Pith Number

pith:HYTYV3XL

pith:2012:HYTYV3XLUWELDO3LGH2ND5NB6Q

not attested not anchored not stored refs pending

Contact Manifolds, Contact Instantons, and Twistor Geometry

Martin Wolf

arxiv:1203.3423 v3 · 2012-03-15 · hep-th · 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{HYTYV3XLUWELDO3LGH2ND5NB6Q}

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	2026-05-18T01:58:08.370355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e278aeeeba588b1bb6b31f4d1f5a1f421603e6a933d3e468dcd9df2b780d537

Aliases

arxiv: 1203.3423 · arxiv_version: 1203.3423v3 · doi: 10.48550/arxiv.1203.3423 · pith_short_12: HYTYV3XLUWEL · pith_short_16: HYTYV3XLUWELDO3L · pith_short_8: HYTYV3XL

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/HYTYV3XLUWELDO3LGH2ND5NB6Q \
  | 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: 3e278aeeeba588b1bb6b31f4d1f5a1f421603e6a933d3e468dcd9df2b780d537

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff3373f2e8acb74fc5f3762ef8bcc769b7c6619287c7b6894498f977b5fed41a",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2012-03-15T17:45:15Z",
    "title_canon_sha256": "ccb2853b3cdf74e544abc2a1286b8a870af4128052d1b078857d1352ef4924a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.3423",
    "kind": "arxiv",
    "version": 3
  }
}