Pith Number

pith:U4ZRTUEC

pith:2012:U4ZRTUECG5MKBGRGI3WAZZNQOA

not attested not anchored not stored refs pending

The integrable harmonic map problem versus Ricci flow

Sergei L Lukyanov

arxiv:1205.3201 v2 · 2012-05-14 · hep-th · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4ZRTUECG5MKBGRGI3WAZZNQOA}

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

Twists of trigonometric sigma models

Receipt and verification

First computed	2026-05-18T01:57:32.248232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a73319d0823758a09a2646ec0ce5b0702265820487f280b966a794e6b5fa6af2

Aliases

arxiv: 1205.3201 · arxiv_version: 1205.3201v2 · doi: 10.48550/arxiv.1205.3201 · pith_short_12: U4ZRTUECG5MK · pith_short_16: U4ZRTUECG5MKBGRG · pith_short_8: U4ZRTUEC

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/U4ZRTUECG5MKBGRGI3WAZZNQOA \
  | 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: a73319d0823758a09a2646ec0ce5b0702265820487f280b966a794e6b5fa6af2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddd11f9c1f385cecbe329bfeef3dc868176b7ee425755a0550e417fac0670bf1",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2012-05-14T21:32:11Z",
    "title_canon_sha256": "f84605158f5ae83138379a296d96220f8737a3de7bcc13109e4b9f472a5e28ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.3201",
    "kind": "arxiv",
    "version": 2
  }
}