Pith Number

pith:XC7DZWHV

pith:2009:XC7DZWHVD3SXBKD3PMWRUGPXMN

not attested not anchored not stored refs pending

Highly Variable Objects in the Palomar-QUEST Survey: A Blazar Search using Optical Variability

Andrew Drake, Anne Bauer, Ashish Mahabal, Charles Baltay, Ciro Donalek, David Rabinowitz, Eilat Glikman, Jonathan Jerke, Matthew Graham, Nancy Ellman, Paolo Coppi, Richard Scalzo, Roy Williams, S. G. Djorgovski

arxiv:0909.0014 v2 · 2009-08-31 · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XC7DZWHVD3SXBKD3PMWRUGPXMN}

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	2026-05-18T02:34:37.008182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8be3cd8f51ee570a87b7b2d1a19f7635299bf7f50fdc13a5019ff58c15b4274

Aliases

arxiv: 0909.0014 · arxiv_version: 0909.0014v2 · doi: 10.48550/arxiv.0909.0014 · pith_short_12: XC7DZWHVD3SX · pith_short_16: XC7DZWHVD3SXBKD3 · pith_short_8: XC7DZWHV

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/XC7DZWHVD3SXBKD3PMWRUGPXMN \
  | 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: b8be3cd8f51ee570a87b7b2d1a19f7635299bf7f50fdc13a5019ff58c15b4274

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f05c1cbe173c809fa1b7aee273b33d374263b47200e35145b0695cce838845ac",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-08-31T21:17:02Z",
    "title_canon_sha256": "3533e4e0e586eafad81d67c67445fc093cfd71b813fd1a2f18b2930ac066cd6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0014",
    "kind": "arxiv",
    "version": 2
  }
}