Pith Number

pith:OAJBA7S5

pith:2018:OAJBA7S5K22ENA4QB7P5E2VXSI

not attested not anchored not stored refs pending

Direct Evidence of the Benzylium and Tropylium Cations as the two long-lived Isomers of C7H7+

Aude Simon, Christine Joblin (IRAP), Pavol Jusko (IRAP), Sandra Br\"unken, Shreyak Banhatti

arxiv:1809.09375 v1 · 2018-09-25 · 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{OAJBA7S5K22ENA4QB7P5E2VXSI}

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	2026-05-18T00:04:53.558847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7012107e5d56b44683900fdfd26ab7921d99c7e98dfe8933aafd2256c44a8fdb

Aliases

arxiv: 1809.09375 · arxiv_version: 1809.09375v1 · doi: 10.48550/arxiv.1809.09375 · pith_short_12: OAJBA7S5K22E · pith_short_16: OAJBA7S5K22ENA4Q · pith_short_8: OAJBA7S5

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/OAJBA7S5K22ENA4QB7P5E2VXSI \
  | 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: 7012107e5d56b44683900fdfd26ab7921d99c7e98dfe8933aafd2256c44a8fdb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "535c320621946751af6c2adbad420dc4a0b2d4a0ba6f33e698c44598173b540a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2018-09-25T09:28:44Z",
    "title_canon_sha256": "f57ebbe6bbbaa70bb78f87b7c715e2f9e4e847e64297a4a74d58d0157a6df9d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.09375",
    "kind": "arxiv",
    "version": 1
  }
}