Pith Number

pith:EESS2ZFA

pith:1994:EESS2ZFA57K7TBJXHYYZSPRZI4

not attested not anchored not stored refs pending

Time-Independent Solutions to the Two-Dimensional Non-Linear O(3) Sigma Model and Surfaces of Constant Mean Curvature

L. H. Ryder, M. S. Ody

arxiv:hep-th/9402137 v1 · 1994-02-24 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EESS2ZFA57K7TBJXHYYZSPRZI4}

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	2026-05-18T01:38:42.031632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21252d64a0efd5f985373e31993e394716cbd2afd306c3f512593787edf36766

Aliases

arxiv: hep-th/9402137 · arxiv_version: hep-th/9402137v1 · doi: 10.48550/arxiv.hep-th/9402137 · pith_short_12: EESS2ZFA57K7 · pith_short_16: EESS2ZFA57K7TBJX · pith_short_8: EESS2ZFA

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/EESS2ZFA57K7TBJXHYYZSPRZI4 \
  | 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: 21252d64a0efd5f985373e31993e394716cbd2afd306c3f512593787edf36766

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2f131fc7df84c59bde0721bd41ea2b5a8feafad5e7e78a2b58838ac1bfba002",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1994-02-24T12:25:36Z",
    "title_canon_sha256": "378e479e915734388839682751212a61de88870fc7512a57d3a348e68c417844"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9402137",
    "kind": "arxiv",
    "version": 1
  }
}