Pith Number

pith:GFUC2H3Q

pith:2009:GFUC2H3QXHRWV7N5SLU4SPCOJ5

not attested not anchored not stored refs pending

Mid-Infrared Extinction and its Variation with Galactic Longitude

2), (2) Department of Physics, A. Li (2) ((1) Department of Astronomy, Astronomy, Beijing, Beijing Normal University, B. W. Jiang (1), China, Columbia, Jian Gao (1, MO, University of Missouri, USA)

arxiv:0910.3037 v2 · 2009-10-16 · astro-ph.GA · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GFUC2H3QXHRWV7N5SLU4SPCOJ5}

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	2026-05-18T02:34:18.608310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31682d1f70b9e36afdbd92e9c93c4e4f4fa917f9f06b086d0713474167fe44da

Aliases

arxiv: 0910.3037 · arxiv_version: 0910.3037v2 · doi: 10.48550/arxiv.0910.3037 · pith_short_12: GFUC2H3QXHRW · pith_short_16: GFUC2H3QXHRWV7N5 · pith_short_8: GFUC2H3Q

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/GFUC2H3QXHRWV7N5SLU4SPCOJ5 \
  | 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: 31682d1f70b9e36afdbd92e9c93c4e4f4fa917f9f06b086d0713474167fe44da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9937ffbab36db854540362ae4039833a37ee537f9458bcf07d42caae8c19b56a",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-10-16T04:56:01Z",
    "title_canon_sha256": "ad762345fe7d264a73a5d073a4ad1bad31451e3e5659b319ccf2f440d24c9e07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.3037",
    "kind": "arxiv",
    "version": 2
  }
}