Pith Number

pith:TZXVRNZB

pith:2005:TZXVRNZBYWSQIVK2ONP4SSOY6H

not attested not anchored not stored refs pending

Flare X-ray observations of AB Dor: evidence for Stellar Coronal Opacity

(2) Mullard Space Science Laboratory, Astronomy, F. P. Keenan (1) ((1) Department of Physics, H. R. M. Kay (2), M. Mathioudakis (1), M. Matranga (1), Queen's University Belfast, University College London)

arxiv:astro-ph/0502063 v1 · 2005-02-03 · 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{TZXVRNZBYWSQIVK2ONP4SSOY6H}

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	2026-07-04T16:50:45.821980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e6f58b721c5a504555a735fc949d8f1eee81aae8c14006eeb13c6b73066b83b

Aliases

arxiv: astro-ph/0502063 · arxiv_version: astro-ph/0502063v1 · doi: 10.48550/arxiv.astro-ph/0502063 · pith_short_12: TZXVRNZBYWSQ · pith_short_16: TZXVRNZBYWSQIVK2 · pith_short_8: TZXVRNZB

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/TZXVRNZBYWSQIVK2ONP4SSOY6H \
  | 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: 9e6f58b721c5a504555a735fc949d8f1eee81aae8c14006eeb13c6b73066b83b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "739137c896c16b532a0639682f8924bfc57d56c88247207cb4accfacd7460862",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-02-03T11:13:25Z",
    "title_canon_sha256": "a64213103ab01be23fb1600bf59e17898eff6f91b110bda83ce5c67f88218b76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0502063",
    "kind": "arxiv",
    "version": 1
  }
}