Pith Number

pith:NWGOAMYX

pith:1999:NWGOAMYXYUSSX4J5QPIMFVN3KA

not attested not anchored not stored refs pending

Time variability of the gravitational constant and Type Ia supernovae

Franco Occhionero, Luca Amendola, Stefano Corasaniti

arxiv:astro-ph/9907222 v1 · 1999-07-16 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NWGOAMYXYUSSX4J5QPIMFVN3KA}

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.

Cited by

1 paper in Pith

Cosmological Impact of Redshift-Dependent Type Ia Supernovae Calibration

Receipt and verification

First computed	2026-07-04T14:16:59.766578Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d8ce03317c5252bf13d83d0c2d5bb5013e40c85828a2ce1d6e9220102570e4b

Aliases

arxiv: astro-ph/9907222 · arxiv_version: astro-ph/9907222v1 · doi: 10.48550/arxiv.astro-ph/9907222 · pith_short_12: NWGOAMYXYUSS · pith_short_16: NWGOAMYXYUSSX4J5 · pith_short_8: NWGOAMYX

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/NWGOAMYXYUSSX4J5QPIMFVN3KA \
  | 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: 6d8ce03317c5252bf13d83d0c2d5bb5013e40c85828a2ce1d6e9220102570e4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "725af57adda6affece8d3186edb9c2664f54857f646a92a807d110d7a62aeec4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-07-16T11:44:07Z",
    "title_canon_sha256": "146e8761d8cb58ac865caef930007e6a04f851489f494f2ba765bb473b6cf7ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9907222",
    "kind": "arxiv",
    "version": 1
  }
}