Pith Number

pith:CLQFL2ZX

pith:2013:CLQFL2ZXFBFFSBSU4K2OGXMAZ6

not attested not anchored not stored refs pending

Paracontact metric manifolds without a contact metric counterpart

Ver\'onica Mart\'in-Molina

arxiv:1312.6518 v3 · 2013-12-23 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CLQFL2ZXFBFFSBSU4K2OGXMAZ6}

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	2026-05-18T02:20:36.999779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12e055eb37284a590654e2b4e35d80cf9e070007849e45358cbdd54882296c0f

Aliases

arxiv: 1312.6518 · arxiv_version: 1312.6518v3 · doi: 10.48550/arxiv.1312.6518 · pith_short_12: CLQFL2ZXFBFF · pith_short_16: CLQFL2ZXFBFFSBSU · pith_short_8: CLQFL2ZX

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/CLQFL2ZXFBFFSBSU4K2OGXMAZ6 \
  | 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: 12e055eb37284a590654e2b4e35d80cf9e070007849e45358cbdd54882296c0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db6bb475bef1476af8693b9df476a3d0730efff59f67739eeb7048d32a2d55cf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-12-23T11:01:50Z",
    "title_canon_sha256": "93cf73b1d6cd24c58a9cc6f520ea007b9e0a22647028a4fc7a1d27ab8a310280"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.6518",
    "kind": "arxiv",
    "version": 3
  }
}