Pith Number

pith:WP3FHXK7

pith:2013:WP3FHXK7XEDYT7EMXOS4KHNKYD

not attested not anchored not stored refs pending

Improved characterisation of intra-night optical variability of prominent AGN classes

Arti Goyal, C. S. Stalin, Gopal-Krishna, Paul J. Wiita, Ram Sagar

arxiv:1307.5831 v1 · 2013-07-22 · astro-ph.HE · 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{WP3FHXK7XEDYT7EMXOS4KHNKYD}

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	2026-05-18T01:48:41.578041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3f653dd5fb90789fc8cbba5c51daac0c137bc4b6a34a31b338082d2d8128848

Aliases

arxiv: 1307.5831 · arxiv_version: 1307.5831v1 · doi: 10.48550/arxiv.1307.5831 · pith_short_12: WP3FHXK7XEDY · pith_short_16: WP3FHXK7XEDYT7EM · pith_short_8: WP3FHXK7

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/WP3FHXK7XEDYT7EMXOS4KHNKYD \
  | 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: b3f653dd5fb90789fc8cbba5c51daac0c137bc4b6a34a31b338082d2d8128848

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b124f15b0f12b6c44b1d2874211830aae4fcd0dec21b394675573baea9d74f5",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-07-22T19:45:34Z",
    "title_canon_sha256": "ac11e2c95e0d37e8af359ae034b741f68248377a92321be5f2c21019e17b5d5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5831",
    "kind": "arxiv",
    "version": 1
  }
}