Pith Number

pith:7NNCAYOV

pith:2018:7NNCAYOV3AVUME7VSEZALIM2ZO

not attested not anchored not stored refs pending

Feynman's solution of the quintessential problem in solid state physics

Kristjan Haule, Kun Chen

arxiv:1809.04651 v2 · 2018-09-12 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7NNCAYOV3AVUME7VSEZALIM2ZO}

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	2026-05-17T23:46:19.394479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb5a2061d5d82b4613f5913205a19acb9cd5fbf13fb340bc2608726e46b8e135

Aliases

arxiv: 1809.04651 · arxiv_version: 1809.04651v2 · doi: 10.48550/arxiv.1809.04651 · pith_short_12: 7NNCAYOV3AVU · pith_short_16: 7NNCAYOV3AVUME7V · pith_short_8: 7NNCAYOV

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/7NNCAYOV3AVUME7VSEZALIM2ZO \
  | 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: fb5a2061d5d82b4613f5913205a19acb9cd5fbf13fb340bc2608726e46b8e135

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84b0e554b7c37dd4c7b3f300561643a6dec43b920b0a21ba24548d84e968a057",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2018-09-12T20:05:35Z",
    "title_canon_sha256": "f3da823ce558f869c5b7e004647e2dddf0354f4ebb4aaa64d5059ec44962c8ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04651",
    "kind": "arxiv",
    "version": 2
  }
}