Pith Number

pith:FBN45TH7

pith:2010:FBN45TH7RXINZEZOOPMLXE5IYC

not attested not anchored not stored refs pending

Selecting Quasars by their Intrinsic Variability

Gregory Dobler, Hans-Walter Rix, Joseph F. Hennawi, Kasper B. Schmidt, Philip J. Marshall, Sebastian Jester

arxiv:1002.2642 v3 · 2010-02-12 · 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{FBN45TH7RXINZEZOOPMLXE5IYC}

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.

Cited by

1 paper in Pith

The DESI Experiment Part I: Science,Targeting, and Survey Design

Receipt and verification

First computed	2026-05-18T02:09:08.675080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

285bceccff8dd0dc932e73d8bb93a8c097dbcb701e607927de59509f0282cf43

Aliases

arxiv: 1002.2642 · arxiv_version: 1002.2642v3 · doi: 10.48550/arxiv.1002.2642 · pith_short_12: FBN45TH7RXIN · pith_short_16: FBN45TH7RXINZEZO · pith_short_8: FBN45TH7

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/FBN45TH7RXINZEZOOPMLXE5IYC \
  | 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: 285bceccff8dd0dc932e73d8bb93a8c097dbcb701e607927de59509f0282cf43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9b675624316000411a90a671a13b1be6eb97049a5d36d49be33c9663fadc02a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-02-12T22:08:38Z",
    "title_canon_sha256": "10e9ab30290872a186b3ababb0de365d7355db504a1fd95ec4922d5891e56dd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.2642",
    "kind": "arxiv",
    "version": 3
  }
}