Pith Number

pith:BLMF5EKM

pith:2013:BLMF5EKM2HU2JFZOU4WXPVYIUI

not attested not anchored not stored refs pending

Hydrogen atom as a quantum-classical hybrid system

Biao Wu, Fei Zhan

arxiv:1302.1628 v2 · 2013-02-07 · 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{BLMF5EKM2HU2JFZOU4WXPVYIUI}

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	2026-05-18T03:12:34.974630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ad85e914cd1e9a4972ea72d77d708a22781444a8ceeb2236564abe87cb01af8

Aliases

arxiv: 1302.1628 · arxiv_version: 1302.1628v2 · doi: 10.48550/arxiv.1302.1628 · pith_short_12: BLMF5EKM2HU2 · pith_short_16: BLMF5EKM2HU2JFZO · pith_short_8: BLMF5EKM

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/BLMF5EKM2HU2JFZOU4WXPVYIUI \
  | 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: 0ad85e914cd1e9a4972ea72d77d708a22781444a8ceeb2236564abe87cb01af8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ffe19be1bbe5610e4a8a8fe709c6bf0394a8782908689befcb9eba7dde26185",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-02-07T02:00:53Z",
    "title_canon_sha256": "d5ca51f017da88a0484ae0e2695c2a7a5499f25838959ec6a3f91bcc50c0de35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.1628",
    "kind": "arxiv",
    "version": 2
  }
}