Pith Number

pith:3AT5JMFB

pith:2002:3AT5JMFB4N57RKXS7PTM4J7OCY

not attested not anchored not stored refs pending

HST, VLT, and NTT imaging search for wide companions to bona-fide and candidate brown dwarfs in the Cha I dark cloud

Fernando Comeron (ESO), Joao Alves (ESO), Ralph Neuhaeuser (MPE), Viki Joergens (MPE), Wolfgang Brandner (ESO)

arxiv:astro-ph/0207548 v1 · 2002-07-25 · 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{3AT5JMFB4N57RKXS7PTM4J7OCY}

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	2026-07-04T16:30:26.671620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d827d4b0a1e37bf8aaf2fbe6ce27ee1619205a8a4a5d316d213f5a44a9320cf2

Aliases

arxiv: astro-ph/0207548 · arxiv_version: astro-ph/0207548v1 · doi: 10.48550/arxiv.astro-ph/0207548 · pith_short_12: 3AT5JMFB4N57 · pith_short_16: 3AT5JMFB4N57RKXS · pith_short_8: 3AT5JMFB

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/3AT5JMFB4N57RKXS7PTM4J7OCY \
  | 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: d827d4b0a1e37bf8aaf2fbe6ce27ee1619205a8a4a5d316d213f5a44a9320cf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0cbd9401a9b0dee8b761b204301a2c651b43599871dce4b5cbc8955acffc2b4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-07-25T13:11:42Z",
    "title_canon_sha256": "716c68b8a5dff70ae33ccddccc1ac2b5fba8195c6d214487cc07cab23f0de5c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0207548",
    "kind": "arxiv",
    "version": 1
  }
}