Pith Number

pith:JIRSZPGB

pith:2011:JIRSZPGBHGVQHOXTNBMIZTTGPV

not attested not anchored not stored refs pending

Various Facets of Spacetime Foam

Y. Jack Ng

arxiv:1102.4109 v1 · 2011-02-20 · gr-qc · astro-ph.CO · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JIRSZPGBHGVQHOXTNBMIZTTGPV}

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	2026-05-18T04:28:07.802051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a232cbcc139ab03baf368588cce667d46955ec4f06e7ae78bd4395e48da5b8d

Aliases

arxiv: 1102.4109 · arxiv_version: 1102.4109v1 · doi: 10.48550/arxiv.1102.4109 · pith_short_12: JIRSZPGBHGVQ · pith_short_16: JIRSZPGBHGVQHOXT · pith_short_8: JIRSZPGB

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/JIRSZPGBHGVQHOXTNBMIZTTGPV \
  | 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: 4a232cbcc139ab03baf368588cce667d46955ec4f06e7ae78bd4395e48da5b8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e2df9cf9ca86c7202dda1a82c3f88e8fd87e1e49bb6fa0dc107e0cf65da04da",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-02-20T23:14:40Z",
    "title_canon_sha256": "4c3574009e5fdbfaf6eb07618dacae57c8a1c4b2dba393c14c371148740abef9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.4109",
    "kind": "arxiv",
    "version": 1
  }
}