Pith Number

pith:FHXCFH32

pith:2011:FHXCFH32ZHH75I4CZFUU7XVZFX

not attested not anchored not stored refs pending

Rapid VHE variability in blazars

Francesca Volpe, Frank M. Rieger

arxiv:1104.4088 v1 · 2011-04-20 · 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{FHXCFH32ZHH75I4CZFUU7XVZFX}

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	2026-05-18T04:23:47.095495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29ee229f7ac9cffea382c9694fdeb92dcbea53211f2af2e9c70c606c55282050

Aliases

arxiv: 1104.4088 · arxiv_version: 1104.4088v1 · doi: 10.48550/arxiv.1104.4088 · pith_short_12: FHXCFH32ZHH7 · pith_short_16: FHXCFH32ZHH75I4C · pith_short_8: FHXCFH32

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/FHXCFH32ZHH75I4CZFUU7XVZFX \
  | 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: 29ee229f7ac9cffea382c9694fdeb92dcbea53211f2af2e9c70c606c55282050

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "574fd389d0f6f73a5d77c744e918b5450525db9b05406053dd6cf958621976f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-04-20T18:19:39Z",
    "title_canon_sha256": "f675da5935eb507210b2659e35a93dab1607b5a97bf61beceb90b93b6bb22e69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4088",
    "kind": "arxiv",
    "version": 1
  }
}