Pith Number

pith:U4RVC4XL

pith:2010:U4RVC4XL52GE54VPJNOYAJEIKV

not attested not anchored not stored refs pending

The innermost dusty structure in active galactic nuclei as probed by the Keck interferometer

(2) UCSB, (3) NSF, (4) ISAS, (5) SSO), Gerd Weigelt (1), Ken Levin (5) ((1) MPIfR, Konrad R.W. Tristram (1), Makoto Kishimoto (1), Richard Barvainis (3), Robert Antonucci (2), Sebastian F. Hoenig (2), Takayuki Kotani (4)

arxiv:1012.5359 v2 · 2010-12-24 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4RVC4XL52GE54VPJNOYAJEIKV}

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	2026-05-18T02:04:17.801130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7235172ebee8c4ef2af4b5d8024885545e3f3b8d0aa937c984b2e823d112a59

Aliases

arxiv: 1012.5359 · arxiv_version: 1012.5359v2 · doi: 10.48550/arxiv.1012.5359 · pith_short_12: U4RVC4XL52GE · pith_short_16: U4RVC4XL52GE54VP · pith_short_8: U4RVC4XL

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/U4RVC4XL52GE54VPJNOYAJEIKV \
  | 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: a7235172ebee8c4ef2af4b5d8024885545e3f3b8d0aa937c984b2e823d112a59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "222a16797ea8c1ee0fa0e0789eead13d5d9e3f82cc8f4f3a838da6dd4693407d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-12-24T08:03:55Z",
    "title_canon_sha256": "225c8880ebf4e7cb286aa9a685c650f98db2fb5e869629be57f269789499c9bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.5359",
    "kind": "arxiv",
    "version": 2
  }
}