Sleepdank, is an American rapper signed to the late Mac Dre's label Thizz Entertainment. Early life Sleep Dank and fellow Thizz rapper Dubee were best fri
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 0x1cddae7a64771469468b123f345792b75d7537ae6a505e15a06fab92aa91215b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68f95aea-5a26-4399-bcc1-56a5b650251a.json and https://artists.proofprofile.net/proofs/artist/68f95aea-5a26-4399-bcc1-56a5b650251a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Trendsetter (feat. E-40, Yukmouth & J.Minixx)
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 0x566999752ff8f87ed1d6a0a4042c5a942e4522cbf165716d637b2600b6beb262. 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/USA2P0716297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02b4288c64edccf3d6e42a3cb559ed0f4078a8180c3c9e33200f7953fe445fa. 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/USBAE1301360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825206efef69783bfb2f30463f2106d7c088c47314212ea6b1071a7f80bdf6ed. 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/USDYP1100104.
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 0x2ddcd854ccd6d808591c92c5a7bbd3d04bb53a92ff5202e1d697c648ad28ea95. 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/USBAE0801157.
Always Into Something (feat. Sleep Dank & Da Unda Dogg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d97a6f2dbf0be099ecb0c741b5c54c61f58687185d9268a6f2db0256b6978d8. 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/USBAE0801161.
This Lifetime (feat. Sleep Dank, City Side Crew, J.Diggs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8047907651dae03d833efd1b167f3b0d25560f529ae41685a76e252d9e1dca. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USN6Z0800020.
P*ssy and Paper (feat. P.S.D., Boss Hawg, Sleep Dank, & J.Diggs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a7ef3ccda85f6cd6cd06cbef7b6169e1d0994c6dd030392d73826352995ca3. 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/USN6Z0800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43f0e10a16d2dd9604727e5d45f6f8a1dc9ebfb0c3446367c73094b1e6055fd. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USN6Z0800028.