Pith Number

pith:JW3P5B5S

pith:2005:JW3P5B5SQGQ64N6IB7AHPKO6LC

not attested not anchored not stored refs pending

On the difference between type E and A OH/IR stars

J.H. He, P.S. Chen

arxiv:astro-ph/0503558 v1 · 2005-03-25 · 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{JW3P5B5SQGQ64N6IB7AHPKO6LC}

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	2026-07-04T16:51:04.605915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4db6fe87b281a1ee37c80fc077a9de5884b6aa6fc6fede45753fc26027202cbb

Aliases

arxiv: astro-ph/0503558 · arxiv_version: astro-ph/0503558v1 · doi: 10.48550/arxiv.astro-ph/0503558 · pith_short_12: JW3P5B5SQGQ6 · pith_short_16: JW3P5B5SQGQ64N6I · pith_short_8: JW3P5B5S

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/JW3P5B5SQGQ64N6IB7AHPKO6LC \
  | 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: 4db6fe87b281a1ee37c80fc077a9de5884b6aa6fc6fede45753fc26027202cbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8a84b383a5a934fe8fcd187ab07e586d87c288a7e2ae5218065173bbded13b5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-03-25T08:38:03Z",
    "title_canon_sha256": "c435c45cc7050ede3a44f3a0456cf2e6a50d1ba4ef98c053cee861a816d3ef83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0503558",
    "kind": "arxiv",
    "version": 1
  }
}