Pith Number

pith:BO5UVJ4Q

pith:2008:BO5UVJ4Q55FJT2EQ2SVXSZLJCE

not attested not anchored not stored refs pending

Toward understanding the 3.4 micron and 9.7 micron extinction feature variations from the local diffuse interstellar medium to the Galactic center

2), Aigen Li (2) ((1) Beijing Normal University, Beijing, B. W. Jiang (1), China; (2) University of Missouri, Columbia, Jian Gao (1, MO, USA)

arxiv:0812.2016 v2 · 2008-12-10 · 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{BO5UVJ4Q55FJT2EQ2SVXSZLJCE}

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	2026-05-18T02:35:13.424978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bbb4aa790ef4a99e890d4ab796569110cf639c7db5afbf4417d172e3b8e0632

Aliases

arxiv: 0812.2016 · arxiv_version: 0812.2016v2 · doi: 10.48550/arxiv.0812.2016 · pith_short_12: BO5UVJ4Q55FJ · pith_short_16: BO5UVJ4Q55FJT2EQ · pith_short_8: BO5UVJ4Q

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/BO5UVJ4Q55FJT2EQ2SVXSZLJCE \
  | 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: 0bbb4aa790ef4a99e890d4ab796569110cf639c7db5afbf4417d172e3b8e0632

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e6886d819eda3a975bf991118749d352927096b56ba7e8b4d4ca5bd4d926266",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-10T20:35:10Z",
    "title_canon_sha256": "9d8ee5fea3a6ebb51e87a276fa87e7582addb5b72c3788357eab50314a3197f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.2016",
    "kind": "arxiv",
    "version": 2
  }
}