Pith Number

pith:BFG2U6WI

pith:2012:BFG2U6WIXNJ3WD2V5ZD2OC2IXW

not attested not anchored not stored refs pending

Changes Of Dust Opacity With Density in the Orion A Molecular Cloud

Alain Abergel, Arabindo Roy, Danae Polychroni, Doris Arzoumanian, Glenn White, James Di Francesco, Leonardo Testi, Nicola Schneider, Peter G. Martin, Philippe Andre, Quang Nguyen-Luong, Stefano Pezzuto, Sylvain Bontemps, Tracey Hill, Vera Konyves

arxiv:1211.6475 v1 · 2012-11-27 · 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{BFG2U6WIXNJ3WD2V5ZD2OC2IXW}

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	2026-05-18T01:52:54.094692Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

094daa7ac8bb53bb0f55ee47a70b48bd9f41065c8d602019b01e80c2e3d8f51d

Aliases

arxiv: 1211.6475 · arxiv_version: 1211.6475v1 · doi: 10.48550/arxiv.1211.6475 · pith_short_12: BFG2U6WIXNJ3 · pith_short_16: BFG2U6WIXNJ3WD2V · pith_short_8: BFG2U6WI

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/BFG2U6WIXNJ3WD2V5ZD2OC2IXW \
  | 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: 094daa7ac8bb53bb0f55ee47a70b48bd9f41065c8d602019b01e80c2e3d8f51d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a24cda9e72f9601432bc428dd91023dbb2ed385999b48fde909db75083b257f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-11-27T23:21:22Z",
    "title_canon_sha256": "3db343ef3ff535760f9bb5d135ac25dd7a946256721089769e0adec5ba5c2d74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.6475",
    "kind": "arxiv",
    "version": 1
  }
}