Pith Number

pith:DOXBFZVT

pith:2011:DOXBFZVTW4ADMIWG6Z3E5J3COS

not attested not anchored not stored refs pending

Starspot-induced optical and infrared radial velocity variability in T Tauri star Hubble 4

Charles A. Beichman, Christopher J. Crockett, Christopher M. Johns-Krull, Daniel T. Jaffe, L. Prato, Naved I. Mahmud, Patrick M. Hartigan

arxiv:1105.2331 v1 · 2011-05-11 · astro-ph.EP · 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{DOXBFZVTW4ADMIWG6Z3E5J3COS}

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	2026-05-18T02:01:59.381949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bae12e6b3b7003622c6f6764ea76274a20b2846a99c51ceef2d3df438fc7bef

Aliases

arxiv: 1105.2331 · arxiv_version: 1105.2331v1 · doi: 10.48550/arxiv.1105.2331 · pith_short_12: DOXBFZVTW4AD · pith_short_16: DOXBFZVTW4ADMIWG · pith_short_8: DOXBFZVT

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/DOXBFZVTW4ADMIWG6Z3E5J3COS \
  | 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: 1bae12e6b3b7003622c6f6764ea76274a20b2846a99c51ceef2d3df438fc7bef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "835c7e14daad22ae4a5cf4046eb286c31d350c1f993588f3514918fd8d3feb06",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-05-11T22:29:36Z",
    "title_canon_sha256": "36ce5acf632856658058c532a0f8e1a41eaaa0df11cfc6ea7e8ffbf4b054e50f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.2331",
    "kind": "arxiv",
    "version": 1
  }
}