Kush or Cush may refer to: Bible Cush (Bible), two people and one or more places in the Hebrew Bible Places Kingdom of Kush, an ancient kingdom in Nubia Kush (mountain), a mountain near Kalat, Pa
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 0xf68c69041b7e20ef5cf700cf21d78182a596757f51ce13107e7d7f3e27c04f3b. 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/3983ed44-7b4e-4331-b00e-cf8b743761c9.json and https://artists.proofprofile.net/proofs/artist/3983ed44-7b4e-4331-b00e-cf8b743761c9.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 0xc752aa09855a56370ec2c8ffc61b857de3c515c6b07ae58b2ac80232b199d609. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBCUW2200037.
Lean Wit It (Remix) [feat. Blitty, Kush, Bradz, Kash One7, Akz, YF, Double Lz & Bandokay]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd8d1ccdf08f24aca66ad9c16db728bd3eab8464d22dac98b6d6c930433f06a. 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/ZZOPM2119304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b357c676c765475cd018939c777c75f9f01afcd01ddb78a7ecfa9d21575ab2. 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/ZZOPM2003958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e4e5427d374bb0d36b9ffde7d132e4ee5167751dc808bd8d116d0f21aac36d. 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/ZZOPM2104492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e4e5427d374bb0d36b9ffde7d132e4ee5167751dc808bd8d116d0f21aac36d. 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/ZZOPM2104492.
On Deck (Remix) [feat. Rv, Kush, Double Lz, Bandokay, Lowkey OFB & Dezzie]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae021ef94f4506c5d4509370a3d5c4039e9d83799fb4fe7a2dd9663c12944ff4. 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/ZZOPM2003036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae021ef94f4506c5d4509370a3d5c4039e9d83799fb4fe7a2dd9663c12944ff4. 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/ZZOPM2003036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e4277271d038215e3dccd1cf3b77969253f3d45a9744f53193d43fa4b89c28. 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/GB2GX2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c5c04528f51f8d6bed7cf8481d21e023e89a1555206fd85f9d832257fedd0d. 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/UKXN22225884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d7797da1f3554f94418590db245ca6fb94d9bc6bb112a4140859d7d9d4b26e. 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/ZZOPM2115019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3deb91d5406c36e3a23d3c234bac5b8c4052da702e420fdc968db788a0170648. 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/GBCUW2200034.
Passenger Side (Remix) [feat. Bradz, Kush & Lowkey]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613e1769f16694416b5eddedd683f39d8a9451a88411ccabbc919e00b7e418ff. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/US39N2300357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613e1769f16694416b5eddedd683f39d8a9451a88411ccabbc919e00b7e418ff. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/US39N2300357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16030a8da58b0960b5237c8dfccf1ee5640de295cc370da3f4cf108917a6756. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/SE6QE2459004.