Pith Number

pith:DMI3K4HL

pith:2017:DMI3K4HLTGPZIRH5ZZDCO64HKF

not attested not anchored not stored refs pending

Radiative rates and electron impact excitation rates for transitions in He II

A. Igarashi, F. P. Keenan, K. M. Aggarwal, S. Nakazaki

arxiv:1704.07275 v1 · 2017-04-24 · astro-ph.SR · astro-ph.GA · physics.atom-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{DMI3K4HLTGPZIRH5ZZDCO64HKF}

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	2026-05-18T00:45:53.021204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b11b570eb999f9444fdce46277b87517ad15881faa74a78e54f176c47e87d76

Aliases

arxiv: 1704.07275 · arxiv_version: 1704.07275v1 · doi: 10.48550/arxiv.1704.07275 · pith_short_12: DMI3K4HLTGPZ · pith_short_16: DMI3K4HLTGPZIRH5 · pith_short_8: DMI3K4HL

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/DMI3K4HLTGPZIRH5ZZDCO64HKF \
  | 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: 1b11b570eb999f9444fdce46277b87517ad15881faa74a78e54f176c47e87d76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80a9e6f36508f1016c37af441941e2d436daf0177599fddd291bf5c4ff04c37d",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-04-24T15:12:18Z",
    "title_canon_sha256": "bb883906201b75e6d16ef6990d8f0acaf8ed7fd5be775967f1c517d859cf4654"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.07275",
    "kind": "arxiv",
    "version": 1
  }
}