Pith Number

pith:BR2WEVSD

pith:2012:BR2WEVSD6VF65BVFIEGF4HSBUN

not attested not anchored not stored refs pending

Energetic Constraints on a Rapid Gamma-Ray Flare in PKS 1222+216

Benoit Cerutti, Dmitri A. Uzdensky, Krzysztof Nalewajko, Marek Sikora, Mitchell C. Begelman

arxiv:1202.2123 v2 · 2012-02-09 · 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{BR2WEVSD6VF65BVFIEGF4HSBUN}

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	2026-05-18T01:58:31.555346Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c75625643f54bee86a5410c5e1e41a37a08602dd3b1d9cc56dd8dd580d9734a

Aliases

arxiv: 1202.2123 · arxiv_version: 1202.2123v2 · doi: 10.48550/arxiv.1202.2123 · pith_short_12: BR2WEVSD6VF6 · pith_short_16: BR2WEVSD6VF65BVF · pith_short_8: BR2WEVSD

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/BR2WEVSD6VF65BVFIEGF4HSBUN \
  | 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: 0c75625643f54bee86a5410c5e1e41a37a08602dd3b1d9cc56dd8dd580d9734a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1eeac76c2b06b8312ac1a67dc31c9cbee4043c86adf3b221624d4c2c6d357aab",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-02-09T21:00:10Z",
    "title_canon_sha256": "edea8fdf81ec19c96687aba613ca494fed0e54742c7c60958d7d4c084797de26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2123",
    "kind": "arxiv",
    "version": 2
  }
}