Pith Number

pith:D7G6DXLS

pith:2019:D7G6DXLSXXTL5FZF2I4RFQQYFC

not attested not anchored not stored refs pending

Laboratory photo-chemistry of covalently bonded fluorene clusters: observation of an interesting PAH bowl-forming mechanism

Alexander G. G. M. Tielens, Harold Linnartz, Junfeng Zhen, Tao Chen, Weiwei Zhang, Yubing Si

arxiv:1901.03325 v1 · 2019-01-10 · astro-ph.IM · astro-ph.GA · 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{D7G6DXLSXXTL5FZF2I4RFQQYFC}

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	2026-05-17T23:53:22.947345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fcde1dd72bde6be9725d23912c21828ba826ddbb5b886bbb91f90f38ed26df8

Aliases

arxiv: 1901.03325 · arxiv_version: 1901.03325v1 · doi: 10.48550/arxiv.1901.03325 · pith_short_12: D7G6DXLSXXTL · pith_short_16: D7G6DXLSXXTL5FZF · pith_short_8: D7G6DXLS

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/D7G6DXLSXXTL5FZF2I4RFQQYFC \
  | 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: 1fcde1dd72bde6be9725d23912c21828ba826ddbb5b886bbb91f90f38ed26df8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cae4e40f4100cf40212546849dd954a1f847c8a378421e819ad057626a5afcbf",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-01-10T05:38:04Z",
    "title_canon_sha256": "78144cd3e13b3ae076eeeafe0ca6ba8b6e3aba2e21d2f0eea199f4b688dfab77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03325",
    "kind": "arxiv",
    "version": 1
  }
}