Pith Number

pith:7NAMEZYB

pith:2005:7NAMEZYBPXNQLJZMHCATU5TZRB

not attested not anchored not stored refs pending

Decoding by Linear Programming

Emmanuel Candes, Terence Tao

arxiv:math/0502327 v1 · 2005-02-15 · math.MG · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7NAMEZYBPXNQLJZMHCATU5TZRB}

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.

Cited by

1 paper in Pith

Sparse Gradient Compression for Fine-Tuning Large Language Models

Receipt and verification

First computed	2026-07-04T14:39:37.143952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb40c267017ddb05a72c38813a76798848a7ab39306891b00cf13666548e6ee0

Aliases

arxiv: math/0502327 · arxiv_version: math/0502327v1 · doi: 10.48550/arxiv.math/0502327 · pith_short_12: 7NAMEZYBPXNQ · pith_short_16: 7NAMEZYBPXNQLJZM · pith_short_8: 7NAMEZYB

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/7NAMEZYBPXNQLJZMHCATU5TZRB \
  | 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: fb40c267017ddb05a72c38813a76798848a7ab39306891b00cf13666548e6ee0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99b35be500bb2b21c164b978def3a70b09b2b8386dad6fe81250108c1a918ad4",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "",
    "primary_cat": "math.MG",
    "submitted_at": "2005-02-15T21:12:45Z",
    "title_canon_sha256": "8baf01926af32c187671251f32e8bfef567ece066ae820b86432bfd18e2dd331"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0502327",
    "kind": "arxiv",
    "version": 1
  }
}