Pith Number

pith:32XTRVVP

pith:2022:32XTRVVPRPMNBH46N7TQYIUI77

not attested not anchored not stored refs pending

Evolution of X-ray Activity in <25 Myr Old Pre-Main Sequence Stars

(2) Huntingdon Institute for X-ray Astronomy, (3) California Institute of Technology, (4) USM, (5) American University, 6) ((1) Pennsylvania State University, (6) NASA/GSFC/SEEC), Eric D. Feigelson (1), Gordon P. Garmire (2), Konstantin V. Getman (1), LMU, Michael A. Kuhn (3), Patrick S. Broos (1), Thomas Preibisch (4), Vladimir S. Airapetian (5

arxiv:2203.02047 v2 · 2022-03-03 · astro-ph.SR · astro-ph.EP · astro-ph.HE · hep-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{32XTRVVPRPMNBH46N7TQYIUI77}

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	2026-07-05T04:50:53.836950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

deaf38d6af8bd8d09f9e6fe70c2288ffd765986657a8bc8224e7417bd4ff9b62

Aliases

arxiv: 2203.02047 · arxiv_version: 2203.02047v2 · doi: 10.48550/arxiv.2203.02047 · pith_short_12: 32XTRVVPRPMN · pith_short_16: 32XTRVVPRPMNBH46 · pith_short_8: 32XTRVVP

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/32XTRVVPRPMNBH46N7TQYIUI77 \
  | 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: deaf38d6af8bd8d09f9e6fe70c2288ffd765986657a8bc8224e7417bd4ff9b62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e622f069a11668d46b92197db040bc1d4192b9fcfe14a33dceeb551b7a5628d8",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.HE",
      "hep-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-03-03T22:34:37Z",
    "title_canon_sha256": "f87b52df3e095de617c198e01040e95af84836e0a7868081aa8ab11b4b5baef1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.02047",
    "kind": "arxiv",
    "version": 2
  }
}