Pith Number

pith:5VR5QTWZ

pith:2013:5VR5QTWZBSK6QXN36OEM3FDSG2

not attested not anchored not stored refs pending

On the spectral hardening at ~> 300 keV in solar flares

Gang. Li, Gary Zank, Xiangliang Kong, Yao Chen

arxiv:1303.5917 v1 · 2013-03-24 · astro-ph.SR · 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{5VR5QTWZBSK6QXN36OEM3FDSG2}

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	2026-05-18T01:50:59.261475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed63d84ed90c95e85dbbf388cd947236aad1edf2980a8536eb9399799926ea5d

Aliases

arxiv: 1303.5917 · arxiv_version: 1303.5917v1 · doi: 10.48550/arxiv.1303.5917 · pith_short_12: 5VR5QTWZBSK6 · pith_short_16: 5VR5QTWZBSK6QXN3 · pith_short_8: 5VR5QTWZ

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/5VR5QTWZBSK6QXN36OEM3FDSG2 \
  | 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: ed63d84ed90c95e85dbbf388cd947236aad1edf2980a8536eb9399799926ea5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fd68dc10f763a2361875925c803750b0399bdbd9cd1e488c6e274d861aba929",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-03-24T06:54:56Z",
    "title_canon_sha256": "c67cca299a53e08dd01e0fd1fc2beb2407ee1c73af44a7d3b4c04a1417147197"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.5917",
    "kind": "arxiv",
    "version": 1
  }
}