Pith Number

pith:DPB2KE5I

pith:2014:DPB2KE5IZ7NLTARXZJUFVGEU6Q

not attested not anchored not stored refs pending

An Anomalous Extinction Law in the Cep OB3b Young Cluster: Evidence for dust processing during gas dispersal

Jakub J. Prchlik, Judith L. Pipher, Rob D. Jeffries, Robert A. Gutermuth, S. Thomas Megeath, Thomas S. Allen, Tim Naylor

arxiv:1402.1514 v1 · 2014-02-06 · 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{DPB2KE5IZ7NLTARXZJUFVGEU6Q}

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	2026-05-18T01:44:46.702388Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bc3a513a8cfdab98237ca685a9894f4165f32b2b04fbfe848c5bd9df7e9ee32

Aliases

arxiv: 1402.1514 · arxiv_version: 1402.1514v1 · doi: 10.48550/arxiv.1402.1514 · pith_short_12: DPB2KE5IZ7NL · pith_short_16: DPB2KE5IZ7NLTARX · pith_short_8: DPB2KE5I

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/DPB2KE5IZ7NLTARXZJUFVGEU6Q \
  | 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: 1bc3a513a8cfdab98237ca685a9894f4165f32b2b04fbfe848c5bd9df7e9ee32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c3a5a90a40b7ae166a8e312379d922c645c7059693ed3ca5ea949ecab95cd63",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-02-06T22:18:57Z",
    "title_canon_sha256": "be2a77b1452c445ef98a9a322cd2bdb4c82f0933c7ce7732282bac75ca9a5883"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.1514",
    "kind": "arxiv",
    "version": 1
  }
}