Pith Number

pith:SCVCACA4

pith:2013:SCVCACA4PZ4XI2YVKWCFRPECXL

not attested not anchored not stored refs pending

Variability and spectral variation of 3C 66A

H. Y. Guo, Jianghua Wu, Shao Ming Hu, X. Zhang, X. Zhou, Y. G. Zheng

arxiv:1309.2429 v1 · 2013-09-10 · 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{SCVCACA4PZ4XI2YVKWCFRPECXL}

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	2026-05-18T03:01:56.151992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90aa20081c7e79746b15558458bc82bac002e10ae4a9b51ea1af7b3563bc8479

Aliases

arxiv: 1309.2429 · arxiv_version: 1309.2429v1 · doi: 10.48550/arxiv.1309.2429 · pith_short_12: SCVCACA4PZ4X · pith_short_16: SCVCACA4PZ4XI2YV · pith_short_8: SCVCACA4

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/SCVCACA4PZ4XI2YVKWCFRPECXL \
  | 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: 90aa20081c7e79746b15558458bc82bac002e10ae4a9b51ea1af7b3563bc8479

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "840798f7e6ef0f1be625e87266d51601a3a350c14b3af76dd48af63ac99836b6",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-09-10T09:31:38Z",
    "title_canon_sha256": "09d7f1b4b8050cdf6653f0059a3dbf3f4c729dccf96a8c3fc27eb1abf71a064b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2429",
    "kind": "arxiv",
    "version": 1
  }
}