Hayden Jerome Kramer (born July 10, 1987), better known by his stage name Herobust, is an American record producer and DJ. His hip-hop inspired bass music quickly garnered the attention of online medi
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 0xeb395010f2c563caa79f55d45542ee7f36481b359b33c0b3acec227bd5cdca25. 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/a5c7688a-82a2-4718-ba97-13fa90f62f08.json and https://artists.proofprofile.net/proofs/artist/a5c7688a-82a2-4718-ba97-13fa90f62f08.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 0x71d0bfd555aabf2faa401ad26b05ee0d4bf26f9ec422c100ff1f2146360d0d5d. 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/QMEZE1859892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b827b07b2140ac4f91a4d3d2cea898359cd0d811f25af9600cc21580bcaed3a. 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/QMEZE1859903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d68fc2e880e1416489a4ac6fdcd1ee59387b6ff8b9e7e38d992664385a6c8f. 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/QMEZE1859899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf652f2a4396cda134d51bc160ad4e91a7dea9670c9fc946b92d6158f9cfe3e89. 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/QMEZE1859898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df82d6b66ba28791a851e7a9dd9d85fb3ddbc87364d54e4f3106fddeb92e726. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QMEZE1859895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b5a773919c8bf7cd40323acbd26ec17e6a6070fe12ac135251fe123c0c81a8. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/QMEZE1859896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af1889e68c1e9cd238519b428e2246a8175129077f46400eb3c0e9dc805e92d. 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/QMEZE1859897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2016626c2c1d05ea0c6d6fdd9c917665d19b2858cc535d13f36f98297075bfe. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QMEZE1859900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bad95f8e1357712bd486f7f6f653f92ec086cc0bbd745c6ff293b1e84c280b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QMEZE1858674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1d5e9ab52999ffbf327467c16f7109312beec135670ee6928d97ca41cb08f7. 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/CA6D22400184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8126b8168695f600f198c3325d47a0571afe00c7a75419d2fe5617fec192ffbe. 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/USAT21601529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f690473f6f45c15b965a9c22447b794dd8d0601db88eb4b26279e95dca2430a. 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/FR10S1647811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f690473f6f45c15b965a9c22447b794dd8d0601db88eb4b26279e95dca2430a. 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/FR10S1647811.
Broccoli (feat. Lil Yachty) - BUSTED by Herobust
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc7cf7586661ce235ae0b0c1715a6b82ef985aaebf9106058ceee988c3dfda0. 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/USAT21603388.
Lead Poisoning (feat. GZA, RZA & Herobust)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec31a18c9d1770cb188125efce065e6509e3e414ca8f1ab57132078b10caaec. 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/USQE91500568.