Pith Number

pith:2YRBV2LM

pith:1999:2YRBV2LMEDBU5W4LQC6WNXBUZN

not attested not anchored not stored refs pending

Canonical and path integral quantisation of string cosmology models

Carlo Ungarelli, Marco Cavaglia

arxiv:gr-qc/9902004 v1 · 1999-02-01 · gr-qc · 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{2YRBV2LMEDBU5W4LQC6WNXBUZN}

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	2026-05-18T02:37:28.073619Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6221ae96c20c34edb8b80bd66dc34cb419f33f6b8397ee09df91b72f116332c

Aliases

arxiv: gr-qc/9902004 · arxiv_version: gr-qc/9902004v1 · doi: 10.48550/arxiv.gr-qc/9902004 · pith_short_12: 2YRBV2LMEDBU · pith_short_16: 2YRBV2LMEDBU5W4L · pith_short_8: 2YRBV2LM

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/2YRBV2LMEDBU5W4LQC6WNXBUZN \
  | 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: d6221ae96c20c34edb8b80bd66dc34cb419f33f6b8397ee09df91b72f116332c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36e366164912e1f0c4078bd64e806bbc545cbd4899bcf1ddae20cf3312ab897a",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-02-01T11:25:26Z",
    "title_canon_sha256": "d396b165964c5c1819e7bf508b74832dcb427a06fd93c04042fa83bd8721bb9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9902004",
    "kind": "arxiv",
    "version": 1
  }
}