Pith Number

pith:4WY62QFG

pith:2007:4WY62QFGOBRBXTEYB6G4MDAPJD

not attested not anchored not stored refs pending

PAH chemistry and IR emission from circumstellar disks

C.P. Dullemond, E.F. van Dishoeck, J.-C. Augereau, K.M. Pontoppidan, R. Visser, V.C. Geers

arxiv:astro-ph/0701606 v1 · 2007-01-22 · 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{4WY62QFGOBRBXTEYB6G4MDAPJD}

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	2026-07-04T17:07:27.128398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5b1ed40a670621bcc980f8dc60c0f48faf0679c90a93c286137363b7cdf4c6a

Aliases

arxiv: astro-ph/0701606 · arxiv_version: astro-ph/0701606v1 · doi: 10.48550/arxiv.astro-ph/0701606 · pith_short_12: 4WY62QFGOBRB · pith_short_16: 4WY62QFGOBRBXTEY · pith_short_8: 4WY62QFG

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/4WY62QFGOBRBXTEYB6G4MDAPJD \
  | 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: e5b1ed40a670621bcc980f8dc60c0f48faf0679c90a93c286137363b7cdf4c6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66250e450c625e529035e8b92ce32a91d4477490ccbef27e83ea7d9c3e4fae8e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-22T11:33:24Z",
    "title_canon_sha256": "58a3184442e095cd5b7f63331dd6634b7200406d55e7cb3cdbdfec749e016b68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701606",
    "kind": "arxiv",
    "version": 1
  }
}