Pith Number

pith:II5HWKAC

pith:2011:II5HWKACFYIVI4HMGJBMWTVPXB

not attested not anchored not stored refs pending

BL Lac objects with optical jets: PKS 2201+044, 3C 371 and PKS 0521-365

A. Treves, E. Liuzzo, R. Falomo

arxiv:1105.5226 v1 · 2011-05-26 · 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{II5HWKACFYIVI4HMGJBMWTVPXB}

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	2026-05-18T02:21:49.562728Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

423a7b28022e115470ec3242cb4eafb86f47c19634e896109d9fab9f76157093

Aliases

arxiv: 1105.5226 · arxiv_version: 1105.5226v1 · doi: 10.48550/arxiv.1105.5226 · pith_short_12: II5HWKACFYIV · pith_short_16: II5HWKACFYIVI4HM · pith_short_8: II5HWKAC

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/II5HWKACFYIVI4HMGJBMWTVPXB \
  | 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: 423a7b28022e115470ec3242cb4eafb86f47c19634e896109d9fab9f76157093

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbd3ae0cd97c6b31ae2db8d59fcf3e41d85eb804dc4a31329a14c6130069da49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-05-26T08:15:19Z",
    "title_canon_sha256": "edfb4e545047085a08fe569172802e72d862496845511a522817d0fe495cfdd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.5226",
    "kind": "arxiv",
    "version": 1
  }
}