Pith Number

pith:F4FXSXHA

pith:2015:F4FXSXHAQQCZL23TKNIYFGQ6NJ

not attested not anchored not stored refs pending

Equilibria of point-vortices on closed surfaces

Pierpaolo Esposito, Teresa D'Aprile

arxiv:1502.05579 v1 · 2015-02-19 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F4FXSXHAQQCZL23TKNIYFGQ6NJ}

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	2026-05-18T02:26:46.197229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f0b795ce0840595eb735351829a1e6a4268a49889fc814627bdfac262592699

Aliases

arxiv: 1502.05579 · arxiv_version: 1502.05579v1 · doi: 10.48550/arxiv.1502.05579 · pith_short_12: F4FXSXHAQQCZ · pith_short_16: F4FXSXHAQQCZL23T · pith_short_8: F4FXSXHA

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/F4FXSXHAQQCZL23TKNIYFGQ6NJ \
  | 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: 2f0b795ce0840595eb735351829a1e6a4268a49889fc814627bdfac262592699

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82f1153e129a0dd096b2a5f5036742c78221bb909baad2ba7876da6483a04843",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-02-19T14:19:06Z",
    "title_canon_sha256": "08e20ff147fdbaf834928857f06f49cabd684bcf9a68757099ccd0d61e5a21ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05579",
    "kind": "arxiv",
    "version": 1
  }
}