Pith Number

pith:XOKJCHBE

pith:2015:XOKJCHBE3IEAILUQAEQ3RUROOL

not attested not anchored not stored refs pending

Accurate determination of the free-free Gaunt factor. II - relativistic Gaunt factors

G. J. Ferland, K. Volk, M. Chatzikos, M. Lykins, P. A. M. van Hoof, R. J. R. Williams, R. L. Porter

arxiv:1502.06788 v1 · 2015-02-24 · astro-ph.HE · physics.acc-ph · physics.atom-ph · physics.plasm-ph · physics.space-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{XOKJCHBE3IEAILUQAEQ3RUROOL}

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	2026-05-18T02:20:02.700749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb94911c24da08042e900121b8d22e72c3acb09eb608caddc2a47c51d399a8a3

Aliases

arxiv: 1502.06788 · arxiv_version: 1502.06788v1 · doi: 10.48550/arxiv.1502.06788 · pith_short_12: XOKJCHBE3IEA · pith_short_16: XOKJCHBE3IEAILUQ · pith_short_8: XOKJCHBE

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/XOKJCHBE3IEAILUQAEQ3RUROOL \
  | 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: bb94911c24da08042e900121b8d22e72c3acb09eb608caddc2a47c51d399a8a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3508bf5fe1b4b264c60253e3bc529200f7a1fb88a2223d908dbefe18a3ae0fc4",
    "cross_cats_sorted": [
      "physics.acc-ph",
      "physics.atom-ph",
      "physics.plasm-ph",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-02-24T12:53:21Z",
    "title_canon_sha256": "2306776d8b750fcc50e77a9fd0fa76b7e7a014db8420a35639c987465714aecf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06788",
    "kind": "arxiv",
    "version": 1
  }
}