Pith Number

pith:P2DSTOMN

pith:2013:P2DSTOMNBCSXE2DLLBEWF2MT3Y

not attested not anchored not stored refs pending

Spinning geometry = Twisted geometry

Jonathan Ziprick, Laurent Freidel

arxiv:1308.0040 v2 · 2013-07-31 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P2DSTOMNBCSXE2DLLBEWF2MT3Y}

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	2026-05-18T01:48:31.965535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e8729b98d08a572686b584962e993de261794bc6c888d66fb31c07e1e0e1d17

Aliases

arxiv: 1308.0040 · arxiv_version: 1308.0040v2 · doi: 10.48550/arxiv.1308.0040 · pith_short_12: P2DSTOMNBCSX · pith_short_16: P2DSTOMNBCSXE2DL · pith_short_8: P2DSTOMN

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/P2DSTOMNBCSXE2DLLBEWF2MT3Y \
  | 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: 7e8729b98d08a572686b584962e993de261794bc6c888d66fb31c07e1e0e1d17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c757556d5c21154785f69c5f33f597fa810beb4f83a3a3ae6f17ba73e405bb0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-07-31T21:09:51Z",
    "title_canon_sha256": "ccff1c18d92546c69d55c51f3fd2094803e9ae42c3f901d8e195c8ab0d268c52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0040",
    "kind": "arxiv",
    "version": 2
  }
}