Pith Number

pith:B2OPCE3A

pith:2022:B2OPCE3AKWWKFR4SXLP7W5VWSB

not attested not anchored not stored refs pending

The Classification of Blazars Candidates of Uncertain Types

De-Xiang Wu, Guo-Hai Chen, Hu-Bing Xiao, Jiang-He Yang, Jing-Chao Liang, Jun-Hui Fan, Ke-Yin Chen, Wen-Xin Yang, Yu-Hai Yuan

arxiv:2208.12917 v1 · 2022-08-27 · 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{B2OPCE3AKWWKFR4SXLP7W5VWSB}

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	2026-07-05T04:52:01.056900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e9cf1136055aca2c792badffb76b690509aa18886af034def4b33079fd74963

Aliases

arxiv: 2208.12917 · arxiv_version: 2208.12917v1 · doi: 10.48550/arxiv.2208.12917 · pith_short_12: B2OPCE3AKWWK · pith_short_16: B2OPCE3AKWWKFR4S · pith_short_8: B2OPCE3A

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/B2OPCE3AKWWKFR4SXLP7W5VWSB \
  | 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: 0e9cf1136055aca2c792badffb76b690509aa18886af034def4b33079fd74963

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b193d8f431d336c9dace9a7dc418e4d74b82f15b6c546dd3e5a906206c6e1336",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-08-27T03:07:50Z",
    "title_canon_sha256": "0b4c19bab0bbb09274c7354a1a8d7d58bcf70f5b99b9d43600a8bb098d1c53f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.12917",
    "kind": "arxiv",
    "version": 1
  }
}