Pith Number

pith:ZLJDD7HJ

pith:2025:ZLJDD7HJ5I242XZIMXK7RC2GRY

not attested not anchored not stored refs pending

Characterization of the electronic ground state of He$_2^+$ by high-resolution photoelectron spectroscopy

F. Merkt, M. Beyer, M. Holdener, N. A. Shahin, V. Wirth

arxiv:2508.08009 v1 · 2025-08-11 · physics.atom-ph · physics.chem-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{ZLJDD7HJ5I242XZIMXK7RC2GRY}

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	2026-07-05T11:52:06.386133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cad231fce9ea35cd5f2865d5f88b468e0ac8f3e24a8833862abf63b0f50dbe0c

Aliases

arxiv: 2508.08009 · arxiv_version: 2508.08009v1 · doi: 10.48550/arxiv.2508.08009 · pith_short_12: ZLJDD7HJ5I24 · pith_short_16: ZLJDD7HJ5I242XZI · pith_short_8: ZLJDD7HJ

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/ZLJDD7HJ5I242XZIMXK7RC2GRY \
  | 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: cad231fce9ea35cd5f2865d5f88b468e0ac8f3e24a8833862abf63b0f50dbe0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69247155deb87526a586f3a09998c6dcf84b6c100730ac9996d1eeaa6ac4eee2",
    "cross_cats_sorted": [
      "physics.chem-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2025-08-11T14:14:20Z",
    "title_canon_sha256": "ece34f6958dbc921aa2c20490a00462135d02a49fa08f09fe59a4cdbe5b7d405"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.08009",
    "kind": "arxiv",
    "version": 1
  }
}