Pith Number

pith:N3QE3RNZ

pith:2000:N3QE3RNZKYYPBBVBHBNHVDPVMC

not attested not anchored not stored refs pending

A Variability Study of Pre-Main Sequence Stars in the Extremely Young Cluster IC 348

E. C Williams, J. A. Maley, W. Herbst

arxiv:astro-ph/0003307 v1 · 2000-03-21 · 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{N3QE3RNZKYYPBBVBHBNHVDPVMC}

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.

Cited by

1 paper in Pith

Lightcurves of stars in the Chamaeleon I Association

Receipt and verification

First computed	2026-07-04T16:16:12.622776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ee04dc5b95630f086a1385a7a8df5608ade1b2f4dc74808320900e49590a43e

Aliases

arxiv: astro-ph/0003307 · arxiv_version: astro-ph/0003307v1 · doi: 10.48550/arxiv.astro-ph/0003307 · pith_short_12: N3QE3RNZKYYP · pith_short_16: N3QE3RNZKYYPBBVB · pith_short_8: N3QE3RNZ

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/N3QE3RNZKYYPBBVBHBNHVDPVMC \
  | 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: 6ee04dc5b95630f086a1385a7a8df5608ade1b2f4dc74808320900e49590a43e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "074d49a1cd5a9fcd3b44a7e7cd1f1ea86416e3c544251e4f0ac9718cdb3a5320",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-03-21T22:32:48Z",
    "title_canon_sha256": "e80ef022f682bf94077828b1ff745ab84d2c08dc786a9b1d54321c258551cea2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0003307",
    "kind": "arxiv",
    "version": 1
  }
}