A1 x J1 (real names Phineas Waweru and Joshua Soremekun) are a British hip hop duo. They released their debut single "Latest Trends" in February 2021, which charted at number 2 in the UK and was remi
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 0x5dd8e72111f5bb2c412592135d7b547d41e0aa22de21f513b1e6b400d2cfc7b3. 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/688841d4-115a-4212-9594-9af08ef5845a.json and https://artists.proofprofile.net/proofs/artist/688841d4-115a-4212-9594-9af08ef5845a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d3f6501e20148c7666df94e22eba8b1aa04eb460f6faa81bb17d316df79102. 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/GBUM72200940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c2727eb6309f76a1e86f97b266b82876bc087e86ce350731b7195e1636afb6. 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/GBUM72108006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1787cb13d843d1439f48c2bcaa516649bee7939b5991bff471a1fed3525fb7. 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/QMRSZ2102138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c2727eb6309f76a1e86f97b266b82876bc087e86ce350731b7195e1636afb6. 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/GBUM72108006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b60b56b03fd79ef5de9eb3e9b3fa0f308d709f066f0b24b187097e91a93a9b9. 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/GBUM72201741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09040f5e718304d8020ea20482995a6c84f42ae028f6d7f0b9f7f05f300d67cf. 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/GBUM72104152.
Coming for You (feat. Loski, Bandokay & Izzpot) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4f7e36edab537d2bb712a8ab8a423dd247fdfdeb8ecebbee2a6843a36bcec1. 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/GBARL2101712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621f675aabd67fe42069da5a3225e773d46d02225bf0741d51d6907bc36e3bde. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBARL2202410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fdd47888f49671df27e1edb9cb12727d9e200b40138ab0f1f1811f20896b39. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBUM72208245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621f675aabd67fe42069da5a3225e773d46d02225bf0741d51d6907bc36e3bde. 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/GBARL2202410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295ff20525e34af3614be35898ec933ea9740ed0c660260ca02d7fb3d73b4a1f. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBUM72309167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fdd47888f49671df27e1edb9cb12727d9e200b40138ab0f1f1811f20896b39. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBUM72208245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295ff20525e34af3614be35898ec933ea9740ed0c660260ca02d7fb3d73b4a1f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBUM72309167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c86c41ac7e653d231bbef0a3ee7d9838ebf4a87090396daedc47d8abdd8707b. 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/GBUM72206871.