Pith Number

pith:P5EW6PLS

pith:2007:P5EW6PLSRNXAWWX7HHSH2WOPNN

not attested not anchored not stored refs pending

A sample of mJy radio sources at 1.4 GHz in the Lynx and Hercules fields - II. Cosmic evolution of the space density of FRI radio sources

E. E. Rigby, I. A. G. Snellen, P. N. Best

arxiv:0712.1541 v1 · 2007-12-10 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P5EW6PLSRNXAWWX7HHSH2WOPNN}

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	2026-07-04T17:07:11.090672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f496f3d728b6e0b5aff39e47d59cf6b6aa83870eaa379a5698a571e9cce3ec1

Aliases

arxiv: 0712.1541 · arxiv_version: 0712.1541v1 · doi: 10.48550/arxiv.0712.1541 · pith_short_12: P5EW6PLSRNXA · pith_short_16: P5EW6PLSRNXAWWX7 · pith_short_8: P5EW6PLS

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/P5EW6PLSRNXAWWX7HHSH2WOPNN \
  | 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: 7f496f3d728b6e0b5aff39e47d59cf6b6aa83870eaa379a5698a571e9cce3ec1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6df1a2545905f01b5d40ea8cf3ff2bd3c3603cbb271d7a98792c6e77e96865c2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-12-10T17:20:43Z",
    "title_canon_sha256": "36839668a0d7d64af223d8752cd22d3d96921750ec1df7cd7b3b07ad1332ec04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.1541",
    "kind": "arxiv",
    "version": 1
  }
}