Pith Number

pith:IWRHEMXH

pith:2003:IWRHEMXHZXNZR4YEO6UHO3J6X7

not attested not anchored not stored refs pending

First NACO observations of the Brown Dwarf LHS 2397aB

A.M. Lagrange, E. Masciadri, F. Lacombe, H. Bouy, R. Lenzen, W. Brandner

arxiv:astro-ph/0309572 v1 · 2003-09-22 · 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{IWRHEMXHZXNZR4YEO6UHO3J6X7}

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	2026-07-04T16:51:42.405467Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45a27232e7cddb98f30477a8776d3ebfcc2668db2ae7f6ce77630d29c4034293

Aliases

arxiv: astro-ph/0309572 · arxiv_version: astro-ph/0309572v1 · doi: 10.48550/arxiv.astro-ph/0309572 · pith_short_12: IWRHEMXHZXNZ · pith_short_16: IWRHEMXHZXNZR4YE · pith_short_8: IWRHEMXH

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/IWRHEMXHZXNZR4YEO6UHO3J6X7 \
  | 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: 45a27232e7cddb98f30477a8776d3ebfcc2668db2ae7f6ce77630d29c4034293

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d2588aa8672fd0adde65fd365ccd3212ab83419ec00838cf1373a897912c5bd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-22T09:54:18Z",
    "title_canon_sha256": "71e4442b6297ff9b14c2aa7311b5c0473a7dd73c774447bd4feba30faf7a4a29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309572",
    "kind": "arxiv",
    "version": 1
  }
}