Pith Number

pith:MPI6P6M2

pith:2016:MPI6P6M2YRGQX2Q34BJNQ6KUMZ

not attested not anchored not stored refs pending

Tractors and Twistors from conformal Cartan geometry: a gauge theoretic approach II. Twistors

Jeremy Attard, Jordan Fran\c{c}ois

arxiv:1611.03891 v2 · 2016-11-04 · 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{MPI6P6M2YRGQX2Q34BJNQ6KUMZ}

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	2026-05-18T00:48:09.421365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63d1e7f99ac44d0bea1be052d87954665f235e13f26d96761ce0c05020abdaed

Aliases

arxiv: 1611.03891 · arxiv_version: 1611.03891v2 · doi: 10.48550/arxiv.1611.03891 · pith_short_12: MPI6P6M2YRGQ · pith_short_16: MPI6P6M2YRGQX2Q3 · pith_short_8: MPI6P6M2

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/MPI6P6M2YRGQX2Q34BJNQ6KUMZ \
  | 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: 63d1e7f99ac44d0bea1be052d87954665f235e13f26d96761ce0c05020abdaed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb357016b764e37da4f5bede67cb0f295aa3d055d10496a9b3450cc9118ec240",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2016-11-04T17:51:01Z",
    "title_canon_sha256": "b1ad8c30e7fbff52d607caa7eddaf98158c6dcf76db99bf2adbade96d1123725"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.03891",
    "kind": "arxiv",
    "version": 2
  }
}