Pith Number

pith:MHR45POE

pith:2017:MHR45POEP7R4SNALZTC5JXMMAO

not attested not anchored not stored refs pending

High-resolution spectroscopy of He$_2^+$ using Rydberg-series extrapolation and Zeeman-decelerated supersonic beams of metastable He$_2$

Fr\'ed\'eric Merkt, Luca Semeria, Paul Jansen

arxiv:1701.03646 v1 · 2017-01-13 · physics.chem-ph

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MHR45POEP7R4SNALZTC5JXMMAO}

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	2026-05-18T00:52:54.255740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61e3cebdc47fe3c9340bccc5d4dd8c039ac17c538fb2c8910707929e5314b6a1

Aliases

arxiv: 1701.03646 · arxiv_version: 1701.03646v1 · doi: 10.48550/arxiv.1701.03646 · pith_short_12: MHR45POEP7R4 · pith_short_16: MHR45POEP7R4SNAL · pith_short_8: MHR45POE

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/MHR45POEP7R4SNALZTC5JXMMAO \
  | 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: 61e3cebdc47fe3c9340bccc5d4dd8c039ac17c538fb2c8910707929e5314b6a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ec6f8a80258247013a9a3bacdf0a33fcc9d67d553318ff8aac68ca1b4f202fa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2017-01-13T12:40:57Z",
    "title_canon_sha256": "26f533415ab43cc651e894a1dca5acd560dd9f2b3ac14cf103cf5fdc6eec957c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.03646",
    "kind": "arxiv",
    "version": 1
  }
}