Pith Number

pith:F2QMWPCA

pith:2015:F2QMWPCAU43FYSXM67RW7BWHU3

not attested not anchored not stored refs pending

Twistor Geometry of Null Foliations in Complex Euclidean Space

Arman Taghavi-Chabert

arxiv:1505.06938 v3 · 2015-05-26 · math.DG · gr-qc · 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{F2QMWPCAU43FYSXM67RW7BWHU3}

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	2026-05-18T00:52:23.984206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ea0cb3c40a7365c4aecf7e36f86c7a6e2440f2f831673ca164c2c7290138669

Aliases

arxiv: 1505.06938 · arxiv_version: 1505.06938v3 · doi: 10.48550/arxiv.1505.06938 · pith_short_12: F2QMWPCAU43F · pith_short_16: F2QMWPCAU43FYSXM · pith_short_8: F2QMWPCA

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/F2QMWPCAU43FYSXM67RW7BWHU3 \
  | 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: 2ea0cb3c40a7365c4aecf7e36f86c7a6e2440f2f831673ca164c2c7290138669

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26528c205948d0e1478464865e9a23b62324a8b186cf9471a6f7cd8200c01d26",
    "cross_cats_sorted": [
      "gr-qc",
      "math-ph",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-05-26T13:29:33Z",
    "title_canon_sha256": "172e4e14529c286bed321b36194345268150748bb4acc8977a82d6a2991dd69e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.06938",
    "kind": "arxiv",
    "version": 3
  }
}