Pith Number

pith:U4UIGL3S

pith:2010:U4UIGL3SFTZF36EBWMAFVHLLRM

not attested not anchored not stored refs pending

Quantum of volume in de Sitter space

Jakub Mielczarek, Wlodzimierz Piechocki

arxiv:1011.3418 v2 · 2010-11-15 · 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{U4UIGL3SFTZF36EBWMAFVHLLRM}

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	2026-05-18T04:22:29.473106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a728832f722cf25df881b3005a9d6b8b0b97a41d87f913b16ccbe6d27f918fcf

Aliases

arxiv: 1011.3418 · arxiv_version: 1011.3418v2 · doi: 10.48550/arxiv.1011.3418 · pith_short_12: U4UIGL3SFTZF · pith_short_16: U4UIGL3SFTZF36EB · pith_short_8: U4UIGL3S

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/U4UIGL3SFTZF36EBWMAFVHLLRM \
  | 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: a728832f722cf25df881b3005a9d6b8b0b97a41d87f913b16ccbe6d27f918fcf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef9909f30f9e210ef28375bc5555cf0e57d8b21940f41d401614acfaf34a6d2e",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-11-15T15:20:33Z",
    "title_canon_sha256": "0d4f42074ca00b6be87fe31ff2431d4bc3c5a4078aadd02b639f6dc12cc783cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.3418",
    "kind": "arxiv",
    "version": 2
  }
}