Pith Number

pith:YENB7GKH

pith:2018:YENB7GKH72D2FFSFGVXG7P22VX

not attested not anchored not stored refs pending

Multi-color optical monitoring of ten blazars from 2005 to 2011

Jianghua Wu, Jun Ma, Nankun Meng, Xiaoyuan Zhang, Xu Zhou

arxiv:1807.02926 v1 · 2018-07-09 · 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{YENB7GKH72D2FFSFGVXG7P22VX}

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	2026-05-18T00:08:38.292758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c11a1f9947fe87a29645356e6fbf5aade208339e4fdf77fabac0c1e9fd1f79b4

Aliases

arxiv: 1807.02926 · arxiv_version: 1807.02926v1 · doi: 10.48550/arxiv.1807.02926 · pith_short_12: YENB7GKH72D2 · pith_short_16: YENB7GKH72D2FFSF · pith_short_8: YENB7GKH

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/YENB7GKH72D2FFSFGVXG7P22VX \
  | 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: c11a1f9947fe87a29645356e6fbf5aade208339e4fdf77fabac0c1e9fd1f79b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2ba530a8ab5b798c5a53add7b0ff83f0a6ed252dd2a6aaad75d9f9db0d14cb9",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-09T03:26:17Z",
    "title_canon_sha256": "9e9765b37118b94e3b1174fc983c6f2170a254011da43c69555e7c11ebc4871d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.02926",
    "kind": "arxiv",
    "version": 1
  }
}