Pith Number

pith:HTCFFDIW

pith:2012:HTCFFDIWGMK27GNHBXS6L3Z7VF

not attested not anchored not stored refs pending

Deep Observation of the Giant Radio Lobes of Centaurus A with the Fermi Large Area Telescope

Emma de Ona Wilhelmi, Felix Aharonian, Frank Rieger, Narek Sahakyan, Rui-zhi Yang

arxiv:1201.1217 v2 · 2012-01-05 · 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{HTCFFDIWGMK27GNHBXS6L3Z7VF}

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	2026-05-18T02:21:25.850742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cc4528d163315af99a70de5e5ef3fa9657bd4d9a546ebb4bd1cdaf6e80ac04f

Aliases

arxiv: 1201.1217 · arxiv_version: 1201.1217v2 · doi: 10.48550/arxiv.1201.1217 · pith_short_12: HTCFFDIWGMK2 · pith_short_16: HTCFFDIWGMK27GNH · pith_short_8: HTCFFDIW

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/HTCFFDIWGMK27GNHBXS6L3Z7VF \
  | 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: 3cc4528d163315af99a70de5e5ef3fa9657bd4d9a546ebb4bd1cdaf6e80ac04f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2eeefed69b9c0d3045cc9c6f483428bb64f1f99ba6eadd48579a36d96c875efc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-01-05T17:02:13Z",
    "title_canon_sha256": "bb6a052b5fda0c1c2f83139c0d2ff1e11fcd1740f02b38b1278dedac36c1f88a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1217",
    "kind": "arxiv",
    "version": 2
  }
}