Pith Number

pith:HAFNF2U4

pith:2012:HAFNF2U4ZHNZJOOXHGC3FHQCDS

not attested not anchored not stored refs pending

Embedding vs. 6D twistors

W. Siegel

arxiv:1204.5679 v2 · 2012-04-25 · 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{HAFNF2U4ZHNZJOOXHGC3FHQCDS}

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	2026-05-18T03:56:36.076920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

380ad2ea9cc9db94b9d73985b29e021cbc9274084040beab6b823ea778ffde87

Aliases

arxiv: 1204.5679 · arxiv_version: 1204.5679v2 · doi: 10.48550/arxiv.1204.5679 · pith_short_12: HAFNF2U4ZHNZ · pith_short_16: HAFNF2U4ZHNZJOOX · pith_short_8: HAFNF2U4

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/HAFNF2U4ZHNZJOOXHGC3FHQCDS \
  | 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: 380ad2ea9cc9db94b9d73985b29e021cbc9274084040beab6b823ea778ffde87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "313d73ab80b41fb1394e9bbbfed7ffae8655e414879c446e602a22eaf8dc8cc4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2012-04-25T15:24:09Z",
    "title_canon_sha256": "5bedf6ffde828ea71394dbebfca43ae6bf3d856d28e4f7dc96de8bb0d4f62e68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.5679",
    "kind": "arxiv",
    "version": 2
  }
}