Pith Number

pith:G2FQ2OTQ

pith:2025:G2FQ2OTQ6EEVEWYONSKVPZ4BCT

not attested not anchored not stored refs pending

Discovery of interstellar phenalene ($c$-C$_{13}$H$_{10}$): A new piece for the chemical puzzle of PAHs in space

Alberto Lesarri, Amanda L. Steber, Bel\'en Tercero, Carlos Cabezas, Crist\'obal P\'erez, Daniel Villar-Castro, Dolores P\'erez, Germ\'an Molpeceres, Jos\'e Cernicharo, Marcelino Ag\'undez, Nuria Marcelino, Pablo de Vicente, Ra\'ul Fuentetaja

arxiv:2508.13857 v1 · 2025-08-19 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G2FQ2OTQ6EEVEWYONSKVPZ4BCT}

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	2026-07-05T12:07:40.598928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

368b0d3a70f109525b0e6c9557e78114c5222a5f6ae4c1bd512c93e0c0b79df5

Aliases

arxiv: 2508.13857 · arxiv_version: 2508.13857v1 · doi: 10.48550/arxiv.2508.13857 · pith_short_12: G2FQ2OTQ6EEV · pith_short_16: G2FQ2OTQ6EEVEWYO · pith_short_8: G2FQ2OTQ

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/G2FQ2OTQ6EEVEWYONSKVPZ4BCT \
  | 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: 368b0d3a70f109525b0e6c9557e78114c5222a5f6ae4c1bd512c93e0c0b79df5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6426efac0958c7d45b6933adde09503876a240b074e10fe6c4080f2485d9df33",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-08-19T14:17:40Z",
    "title_canon_sha256": "d2fb7efccccc110f844dd8709091dd572bb59c3bd91c2c6fb97a9857d58652b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.13857",
    "kind": "arxiv",
    "version": 1
  }
}