Pith Number

pith:WQNATWM4

pith:2008:WQNATWM4RMHIHAO6BMSBS65MLX

not attested not anchored not stored refs pending

A sub-AU outwardly truncated accretion disk around a classical T Tauri star

B. A. Sargent, C. Espaillat, C. Tayrien, Dan M. Watson, E. Furlan, K. L. Luhman, L. W. Hartmann, M. K. McClure, N. Calvet, P. D'Alessio, P. Manoj, S. T. Harrold, W. J. Forrest

arxiv:0801.0402 v2 · 2008-01-02 · 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{WQNATWM4RMHIHAO6BMSBS65MLX}

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	2026-07-04T17:08:16.518928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b41a09d99c8b0e8381de0b24197bac5dd38cb24911eef9cdde3e4892e50e6c1d

Aliases

arxiv: 0801.0402 · arxiv_version: 0801.0402v2 · doi: 10.48550/arxiv.0801.0402 · pith_short_12: WQNATWM4RMHI · pith_short_16: WQNATWM4RMHIHAO6 · pith_short_8: WQNATWM4

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/WQNATWM4RMHIHAO6BMSBS65MLX \
  | 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: b41a09d99c8b0e8381de0b24197bac5dd38cb24911eef9cdde3e4892e50e6c1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91d2aec0859096b27714666602f487f546d8e0ba09de09ffda17a7f3bea65314",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-02T20:06:10Z",
    "title_canon_sha256": "42d1c065dd06fa58eac1e8733995f9b3dcfab17da5e55071947cd9abff5eab0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.0402",
    "kind": "arxiv",
    "version": 2
  }
}