Higher Brothers () are a Chinese hip hop group from Chengdu consisting of four members: Masiwei, KnowKnow (formerly DZ Know), Psy.P, and Melo. The group was earliest known for their ghetto-styled song
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 0xa9453a7dfcb222118d34647a13ab16b480e29fcf649d0e43634727a36b5ef390. 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/a59773b3-c1c0-4ef8-ba31-d3a470437e90.json and https://artists.proofprofile.net/proofs/artist/a59773b3-c1c0-4ef8-ba31-d3a470437e90.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 0x0a3b66839b14b8d6699a8c024e381891a03136f6aeea6bea8828a8c5a430bfbb. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USUYG1142899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057d3a6c0cefeab3a1fb549d34da0a355a804d0df39b315eb5547e6a987dede2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USUYG1137816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a51ce67d2ff65014780a53d044189abc4a85294531055b494417e64d1c92725. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUYG1137822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc0967569cb94eb016d67f9ae3e1dd15bbe309534803a38969ea7a9b645229a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USUYG1137823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723cec577a0003c9de82ea320aa7cd05e22e14a7abd8a7a8cb0e777a2f48c64b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USUYG1137824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df90f4a2a5ac83ee586a48af87f483777e80d45caafead36b2a03d257ded2ea. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USUYG1137825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f831e0a4aa3e478646e087ea21194fa2ab9add4a61c5b3e0531f4473796ddb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUYG1166811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda6b0501cabdddf4366be72379d5d037e223061dcc130cf6b7e4385094e2158. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USUYG1178531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e786b3289791ad49498b0c62edfe1cf94b50c36d9af408a85b25626203c38ef. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USUYG1178532.
Rich Bitch (feat. Ski Mask the Slump God)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354c1622715f8f5ead9384a53b7239da46c1c06f27ce18ea99dc904e98bf9f33. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/USUYG1178534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84db9397668ae406002652dee1316a0ceac65c4c11e90f3ba929e39fef2c1696. 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/USUYG1184840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81b11e5a37c45cbaafa19e771d2bc12c69d5471bb5ac32d11f15b15197e6764. 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/USUYG1184836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7932977498081e34cf5587d75c1ed4b5f5de25073cef3cc487af680fe2a465d. 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/USUYG1184838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae4ecbd5871c91afd99c5033bae0c7940d956fc747b6502a8ec649e487c0350. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUYG1184842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe086221fbea967b1b537e8e699baf6163461341432e5acf43095669e153c1cd7. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:43:24Z), 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/ZZOPM1800802.
Midsummer Madness 20 (feat. Joji, Rich Brian, Higher Brothers & AUGUST 08)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e2e2a87640e261513a8ea7fd49c69a0f21f881601f17bc99e435a84ab02a74. 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/ZZOPM2002987.
Let It Go (feat. Higher Brothers & Blocboy JB) [MEMBA Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae644e7de46cad9e4d12b15e91cc4a9ed73007b2786dd406e9099497e85d9be9. 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/ZZOPM1800650.
Midsummer Madness (feat. Joji, Rich Brian, Higher Brothers & AUGUST 08) [KRANE Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76dc9bd23cafaf924649c9cf96643b59197cd06dc06f184a129682af3a366016. 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/ZZOPM1800647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebd6a4447f1f4d70e264287e3f9b939cddc401df95747c835c7040961f4f31d. 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/ZZOPM2001893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c23bb7b920bd02c812408e29dabb7e286ee4c35b9aecfbc520617952e685d0. 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/ZZOPM2001894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97438657afa5e6f5f06f3a6277d409801c316e707533d7612980d727fcf6ed82. 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/ZZOPM2001895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc74277ceab386beae003e77d070028aed35cd38400cc3ecb662c36fcf307e5. 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/ZZOPM2001898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2510d5881c1e0c6c7b0adbb4faf881cc49ec63b6b4804f73afb28e654ea60a7. 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/ZZOPM2001896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf74256d4bdab472e582e89a19cf93eaf552bedbbdc21ebbbf4a1591b32c2700. 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/ZZOPM2001897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8cc90ceb761f7bb8d1cf79578029e63cc431755f5e7c2d44e69d02cffc4099. 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/ZZOPM2001899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd422cd9366200f084e5ccfa80690795d9be05b393402b861dd65d45e5092973. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ZZOPM2001900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8352d8b8b9016396017d6c5cdb8a968146b235cacb849f6a9a5de667cf2a9198. 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/ZZOPM2001823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6aeac50ba882ee2ad7ef9ef475c44116add0a31cfc0890ae42df3e8890ddbce. 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/ZZOPM2001901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e34f4c03e08f7c6b18d4c4280277e7c74f63c01f99353d6865b790218e1402. 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/ZZOPM2001902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f2c8ca96aeb9915d5a99e9200f5e07300022ad1bb1f4c26b10957014373939. 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/ZZOPM2001903.