Pith Number

pith:4HBVN4CM

pith:2009:4HBVN4CMM2L22UBWF4AQY55U3Y

not attested not anchored not stored refs pending

Cosmic Evolution of Radio Sources in ATLAS

Jim E. J. Lovell, Minnie Y. Mao, Ray P. Norris, Rob Sharp

arxiv:0909.4114 v1 · 2009-09-23 · 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{4HBVN4CMM2L22UBWF4AQY55U3Y}

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	2026-05-18T02:34:28.098380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1c356f04c6697ad50362f010c77b4de3b546071120ae8c83b5616f5a5497625

Aliases

arxiv: 0909.4114 · arxiv_version: 0909.4114v1 · doi: 10.48550/arxiv.0909.4114 · pith_short_12: 4HBVN4CMM2L2 · pith_short_16: 4HBVN4CMM2L22UBW · pith_short_8: 4HBVN4CM

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/4HBVN4CMM2L22UBWF4AQY55U3Y \
  | 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: e1c356f04c6697ad50362f010c77b4de3b546071120ae8c83b5616f5a5497625

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf8c955a4891bbd490a08092851b6db75a569e1e6f556eed41fb129bc8540c03",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-23T01:24:36Z",
    "title_canon_sha256": "62c9b022a206d01f95acc8a263319703273adca7265994ca8b849e1c68feefb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4114",
    "kind": "arxiv",
    "version": 1
  }
}