Pith Number

pith:FMGMIL6U

pith:2004:FMGMIL6UPFWG2VCD2XY4CXM4LY

not attested not anchored not stored refs pending

G_2-structures with torsion from half-integrable nilmanifolds

Andrew Swann, Simon Chiossi

arxiv:math/0404554 v1 · 2004-04-30 · math.DG · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FMGMIL6UPFWG2VCD2XY4CXM4LY}

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	2026-05-18T04:05:16.783430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b0cc42fd4796c6d5443d5f1c15d9c5e09f68fb6d627c2d6d5d677874ff7a500

Aliases

arxiv: math/0404554 · arxiv_version: math/0404554v1 · doi: 10.48550/arxiv.math/0404554 · pith_short_12: FMGMIL6UPFWG · pith_short_16: FMGMIL6UPFWG2VCD · pith_short_8: FMGMIL6U

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/FMGMIL6UPFWG2VCD2XY4CXM4LY \
  | 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: 2b0cc42fd4796c6d5443d5f1c15d9c5e09f68fb6d627c2d6d5d677874ff7a500

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51ab0dfaf3638e65e8a0646c9e8486a1b94636474b5e5c895d847e965aa17207",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2004-04-30T13:46:52Z",
    "title_canon_sha256": "c7a0d7d2e1042812ffe30a757a058dfef5d1d3dfab9f606b99c7bd47afc7e909"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0404554",
    "kind": "arxiv",
    "version": 1
  }
}