Pith Number

pith:NSFKV7FO

pith:2016:NSFKV7FO64JP7ZVPUJCEDUIZBI

not attested not anchored not stored refs pending

A new approach to the variability characterization of active galactic nuclei

Fausto Vagnetti, Marco Antonucci, Riccardo Middei, Roberto Serafinelli

arxiv:1601.05953 v1 · 2016-01-22 · astro-ph.GA · 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{NSFKV7FO64JP7ZVPUJCEDUIZBI}

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	2026-05-18T01:18:38.114095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c8aaafcaef712ffe6afa24441d1190a0a61d55b2710b8aa0c5c31cf5758e062

Aliases

arxiv: 1601.05953 · arxiv_version: 1601.05953v1 · doi: 10.48550/arxiv.1601.05953 · pith_short_12: NSFKV7FO64JP · pith_short_16: NSFKV7FO64JP7ZVP · pith_short_8: NSFKV7FO

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/NSFKV7FO64JP7ZVPUJCEDUIZBI \
  | 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: 6c8aaafcaef712ffe6afa24441d1190a0a61d55b2710b8aa0c5c31cf5758e062

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39cf010291f07b8223078229c07aac549325f20865832bf22c0b425d262eebd0",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-01-22T10:49:06Z",
    "title_canon_sha256": "03693a9125877c8ba3caee1fbf9829aa2c87b36365592d122beb72c85a2418e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.05953",
    "kind": "arxiv",
    "version": 1
  }
}