Pith Number

pith:AYCFINSV

pith:2013:AYCFINSV4VKNFA6RGMFM5I35QY

not attested not anchored not stored refs pending

The many faces of the Bohr atom

Helge Kragh

arxiv:1309.4200 v1 · 2013-09-17 · physics.hist-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{AYCFINSV4VKNFA6RGMFM5I35QY}

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	2026-05-18T03:13:09.299447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0604543655e554d283d1330acea37d860563aec3000bb832a8789251c7390ea5

Aliases

arxiv: 1309.4200 · arxiv_version: 1309.4200v1 · doi: 10.48550/arxiv.1309.4200 · pith_short_12: AYCFINSV4VKN · pith_short_16: AYCFINSV4VKNFA6R · pith_short_8: AYCFINSV

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/AYCFINSV4VKNFA6RGMFM5I35QY \
  | 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: 0604543655e554d283d1330acea37d860563aec3000bb832a8789251c7390ea5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32caae787aab5de0cba62d95236295e93c653cdc988dc2f69e11dfd3281d651b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2013-09-17T06:51:15Z",
    "title_canon_sha256": "9e7be1bc6b64a089a4d36f88a154ed665e7d3e94a24cedf4b3f5275fd74e13f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4200",
    "kind": "arxiv",
    "version": 1
  }
}