Pith Number

pith:62PHQYQL

pith:2004:62PHQYQLTW7OQH365AEYMTQUCA

not attested not anchored not stored refs pending

Observations and modeling of the inner disk region of T Tauri stars

B. Penprase, B. Whitney, C.H. Walker, D.R. Ciardi, E. Scire, G.T. van Belle, J.A. Eisner, J.E. Bjorkman, K. Wood, R.L. Akeson

arxiv:astro-ph/0412438 v1 · 2004-12-16 · 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{62PHQYQLTW7OQH365AEYMTQUCA}

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	2026-07-04T17:25:52.798575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f69e78620b9dbee81f7ee809864e14102aab5c1aafd14111f6ffd6e54d09964c

Aliases

arxiv: astro-ph/0412438 · arxiv_version: astro-ph/0412438v1 · doi: 10.48550/arxiv.astro-ph/0412438 · pith_short_12: 62PHQYQLTW7O · pith_short_16: 62PHQYQLTW7OQH36 · pith_short_8: 62PHQYQL

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/62PHQYQLTW7OQH365AEYMTQUCA \
  | 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: f69e78620b9dbee81f7ee809864e14102aab5c1aafd14111f6ffd6e54d09964c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c330c201c3935f7d89dc5b38a2489c55ae28f4cc43c2489feed8f4ee8996df65",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-12-16T19:42:05Z",
    "title_canon_sha256": "2b9d462992ad262783604cebdbc865f4537eeadd2f5274f1ecf2e3078aa9d1ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0412438",
    "kind": "arxiv",
    "version": 1
  }
}