Pith Number

pith:7JD2YQIE

pith:2004:7JD2YQIEO5MBIEEMF2YSHPNTL2

not attested not anchored not stored refs pending

Long-term evolution of FU Ori-type stars at infrared wavelengths

A. K\'osp\'al, P. \'Abrah\'am, Sz. Csizmadia

arxiv:astro-ph/0402292 v1 · 2004-02-12 · 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{7JD2YQIEO5MBIEEMF2YSHPNTL2}

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	2026-07-04T16:43:01.593579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa47ac4104775814108c2eb123bdb35e83b746e5e1619ddc1131be969341bbea

Aliases

arxiv: astro-ph/0402292 · arxiv_version: astro-ph/0402292v1 · doi: 10.48550/arxiv.astro-ph/0402292 · pith_short_12: 7JD2YQIEO5MB · pith_short_16: 7JD2YQIEO5MBIEEM · pith_short_8: 7JD2YQIE

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/7JD2YQIEO5MBIEEMF2YSHPNTL2 \
  | 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: fa47ac4104775814108c2eb123bdb35e83b746e5e1619ddc1131be969341bbea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e4df7846d5f27899cf7b5d4ed7573ec7736cf38eab33ca6c8a69534d11c560b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-12T15:27:20Z",
    "title_canon_sha256": "6a4180ff354c6e5b3045fe6571c433b1301e19ec2808e542f9d0456ee42dfb43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402292",
    "kind": "arxiv",
    "version": 1
  }
}