Pith Number

pith:XOYHKMMA

pith:2015:XOYHKMMA4PV6NMN4F6CXSMI5LI

not attested not anchored not stored refs pending

X-Ray Absorption and Scattering by Interstellar Grains

Bruce T. Draine, John A. Hoffman

arxiv:1509.08987 v2 · 2015-09-30 · astro-ph.HE · astro-ph.GA · astro-ph.IM · 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{XOYHKMMA4PV6NMN4F6CXSMI5LI}

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	2026-05-18T01:21:19.372906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbb0753180e3ebe6b1bc2f8579311d5a0c685501d2400cd8229632702017e964

Aliases

arxiv: 1509.08987 · arxiv_version: 1509.08987v2 · doi: 10.48550/arxiv.1509.08987 · pith_short_12: XOYHKMMA4PV6 · pith_short_16: XOYHKMMA4PV6NMN4 · pith_short_8: XOYHKMMA

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/XOYHKMMA4PV6NMN4F6CXSMI5LI \
  | 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: bbb0753180e3ebe6b1bc2f8579311d5a0c685501d2400cd8229632702017e964

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdbe6416ddccdbc11a2382c9f707e5c962ed6f37afc91fee90381389b3cd9ec3",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-09-30T01:23:42Z",
    "title_canon_sha256": "781a5e41da45ec649fc6c6c72313722a18f4d09b12c2b1e773841f3a6a439a29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.08987",
    "kind": "arxiv",
    "version": 2
  }
}