Pith Number

pith:CPIJSXFX

pith:2008:CPIJSXFXN24NQO5YB3JNZKDV6S

not attested not anchored not stored refs pending

Helium line formation and abundance during a C-class flare

Ambretta Falchi, Luca Teriaca, Pablo J. D. Mauas, Vincenzo Andretta

arxiv:0803.0418 v1 · 2008-03-04 · 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{CPIJSXFXN24NQO5YB3JNZKDV6S}

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	2026-05-18T03:00:50.124220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13d0995cb76eb8d83bb80ed2dca875f49fb95ec0392ebd6519b7c590a2a23fef

Aliases

arxiv: 0803.0418 · arxiv_version: 0803.0418v1 · doi: 10.48550/arxiv.0803.0418 · pith_short_12: CPIJSXFXN24N · pith_short_16: CPIJSXFXN24NQO5Y · pith_short_8: CPIJSXFX

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/CPIJSXFXN24NQO5YB3JNZKDV6S \
  | 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: 13d0995cb76eb8d83bb80ed2dca875f49fb95ec0392ebd6519b7c590a2a23fef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7dc27b0101e9db1d8d96fb3e92530041705830be73b9b32bd9fdbdf4ee22fdc2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-03-04T12:25:26Z",
    "title_canon_sha256": "6175303eddda9cf68a3dc4bfb670a6b80aa672fd3d5d5dbe2221e4e887d8b2a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.0418",
    "kind": "arxiv",
    "version": 1
  }
}