Pith Number

pith:VE5PB7GW

pith:2008:VE5PB7GWBMRSFJFTOKSTECMRDF

not attested not anchored not stored refs pending

A Spitzer Spectroscopic Survey of Low Ionization Nuclear Emission-line Regions: Characterization of the Central Source

D. Marcu, R. P. Dudik, S. Satyapal

arxiv:0811.1252 v1 · 2008-11-08 · 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{VE5PB7GWBMRSFJFTOKSTECMRDF}

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	2026-05-18T02:35:13.992105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a93af0fcd60b2322a4b372a532099119537b402985eac358efc947942874c836

Aliases

arxiv: 0811.1252 · arxiv_version: 0811.1252v1 · doi: 10.48550/arxiv.0811.1252 · pith_short_12: VE5PB7GWBMRS · pith_short_16: VE5PB7GWBMRSFJFT · pith_short_8: VE5PB7GW

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/VE5PB7GWBMRSFJFTOKSTECMRDF \
  | 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: a93af0fcd60b2322a4b372a532099119537b402985eac358efc947942874c836

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "437873836181e99abe70227dfe89508462774f2c3f5175f3793be43e60cd5463",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-08T05:12:29Z",
    "title_canon_sha256": "d1caac54a2c586aac28d52e7e2b6b8505465ed6d9b4e6e20a42e8a240aecef8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.1252",
    "kind": "arxiv",
    "version": 1
  }
}