Pith Number

pith:DJQCPZ7X

pith:2013:DJQCPZ7XKD4ERJOZXEMTQPWKDN

not attested not anchored not stored refs pending

Short time-scale periodicity in OJ 287

Mauri Valtonen, Pauli Pihajoki, Stefano Ciprini

arxiv:1307.1113 v1 · 2013-07-03 · 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{DJQCPZ7XKD4ERJOZXEMTQPWKDN}

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	2026-05-18T01:49:00.072402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a6027e7f750f848a5d9b919383eca1b7ade6c4fa194d82ca974894ac88b8e45

Aliases

arxiv: 1307.1113 · arxiv_version: 1307.1113v1 · doi: 10.48550/arxiv.1307.1113 · pith_short_12: DJQCPZ7XKD4E · pith_short_16: DJQCPZ7XKD4ERJOZ · pith_short_8: DJQCPZ7X

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/DJQCPZ7XKD4ERJOZXEMTQPWKDN \
  | 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: 1a6027e7f750f848a5d9b919383eca1b7ade6c4fa194d82ca974894ac88b8e45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce4a9064b85f8ec89a77329e9afab8df645ffa95139454a832e7b79730dc52f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-07-03T19:15:35Z",
    "title_canon_sha256": "042129ce83dd7075bad60aabde2ac55ad133825c43a0cbebf7a4ff617f5ea554"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.1113",
    "kind": "arxiv",
    "version": 1
  }
}