Pith Number

pith:22UW3ANP

pith:2009:22UW3ANPMXQMNOVSAVP3IFUF64

not attested not anchored not stored refs pending

Matters of Gravity, The Newsletter of the Topical Group on Gravitation of the American Physical Society, Volume 34, Fall 2009

David Garfinkle

arxiv:0909.3214 v1 · 2009-09-17 · 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{22UW3ANPMXQMNOVSAVP3IFUF64}

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	2026-05-18T01:04:59.763159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6a96d81af65e0c6bab2055fb41685f70c2fb710cf569f60365d887c265d7689

Aliases

arxiv: 0909.3214 · arxiv_version: 0909.3214v1 · doi: 10.48550/arxiv.0909.3214 · pith_short_12: 22UW3ANPMXQM · pith_short_16: 22UW3ANPMXQMNOVS · pith_short_8: 22UW3ANP

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/22UW3ANPMXQMNOVSAVP3IFUF64 \
  | 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: d6a96d81af65e0c6bab2055fb41685f70c2fb710cf569f60365d887c265d7689

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfabd27bafa20c6d5fcd441e1d044f8589ce983791b9cc594524ff5a7bf47fd8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-09-17T13:26:59Z",
    "title_canon_sha256": "dad26276fabed4430dc951f9b44fc62a0f8f8154efd6f6e43ea52aeaeb86f278"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3214",
    "kind": "arxiv",
    "version": 1
  }
}