Pith Number

pith:FXZV2OFM

pith:2000:FXZV2OFMUDUQD7YL2UXT72C7V2

not attested not anchored not stored refs pending

Angular size in quintessence cosmology

J. A. S. Lima (UFRN-Brazil), J. S. Alcaniz (UFRN-Brazil)

arxiv:astro-ph/0003189 v1 · 2000-03-13 · 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{FXZV2OFMUDUQD7YL2UXT72C7V2}

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	2026-05-18T04:21:42.723308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2df35d38aca0e901ff0bd52f3fe85faebfccd75f5db6cad4eb1c6a1a45edfa2f

Aliases

arxiv: astro-ph/0003189 · arxiv_version: astro-ph/0003189v1 · doi: 10.48550/arxiv.astro-ph/0003189 · pith_short_12: FXZV2OFMUDUQ · pith_short_16: FXZV2OFMUDUQD7YL · pith_short_8: FXZV2OFM

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/FXZV2OFMUDUQD7YL2UXT72C7V2 \
  | 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: 2df35d38aca0e901ff0bd52f3fe85faebfccd75f5db6cad4eb1c6a1a45edfa2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70b934cb0e92bb5d7d1c04a23cdfa75b7a8ae68bceac70c3698671d53f5de99f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-03-13T22:06:03Z",
    "title_canon_sha256": "291618ecb21852f7758eb3d51fa97ffb47bdc1067e01814cdd10e8959f882991"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0003189",
    "kind": "arxiv",
    "version": 1
  }
}