Pith Number

pith:5VTLFK2Y

pith:2014:5VTLFK2YJYD7BV6NJZV5DVWUTN

not attested not anchored not stored refs pending

High-precision spectroscopy of the forbidden 2 3S1 - 2 1P1 transition in quantum degenerate metastable helium

Remy Notermans, Wim Vassen

arxiv:1404.1759 v1 · 2014-04-07 · physics.atom-ph · cond-mat.quant-gas · quant-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{5VTLFK2YJYD7BV6NJZV5DVWUTN}

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	2026-05-18T02:48:56.302673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed66b2ab584e07f0d7cd4e6bd1d6d49b4169259376bb652f1c273ef01610b817

Aliases

arxiv: 1404.1759 · arxiv_version: 1404.1759v1 · doi: 10.48550/arxiv.1404.1759 · pith_short_12: 5VTLFK2YJYD7 · pith_short_16: 5VTLFK2YJYD7BV6N · pith_short_8: 5VTLFK2Y

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/5VTLFK2YJYD7BV6NJZV5DVWUTN \
  | 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: ed66b2ab584e07f0d7cd4e6bd1d6d49b4169259376bb652f1c273ef01610b817

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3630fbdc6de73ea0408831ebb01c5bc1f1abcb1ba2ffc944006448df566e848a",
    "cross_cats_sorted": [
      "cond-mat.quant-gas",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2014-04-07T12:10:17Z",
    "title_canon_sha256": "5d70934fb549d1cc7500619718919c37d8f392693f07e83aa07192707989e4e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.1759",
    "kind": "arxiv",
    "version": 1
  }
}