Pith Number

pith:TOINPI7L

pith:1999:TOINPI7LFQT5PICJGMBBSWH6QQ

not attested not anchored not stored refs pending

A small but nonzero cosmological constant

H. van Dam (University of North Carolina), Y. Jack Ng

arxiv:hep-th/9911102 v3 · 1999-11-13 · hep-th · astro-ph · 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{TOINPI7LFQT5PICJGMBBSWH6QQ}

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	2026-05-18T04:24:15.281030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b90d7a3eb2c27d7a04933021958fe840f430950e2c290b9f27896ca94151321

Aliases

arxiv: hep-th/9911102 · arxiv_version: hep-th/9911102v3 · doi: 10.48550/arxiv.hep-th/9911102 · pith_short_12: TOINPI7LFQT5 · pith_short_16: TOINPI7LFQT5PICJ · pith_short_8: TOINPI7L

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/TOINPI7LFQT5PICJGMBBSWH6QQ \
  | 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: 9b90d7a3eb2c27d7a04933021958fe840f430950e2c290b9f27896ca94151321

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce4983ee579c81416b1a1286f0aa96d2839da14c7a77967b20120fa3cf34913e",
    "cross_cats_sorted": [
      "astro-ph",
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1999-11-13T20:18:09Z",
    "title_canon_sha256": "5029f2a1c6f8c9c1f80450d53e7d203a35a99052196b4f468f60c7548b240c9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9911102",
    "kind": "arxiv",
    "version": 3
  }
}