Pith Number

pith:HPPHRDBB

pith:2007:HPPHRDBBGIUUCTTRLZDF5BGQDY

not attested not anchored not stored refs pending

Understanding the Chemical Complexity in Circumstellar Envelopes of C-rich AGB Stars: the Case of IRC +10216

A. J. Apponi, E. D. Tenenbaum, J. Cernicharo, J. P. Fonfria Exposito, J. R. Pardo, L. M. Ziurys, M. Agundez, M. Guelin

arxiv:astro-ph/0702491 v2 · 2007-02-19 · astro-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{HPPHRDBBGIUUCTTRLZDF5BGQDY}

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	2026-07-04T15:25:02.429246Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bde788c213229414e715e465e84d01e3746b94be40b4fa388fa8abd455cd9d1

Aliases

arxiv: astro-ph/0702491 · arxiv_version: astro-ph/0702491v2 · doi: 10.48550/arxiv.astro-ph/0702491 · pith_short_12: HPPHRDBBGIUU · pith_short_16: HPPHRDBBGIUUCTTR · pith_short_8: HPPHRDBB

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/HPPHRDBBGIUUCTTRLZDF5BGQDY \
  | 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: 3bde788c213229414e715e465e84d01e3746b94be40b4fa388fa8abd455cd9d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd4e11208b5b490fe49273e04eab4dd1b387f8fded88af769e6b3280c6ca554b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-02-19T18:28:31Z",
    "title_canon_sha256": "1346370dd6fcb190b789db3503995a3a25ca150957f07157c57d32ec3073efbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0702491",
    "kind": "arxiv",
    "version": 2
  }
}