Pith Number

pith:NSCDOD43

pith:2013:NSCDOD43YDFXXAX7Z4HPWQCB7A

not attested not anchored not stored refs pending

A generalized integrability problem for G-Structures

Andrea Santi

arxiv:1306.6817 v3 · 2013-06-28 · math.DG · 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{NSCDOD43YDFXXAX7Z4HPWQCB7A}

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	2026-05-18T01:08:27.636904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c84370f9bc0cb7b82ffcf0efb4041f81d8b102d00abf5eac9871879e7a300c3

Aliases

arxiv: 1306.6817 · arxiv_version: 1306.6817v3 · doi: 10.48550/arxiv.1306.6817 · pith_short_12: NSCDOD43YDFX · pith_short_16: NSCDOD43YDFXXAX7 · pith_short_8: NSCDOD43

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/NSCDOD43YDFXXAX7Z4HPWQCB7A \
  | 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: 6c84370f9bc0cb7b82ffcf0efb4041f81d8b102d00abf5eac9871879e7a300c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "684500562694af1a044cec4d8fbb470dd150b653ba8075fd24b56c4433986abb",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-06-28T12:54:59Z",
    "title_canon_sha256": "0273f182d2d31c53f067ad64add7ea34ae39f2cc2ffc546cd021ef74bbde1fff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.6817",
    "kind": "arxiv",
    "version": 3
  }
}