Evidence row 2201655

What was observed

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    ],
    "description": "Solve Ax=b (n up to 10) by Gaussian elimination with partial pivoting; flags singular and ill-conditioned systems.",
    "extensions": {
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              "asOf": "2026-10-12T00:51:56.509Z",
              "conditionNumber1Norm": 77,
              "degraded": false,
              "digitsLostEstimate": 1,
              "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
              "illConditioned": false,
              "maxResidual": 8.882e-16,
              "notChecked": [
                "uncertainty in your own inputs (the condition number shows how much it is amplified)",
                "exact arithmetic: 64-bit floating point",
                "…1 more"
              ],
              "reasons": [
                "Gaussian elimination with partial pivoting, then back substitution.",
                "Condition number (1-norm) 77: a relative error in A or b can be amplified by up to this factor in x.",
                "…1 more"
              ],
              "singular": false,
              "solution": [
                2,
                3
              ],
              "source": "computed locally",
              "summary": "Unique solution found; condition number about 77.",
              "verdict": "SOLVED"
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}

What the leaf hashes

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Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x35929d8c3312d530b8033b9e609098410da148f0db7659949ef5c2c859a54051
2. 0xdbaa1a8897f826e9ffe61066ff4f5ef912dd8b51da63df801863cac800a60f04
3. 0x8dfc89861aaa7eded93f800f1902a61fb3c9e7b986ea4679527555ab42a54a6c
4. 0xcb84ea24e617422265fe56be0c33b88db80c2624e01212b3fa72e6dee3f465e4
5. 0x963f22b612721feb9e9fb9f39e34120ee67bbdbaceea343b183b0719025a349c
6. 0xfff76f2b15cdde7a173c6e315c02b3cb12a424590511b9793eae82678bcf43b7
7. 0xb33c4003e1882a9984c878056f9770f400003f26024e957f798949c959e19adc
8. 0x0174b29f4c7bacb1bed1df645d9db087e45bff4d2ea834aec78e5954edecf849
9. 0x3d2777d52c7dde24f37f662d337c07ec38be3b68bb2afdf3ad18927bf2eefa3d
10. 0xa9dfdcc54b1b97035c802931831a9ef5cd77895acbfec4a723cc3de68efec4c7
11. 0x68aa051b5ad0958c2784980bb158b5c734a537988dd1b8fe9dfc6862edc59f2d
12. 0xac5d22c21d3460b12d50113c8291cbbbccadc2854415c2ad7fea9abe7f6a56be
13. 0xaabc34550f079fe0032f13b18945f4683cbb63c607e45516706e1dd02ac20d7f
14. 0xeda95b8bf6c7d0b27dc5b32d6a6006255f41e0f6bbe80842a49daa792f4de811
15. 0x464ce6fe060d0a6c4e810b71501e55084086148f7daf393caa14462b1a777022
16. 0xd42916b5c6441e9c8d91ff91715af1489cb83dee26d47e7da107caa4d2a68b65
17. 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af