Pith Number

pith:YBO4VKX2

pith:2013:YBO4VKX26LMTGHJWCLSKY4GP6E

not attested not anchored not stored refs pending

On the hadronic cascade scenario for extreme BL Lacs

Fabrizio Tavecchio

arxiv:1312.4281 v1 · 2013-12-16 · 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{YBO4VKX26LMTGHJWCLSKY4GP6E}

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	2026-05-18T01:45:50.363606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c05dcaaafaf2d9331d3612e4ac70cff12440019002eadde300648e9a9574dd52

Aliases

arxiv: 1312.4281 · arxiv_version: 1312.4281v1 · doi: 10.48550/arxiv.1312.4281 · pith_short_12: YBO4VKX26LMT · pith_short_16: YBO4VKX26LMTGHJW · pith_short_8: YBO4VKX2

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/YBO4VKX26LMTGHJWCLSKY4GP6E \
  | 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: c05dcaaafaf2d9331d3612e4ac70cff12440019002eadde300648e9a9574dd52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bd40bdc26d06f2523723426acb080a9a43550a86b18a28e4e3b41b317731c3b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-12-16T09:59:51Z",
    "title_canon_sha256": "b305a6b1d6903ae63168630a91997d3931a5986892fc410c3ddc6f6357c5ef35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.4281",
    "kind": "arxiv",
    "version": 1
  }
}