Jace Lavoer Salter (born January 10, 2003), known professionally as Iayze (pronounced as "Jace") or Jace!, is an American rapper from Fort Worth, Texas. He is best known for his song "556 (Green Tip)"
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 0xa1722b40d2417adad41232f96558b58da935ede654d171b096eba8bc1a577d3f. 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/bb03adc4-bf47-4214-bf8e-eb71f4065151.json and https://artists.proofprofile.net/proofs/artist/bb03adc4-bf47-4214-bf8e-eb71f4065151.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 0x261616eac10a2af94648ba76359ae0decda8ca04ed2b032e5773330347cf801f. 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/QZS652393323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0480f2f7b7413548cf551cef679115b0681fe84acc4998671f1f549e7655d5. 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/QZQAY2317178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dadbf3141ddab01fd5e804e4eaacb8eca380b7ce0cc76912fa075045f0cf341. 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/QZFYZ2368314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc78362df33fb98eeaacd8b8d6374a27eb7e1e6661bd033cda74ed79873bffa. 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/QZTBF2336342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2e4478736630834d6afa87c26238b69801f80186074abfa3d0cd2cc05b7260. 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/USA2P2217104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf92bc1c861ccff0fabeba31d6d4e0bcd92c480f7f6b5f50c62ae41664fbd8a. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZDFP1981490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39afaf6596f4f985cf2ff1762ac30d3560ba87243ae6a7a9702645284a894e39. 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/USAT22200670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0eda66f72387148a21b92555183f3d918f214b6ffe2a4eaf68178ebe011aab. 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/QZFYZ2259042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364c646dfa2b52770108c25b103e761efcc21827bbe1ecc423f57d1d2827f783. 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/QZNWU2128910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332cf7e3fccb20b8d5e0ef95ce9500be8c6bf5e30f8451a6882e0a683431139a. 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/QZNWU2128914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e7ca0b839f19d193dad06456fa2a3e6c7949907826f137bf81e96f74256b8f. 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/QM42K2132923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1a5669c934cbfb78a387159b38e5073fbf6ecd0aa50fed1d33dc619610750e. 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/QZMHN2253199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d92e203d01e078f9fd80ba6d2f90669089db71c8ac5b7bbd88de240561f7f6. 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/QZFZ62243464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07331be23eae237414dba107de0eb1b31177386500685c33ce909099332e9af0. 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/USA2P2225654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064496826c20d4389fecbdb548c8c328f5f1640508158ec64990e8a78bde2ea6. 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/QZES92396875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd514d39bf778b4f4a92f4c48e2800f8efb4b6def5c3715d92d2f10bce0b45dff. 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/QZES92396879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd41ea8306c046da56c62c55d7f8381e43a256a0dfee5041826b665c6ea3618. 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/QZES92396889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791d083485e4ac8136c6c47dc2e808261f5de624420218645024b9bb675fe79e. 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/QZTAU2105337.