Pith Number

pith:HC5E537O

pith:1999:HC5E537OMUN7D4VTNAGM2FNCMQ

not attested not anchored not stored refs pending

Cosmological models with variable constants

J. A. Belinchon

arxiv:gr-qc/9907003 v3 · 1999-07-01 · 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{HC5E537OMUN7D4VTNAGM2FNCMQ}

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	2026-05-18T02:37:27.963253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38ba4eefee651bf1f2b3680ccd15a2640c66351423dd199859da1c226790c433

Aliases

arxiv: gr-qc/9907003 · arxiv_version: gr-qc/9907003v3 · doi: 10.48550/arxiv.gr-qc/9907003 · pith_short_12: HC5E537OMUN7 · pith_short_16: HC5E537OMUN7D4VT · pith_short_8: HC5E537O

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/HC5E537OMUN7D4VTNAGM2FNCMQ \
  | 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: 38ba4eefee651bf1f2b3680ccd15a2640c66351423dd199859da1c226790c433

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d51839b7cd7c8f1a5df303aff87fc6bf29905f126ec5bcb2e3e058b6024b220",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-07-01T22:51:16Z",
    "title_canon_sha256": "cf9b3ed7e0df00ecb3d79a8d59c4b1bf36095897997932b42ee31a66cd9dc82e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9907003",
    "kind": "arxiv",
    "version": 3
  }
}