Pith Number

pith:UF35WAPF

pith:2012:UF35WAPFW5DAJCWOD6D2MY7GT2

not attested not anchored not stored refs pending

On the Transitional Disk Class: Linking Observations of T Tauri Stars & Physical Disk Models

C. Espaillat, C. Qi, D. Wilner, E. Furlan, J. Hernandez, J. Muzerolle, L. Ingleby, N. Calvet, P. D'Alessio, S. Andrews

arxiv:1201.1518 v1 · 2012-01-06 · 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{UF35WAPFW5DAJCWOD6D2MY7GT2}

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	2026-05-18T01:58:54.666973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a177db01e5b746048ace1f87a663e69e9990a8f4a0bf8be5330505e64b37ab43

Aliases

arxiv: 1201.1518 · arxiv_version: 1201.1518v1 · doi: 10.48550/arxiv.1201.1518 · pith_short_12: UF35WAPFW5DA · pith_short_16: UF35WAPFW5DAJCWO · pith_short_8: UF35WAPF

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/UF35WAPFW5DAJCWOD6D2MY7GT2 \
  | 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: a177db01e5b746048ace1f87a663e69e9990a8f4a0bf8be5330505e64b37ab43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8db247b8b90685d2f3708bf0fd934a5dea2c961694c1ab3bc2cc589c983b2768",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-06T23:08:49Z",
    "title_canon_sha256": "57eb31217f8f56038cc090678af067bc06c8f2c24ee578154de69974e5cf3e17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1518",
    "kind": "arxiv",
    "version": 1
  }
}