USU or Usu may refer to: Swiss Student Union Universal Student Unionism (Australia) Unseptunium, a hypothetical chemical element with symbol Usu Usu (mortar), a Japanese mortar Universities U
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 0xe248006d582dd2963910df148d57f1354db9af303c2d4f9fb4393eb785c2640d. 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/b8289480-ff1f-43ac-96f9-2ad94154d692.json and https://artists.proofprofile.net/proofs/artist/b8289480-ff1f-43ac-96f9-2ad94154d692.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 0xa7f4638d80b149ba7c69e1a90f4e0dd297628efb7d4ad86a0182ddc241998248. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCJPQ2291032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6258c7515542014a47c4a66b1cb66b643f8667015bff120d7d4b2341a53ae335. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/TCJPQ2291017.
The rodeo man show (feat. The Madpotatoman, KONG, KRYZ & DJ KO-ZY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9253e6fdceb1d8391699a1c49a42a40ec76f0b1741af89484e9bf8dd987733. 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/TCJPS2222206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1457cf9577540be7f235cf6f854815626265825fe7e00ef57c89c25770234d0e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/TCJPX2373251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1457cf9577540be7f235cf6f854815626265825fe7e00ef57c89c25770234d0e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/TCJPX2373251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7f7a9ba2d66794b90409c4df069ae7478f173ba3e9e17d2fa7e8bf49627976. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPY2314778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d810b5610c35310da8c6489808e1e5b3fb59ebfff3f2d665dbd5809d0e552be. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPY2314833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a99b53aab6371a142dbc9a8628898c3e459df2165b92184e493899ae31ddbe. 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/TCJPA2485439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d159b24efbfb16d022889ceaa9215625a43b9bf4e3795e2a20a1b860fca27a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCJPA2485462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64336333b5de55fb20e66fb8df3136d22af71475a27228e6c3285bf6a7a52ce. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/TCJPX2345099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de44bc3b892b0ef1a1377cb84e5669ec569fc83405397635d23cdc2930e68aa. 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/TCJPA2485487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b6777f04c82d7cbc2297264677d8b770ad9e1306a5fe8996ffaa7543ad9831. 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/TCJPA2485503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220a729882766aa7080a7c9bf279286a3163b7ff1169c7c857dd7df1427cda51. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/TCJPA2485508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc99c88dc3648b8dc0aef330e7b44c43262abd31862178825bd39ec688729d23. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/TCJPA2485517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfad6d26ef5f4f932decaa9771cbc9c360c07af2b0d1557c1f831864aaadcf60. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPV2386457.
Straight up (feat. Dr.KID, Lil Bell Dice, Ik0aN, Fitray, Kitaro yvng jet, MaM & Dr.ilda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f06b93231f11e36bfe085da51e4bf53bbbc6fcc7a19d71b1620f4ba45b841a4. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TCJPZ2436523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d98ceec7e213ee3fb0c13cd14ddaf43ea6be0e55c6ad33b042a893091a9a61f. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TCJPZ2436527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe43dfa08c50fb2ad2637592cb92cb121f368281dbae8e474aa75431924f13f. 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/TCJPA2485743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4b1a90d56306efe7d3f6931b4af6371fb8be9ea263c6c453357eb18aaabaae. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCJPY2336699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1418a5645f6b1074f35cc02392944b26019248e192ad8c48267143c2d97f2740. 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/TCJPA2485763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a99b53aab6371a142dbc9a8628898c3e459df2165b92184e493899ae31ddbe. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCJPA2485439.
USU Best Mix 'From The Bottom' Mixed by DJ TAZAWA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc169194d096988cb5dfe28aca2ca539ca508e76459a079a78b00b93e1a0f288a. 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/TCJPD2546508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc169194d096988cb5dfe28aca2ca539ca508e76459a079a78b00b93e1a0f288a. 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/TCJPD2546508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2af9e49cce037a97f71ba82b3c7e0d4e080cb6472afe592e3a9fdabf7f00c6a. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/TCJPD2579198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400b65c199f89cc617a63095029b76fed56db78dbfffd65395f1a4e67a5eee2a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCJPC2415868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2af9e49cce037a97f71ba82b3c7e0d4e080cb6472afe592e3a9fdabf7f00c6a. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/TCJPD2579198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e7d7bd349f7ab784777328f7df3cf826277a3ce1826812575f668367fce023. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QT66J2591743.