Pith Number

pith:F3FH7GPM

pith:2010:F3FH7GPMDFPEVCRATWYZGA2IYY

not attested not anchored not stored refs pending

Is Low-Frequency-Peaked BL Lac Object OJ 287 a TeV Emitter?

Bai Jin-Ming, Chen Liang

arxiv:1009.2321 v1 · 2010-09-13 · 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{F3FH7GPMDFPEVCRATWYZGA2IYY}

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	2026-05-18T04:30:48.127435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2eca7f99ec195e4a8a209db1930348c637475c09da055a4b35bc5254b42233dd

Aliases

arxiv: 1009.2321 · arxiv_version: 1009.2321v1 · doi: 10.48550/arxiv.1009.2321 · pith_short_12: F3FH7GPMDFPE · pith_short_16: F3FH7GPMDFPEVCRA · pith_short_8: F3FH7GPM

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/F3FH7GPMDFPEVCRATWYZGA2IYY \
  | 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: 2eca7f99ec195e4a8a209db1930348c637475c09da055a4b35bc5254b42233dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6c5adf3baf4d737c0df90a46e44ca3658f99afecd8560858f2020188c9f91ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-09-13T08:28:18Z",
    "title_canon_sha256": "f77b06fcc377f9afeba6fd14e56aebc99116fbe149dc18d5fd14457b47516eda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.2321",
    "kind": "arxiv",
    "version": 1
  }
}