Pith Number

pith:45HQQ5VT

pith:2011:45HQQ5VTHYKCQROFKHTPBF3W3I

not attested not anchored not stored refs pending

Separating the BL Lac and Cluster X-ray Emissions in Abell 689 with Chandra

B. J. Maughan, D. M. Worrall, K. Lancaster, M. Birkinshaw, P. A. Giles

arxiv:1112.1409 v1 · 2011-12-06 · 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{45HQQ5VTHYKCQROFKHTPBF3W3I}

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	2026-05-18T01:59:16.170591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e74f0876b33e142845c551e6f09776da1a1bc7ec305b2bd6bbb844deed7e8256

Aliases

arxiv: 1112.1409 · arxiv_version: 1112.1409v1 · doi: 10.48550/arxiv.1112.1409 · pith_short_12: 45HQQ5VTHYKC · pith_short_16: 45HQQ5VTHYKCQROF · pith_short_8: 45HQQ5VT

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/45HQQ5VTHYKCQROFKHTPBF3W3I \
  | 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: e74f0876b33e142845c551e6f09776da1a1bc7ec305b2bd6bbb844deed7e8256

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d77bd3d7189ed6110874b4a807a72e8704e348bce1b48b3d64b8b68a216d561c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-12-06T21:00:04Z",
    "title_canon_sha256": "c6f7589804c5300da6aa5517da424fd32cb188b982a585255189b7bd14fe2a46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.1409",
    "kind": "arxiv",
    "version": 1
  }
}