Pith Number

pith:JAQIVOBS

pith:2009:JAQIVOBS4APUWTKIFA4C2XEZCK

not attested not anchored not stored refs pending

The Contribution from Scattered Light to Quasar Galaxy Hosts

A. Capetti, A. Robinson, D. J. Axon, S. Young

arxiv:0905.4012 v1 · 2009-05-25 · 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{JAQIVOBS4APUWTKIFA4C2XEZCK}

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	2026-05-18T04:29:42.938837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48208ab832e01f4b4d4828382d5c9912b6f7255a7e7e0c9565816d597fff220a

Aliases

arxiv: 0905.4012 · arxiv_version: 0905.4012v1 · doi: 10.48550/arxiv.0905.4012 · pith_short_12: JAQIVOBS4APU · pith_short_16: JAQIVOBS4APUWTKI · pith_short_8: JAQIVOBS

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/JAQIVOBS4APUWTKIFA4C2XEZCK \
  | 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: 48208ab832e01f4b4d4828382d5c9912b6f7255a7e7e0c9565816d597fff220a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fb74d4f3abab535a64c8e90c5113b6e6b82e30289d7245dc9a5eaa029df6e1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-25T13:48:46Z",
    "title_canon_sha256": "7e5e638d7654564b5ce8c2694062481430800155fc945c5035cd8decf87a6506"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.4012",
    "kind": "arxiv",
    "version": 1
  }
}