Pith Number

pith:U3X23CON

pith:2009:U3X23CONANM2VOW22TFFCETEC4

not attested not anchored not stored refs pending

Variability of the transitional T Tauri star T Chamaeleontis

D. Gandolfi, E. Covino, E. Schisano, E.W. Guenther, J.M. Alcala', M. Esposito

arxiv:0904.0101 v2 · 2009-04-01 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U3X23CONANM2VOW22TFFCETEC4}

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	2026-05-18T02:14:08.422501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6efad89cd0359aabadad4ca511264170bc0144244a2a6bcc923b58793a53399

Aliases

arxiv: 0904.0101 · arxiv_version: 0904.0101v2 · doi: 10.48550/arxiv.0904.0101 · pith_short_12: U3X23CONANM2 · pith_short_16: U3X23CONANM2VOW2 · pith_short_8: U3X23CON

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/U3X23CONANM2VOW22TFFCETEC4 \
  | 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: a6efad89cd0359aabadad4ca511264170bc0144244a2a6bcc923b58793a53399

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1679af45f6018162999bcb2af7ce192a86bd8b5ca5d1c900f6a848cd3056651",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-04-01T09:01:01Z",
    "title_canon_sha256": "043ec39e16ca42253713d9ec91890e34b34ab095b656c9e813205081fc8ffa43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0101",
    "kind": "arxiv",
    "version": 2
  }
}