Pith Number

pith:XZO5EHIG

pith:2021:XZO5EHIGFOE2ZG3CZ4NDIC3E4O

not attested not anchored not stored refs pending

Solving Linear Algebra by Program Synthesis

Iddo Drori, Nakul Verma

arxiv:2111.08171 v1 · 2021-11-16 · cs.LG · cs.AI · cs.CL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XZO5EHIGFOE2ZG3CZ4NDIC3E4O}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T03:32:30.512607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be5dd21d062b89ac9b62cf1a340b64e382d8c04b2b631e75a36162be50129cb4

Aliases

arxiv: 2111.08171 · arxiv_version: 2111.08171v1 · doi: 10.48550/arxiv.2111.08171 · pith_short_12: XZO5EHIGFOE2 · pith_short_16: XZO5EHIGFOE2ZG3C · pith_short_8: XZO5EHIG

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XZO5EHIGFOE2ZG3CZ4NDIC3E4O \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: be5dd21d062b89ac9b62cf1a340b64e382d8c04b2b631e75a36162be50129cb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b7ddf07249ba38b9c65c286c209b6d3c3fa9d7af99197de036a7a31979ba9cf",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-11-16T01:16:43Z",
    "title_canon_sha256": "9aa74fef688b02bb91924b1f98f10f2412d17561073860c74c5dd50b59d71a48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.08171",
    "kind": "arxiv",
    "version": 1
  }
}