Pith Number

pith:7PTNWYS2

pith:1996:7PTNWYS22DG4ITF4MKCSEMBL6A

not attested not anchored not stored refs pending

Nucleosynthesis bounds on a time-varying cosmological 'constant'

Michael Birkel, Subir Sarkar (Oxford U.)

arxiv:astro-ph/9605055 v3 · 1996-05-10 · astro-ph · hep-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{7PTNWYS22DG4ITF4MKCSEMBL6A}

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	2026-05-18T04:28:38.222611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbe6db625ad0cdc44cbc628522302bf01e9271b33a278011fd53ce6b2cc0119a

Aliases

arxiv: astro-ph/9605055 · arxiv_version: astro-ph/9605055v3 · doi: 10.48550/arxiv.astro-ph/9605055 · pith_short_12: 7PTNWYS22DG4 · pith_short_16: 7PTNWYS22DG4ITF4 · pith_short_8: 7PTNWYS2

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/7PTNWYS22DG4ITF4MKCSEMBL6A \
  | 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: fbe6db625ad0cdc44cbc628522302bf01e9271b33a278011fd53ce6b2cc0119a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91b9408e77f0155b3a755eea6587be255daf82f423c0144cb6bdf7cc7578ff22",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-05-10T19:52:21Z",
    "title_canon_sha256": "83da943982e62e8245e04f59f107ed928076a3fe3ca4a4cd0b35358d8df4e17e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9605055",
    "kind": "arxiv",
    "version": 3
  }
}