Pith Number

pith:MYWF3VYY

pith:2014:MYWF3VYYHEI73QGNVL627JWH66

not attested not anchored not stored refs pending

Hardness of parameter estimation in graphical models

David Gamarnik, Devavrat Shah, Guy Bresler

arxiv:1409.3836 v2 · 2014-09-12 · cs.CC · cs.AI · cs.IT · math.IT · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MYWF3VYYHEI73QGNVL627JWH66}

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	2026-05-18T02:42:27.680656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

662c5dd7183911fdc0cdaafdafa6c7f7a6d199c5b0b6e0e7793e0557890d450a

Aliases

arxiv: 1409.3836 · arxiv_version: 1409.3836v2 · doi: 10.48550/arxiv.1409.3836 · pith_short_12: MYWF3VYYHEI7 · pith_short_16: MYWF3VYYHEI73QGN · pith_short_8: MYWF3VYY

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/MYWF3VYYHEI73QGNVL627JWH66 \
  | 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: 662c5dd7183911fdc0cdaafdafa6c7f7a6d199c5b0b6e0e7793e0557890d450a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbd93ebc70c056cb3aa4dce7cb2d2b3507c32f16bcf4d457ce1c1678ac3f75f7",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.IT",
      "math.IT",
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-09-12T19:57:59Z",
    "title_canon_sha256": "553c6d19d07188258a6dd51e63c7b77276506bd53cc78b9ba6aeb72078b8ad23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.3836",
    "kind": "arxiv",
    "version": 2
  }
}