Pith Number

pith:WQTTSXNY

pith:2013:WQTTSXNY2JLZUWVLAMYZU7DLVV

not attested not anchored not stored refs pending

On the Existence and Utility of Rigid Quasilocal Frames

Paul L. McGrath, Richard J. Epp, Robert B. Mann

arxiv:1307.1914 v1 · 2013-07-07 · 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{WQTTSXNY2JLZUWVLAMYZU7DLVV}

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	2026-05-18T03:19:03.144272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b427395db8d2579a5aab03319a7c6bad59876a73acc49d6b76813520c1e10f20

Aliases

arxiv: 1307.1914 · arxiv_version: 1307.1914v1 · doi: 10.48550/arxiv.1307.1914 · pith_short_12: WQTTSXNY2JLZ · pith_short_16: WQTTSXNY2JLZUWVL · pith_short_8: WQTTSXNY

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/WQTTSXNY2JLZUWVLAMYZU7DLVV \
  | 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: b427395db8d2579a5aab03319a7c6bad59876a73acc49d6b76813520c1e10f20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba3fc6a4ad160b59d37aa57dcbf777bfa94ddb891f66e2160e4f396d46218c1f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-07-07T20:56:26Z",
    "title_canon_sha256": "25f6b742d22ded0ed10a5d4de6f77e130482271c36cff9d90ed6a7a288b2bb09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.1914",
    "kind": "arxiv",
    "version": 1
  }
}