Pith Number

pith:4S5P2H5Q

pith:2013:4S5P2H5QFDV2LHRUMBUZE26PTB

not attested not anchored not stored refs pending

The world is discrete

Olaf Dreyer

arxiv:1307.6169 v1 · 2013-07-23 · 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{4S5P2H5QFDV2LHRUMBUZE26PTB}

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	2026-05-18T03:17:24.042626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4bafd1fb028eba59e346069926bcf984c826888bcb862b4141c4d2bd9c5c3ab

Aliases

arxiv: 1307.6169 · arxiv_version: 1307.6169v1 · doi: 10.48550/arxiv.1307.6169 · pith_short_12: 4S5P2H5QFDV2 · pith_short_16: 4S5P2H5QFDV2LHRU · pith_short_8: 4S5P2H5Q

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/4S5P2H5QFDV2LHRUMBUZE26PTB \
  | 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: e4bafd1fb028eba59e346069926bcf984c826888bcb862b4141c4d2bd9c5c3ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ce3882828060c14dca2074071020aa3f573295f4e23b1400a1189c32902d1d4",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-07-23T17:34:42Z",
    "title_canon_sha256": "56100bd75ec478262e40d743310e14fdd91f40a3547ab9c77de7cd812244b58a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.6169",
    "kind": "arxiv",
    "version": 1
  }
}