Pith Number

pith:QGKOEPSC

pith:2009:QGKOEPSC4EV4TPTOBPMYJEK746

not attested not anchored not stored refs pending

SSC radiation in BL Lac sources, the end of the tether

A. Cavaliere, A. Paggi, F. D'Ammando, F. Massaro, F. Vagnetti, M. Tavani, V. Vittorini

arxiv:0907.2863 v2 · 2009-07-16 · astro-ph.CO · 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{QGKOEPSC4EV4TPTOBPMYJEK746}

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	2026-05-18T02:12:56.545301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8194e23e42e12bc9be6e0bd984915fe79dd8accb12157c36a89f65bbc056a500

Aliases

arxiv: 0907.2863 · arxiv_version: 0907.2863v2 · doi: 10.48550/arxiv.0907.2863 · pith_short_12: QGKOEPSC4EV4 · pith_short_16: QGKOEPSC4EV4TPTO · pith_short_8: QGKOEPSC

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/QGKOEPSC4EV4TPTOBPMYJEK746 \
  | 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: 8194e23e42e12bc9be6e0bd984915fe79dd8accb12157c36a89f65bbc056a500

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26c3dacf10118d31cd6a0afd8aded09177b2cebdc454e2cb41a56a56ab73321f",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-16T15:12:57Z",
    "title_canon_sha256": "346ea214623b8d22f53e4ae4cbcd254fdd29fb83bb3b0d3d834cbfacbf7ce78a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2863",
    "kind": "arxiv",
    "version": 2
  }
}