Pith Number

pith:DDQ5OPFK

pith:2018:DDQ5OPFKNVQDAG663LSOKERWWE

not attested not anchored not stored refs pending

Optical and UV surface brightness of translucent dark nebulae: Dust albedo, radiation field and fluorescence emission by H2

Ch. Leinert, K. Lehtinen, K. Mattila, L. K. Haikala, M. Haas, P. Vaeisaenen, Y-S. Jo

arxiv:1806.06235 v1 · 2018-06-16 · 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{DDQ5OPFKNVQDAG663LSOKERWWE}

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	2026-05-18T00:05:57.168996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18e1d73caa6d60301bdedae4e51236b12dfddab106676463ab041e7aaccaa638

Aliases

arxiv: 1806.06235 · arxiv_version: 1806.06235v1 · doi: 10.48550/arxiv.1806.06235 · pith_short_12: DDQ5OPFKNVQD · pith_short_16: DDQ5OPFKNVQDAG66 · pith_short_8: DDQ5OPFK

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/DDQ5OPFKNVQDAG663LSOKERWWE \
  | 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: 18e1d73caa6d60301bdedae4e51236b12dfddab106676463ab041e7aaccaa638

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc46df8a1f6ced31b5b28cb3b74b420303369c871f833914f9ce047fff9605f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-06-16T12:38:58Z",
    "title_canon_sha256": "b5d09639bb807cfee842b2e74be3ccf2c6f7128805b09643e6cebe70cb226b70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.06235",
    "kind": "arxiv",
    "version": 1
  }
}