Pith Number

pith:DOTPZISA

pith:2024:DOTPZISALQKL7EVAB5WJFM5O7V

not attested not anchored not stored refs pending

B2 1308+326: a changing-look blazar or not?

Ashwani Pandey, Bozena Czerny, Chen Hu, Hao Zhang, Jesus Aceituno, Jian-Min Wang, Yi-Lin Wang, Yong-Jie Chen, Yu-Yang Songsheng

arxiv:2412.10552 v1 · 2024-12-13 · astro-ph.HE · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DOTPZISALQKL7EVAB5WJFM5O7V}

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	2026-07-05T09:49:17.688200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ba6fca2405c14bf92a00f6c92b3aefd54811be2a2b51f010678fb60219e7352

Aliases

arxiv: 2412.10552 · arxiv_version: 2412.10552v1 · doi: 10.48550/arxiv.2412.10552 · pith_short_12: DOTPZISALQKL · pith_short_16: DOTPZISALQKL7EVA · pith_short_8: DOTPZISA

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/DOTPZISALQKL7EVAB5WJFM5O7V \
  | 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: 1ba6fca2405c14bf92a00f6c92b3aefd54811be2a2b51f010678fb60219e7352

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f5632967224c56aa322a908ed6065a988d78b223617cc9fba90755c2ad5527b",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2024-12-13T20:54:51Z",
    "title_canon_sha256": "798838f016f2b8074a2fbd95a6f461cd6306848798fd7578401807a85126e261"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2412.10552",
    "kind": "arxiv",
    "version": 1
  }
}