Pith Number

pith:5PPGFYOO

pith:2005:5PPGFYOOKR2TOMX7LDOQBJFLKH

not attested not anchored not stored refs pending

Observational Constraints on Silent Quartessence

Fabio Finelli, Ioav Waga, Luca Amendola

arxiv:astro-ph/0509099 v1 · 2005-09-05 · 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{5PPGFYOOKR2TOMX7LDOQBJFLKH}

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	2026-07-04T17:15:06.333902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebde62e1ce54753732ff58dd00a4ab51fc7a6c33eb8580651063198b78578a83

Aliases

arxiv: astro-ph/0509099 · arxiv_version: astro-ph/0509099v1 · doi: 10.48550/arxiv.astro-ph/0509099 · pith_short_12: 5PPGFYOOKR2T · pith_short_16: 5PPGFYOOKR2TOMX7 · pith_short_8: 5PPGFYOO

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/5PPGFYOOKR2TOMX7LDOQBJFLKH \
  | 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: ebde62e1ce54753732ff58dd00a4ab51fc7a6c33eb8580651063198b78578a83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d616714df9221869cd523e128b97baef09220de3f06248296ca317eaefa074db",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-05T19:20:28Z",
    "title_canon_sha256": "b8adb3324c7b99ffd17038b1764d54b0ea49a58bf762512dbec7afc6a36cca82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509099",
    "kind": "arxiv",
    "version": 1
  }
}