Pith Number

pith:NM2CE53Z

pith:2019:NM2CE53ZHDYFEF4E5PCN6OC44N

not attested not anchored not stored refs pending

Paving the way for fundamental physics tests with singly-ionized helium

C. Roth, E.L. Gr\"undeman, J.J. Krauth, K.S.E. Eikema, L.S. Dreissen, M. Collombon, M. Favier

arxiv:1910.13192 v1 · 2019-10-29 · 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{NM2CE53ZHDYFEF4E5PCN6OC44N}

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	2026-07-05T04:59:10.189980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b3422777938f0521784ebc4df385ce34be86bfeaa88251c37aae164d3c0061a

Aliases

arxiv: 1910.13192 · arxiv_version: 1910.13192v1 · doi: 10.48550/arxiv.1910.13192 · pith_short_12: NM2CE53ZHDYF · pith_short_16: NM2CE53ZHDYFEF4E · pith_short_8: NM2CE53Z

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/NM2CE53ZHDYFEF4E5PCN6OC44N \
  | 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: 6b3422777938f0521784ebc4df385ce34be86bfeaa88251c37aae164d3c0061a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afbfba46341bff463cfbe0926452b22022de7b348a68fef550bf6f7df6046529",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2019-10-29T10:56:41Z",
    "title_canon_sha256": "401f1bd66841b0e95f99ea0875614ffabd66d7b57b9ae6250f318b5e51e70c32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.13192",
    "kind": "arxiv",
    "version": 1
  }
}