Pith Number

pith:PBFOXJ42

pith:2001:PBFOXJ42Y2SERXBVRFKJUOFUSV

not attested not anchored not stored refs pending

The extent of NGC 6822 revealed by its C stars population

B. Letarte, P. Battinelli, S. Demers, W. E. Kunkel

arxiv:astro-ph/0110026 v2 · 2001-10-01 · 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{PBFOXJ42Y2SERXBVRFKJUOFUSV}

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	2026-05-18T01:07:45.473244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

784aeba79ac6a448dc3589549a38b4957b6fd6cbdb76b35a0213f72cd13f49f1

Aliases

arxiv: astro-ph/0110026 · arxiv_version: astro-ph/0110026v2 · doi: 10.48550/arxiv.astro-ph/0110026 · pith_short_12: PBFOXJ42Y2SE · pith_short_16: PBFOXJ42Y2SERXBV · pith_short_8: PBFOXJ42

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/PBFOXJ42Y2SERXBVRFKJUOFUSV \
  | 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: 784aeba79ac6a448dc3589549a38b4957b6fd6cbdb76b35a0213f72cd13f49f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7850bf9a892f2b17cad864f612e504c1aaddf52a79b7444695b9facc153bc230",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-10-01T11:22:13Z",
    "title_canon_sha256": "38a57f60df4ef103ddf8e131d57474e7d3ae36b80e62b34b85dac458a9a9eb92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0110026",
    "kind": "arxiv",
    "version": 2
  }
}