Pith Number

pith:E4VGDWHI

pith:2013:E4VGDWHIFFW7HD3OD4WQJNPQCO

not attested not anchored not stored refs pending

X-ray flares observed from six young stars located in the region of star clusters NGC 869 and IC 2602

Bhabha Atomic Research Center (2) Aryabhatta Research Institute of Observational Sciences (3) Tata Institute of Fundamental Research), Brijesh Kumar (2) ((1) Astrophysical Sciences Division, Himali Bhatt (1), J. C. Pandey (2), K. P. Singh (3), Ram Sagar (2)

arxiv:1312.7221 v1 · 2013-12-27 · astro-ph.SR · astro-ph.GA · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E4VGDWHIFFW7HD3OD4WQJNPQCO}

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	2026-05-18T01:45:35.684282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

272a61d8e8296df38f6e1f2d04b5f013a40dc4acaa906e83526ba41551b343ee

Aliases

arxiv: 1312.7221 · arxiv_version: 1312.7221v1 · doi: 10.48550/arxiv.1312.7221 · pith_short_12: E4VGDWHIFFW7 · pith_short_16: E4VGDWHIFFW7HD3O · pith_short_8: E4VGDWHI

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/E4VGDWHIFFW7HD3OD4WQJNPQCO \
  | 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: 272a61d8e8296df38f6e1f2d04b5f013a40dc4acaa906e83526ba41551b343ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0bd547266ca8f7c8eeeba5e28991090590119bc504d3912b1a844e0545ebf4d1",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-12-27T09:19:03Z",
    "title_canon_sha256": "ae35b0972ad4ed4ff2a1033e010c801bd3d4049ab78a770f32783cd0d5606882"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.7221",
    "kind": "arxiv",
    "version": 1
  }
}