Pith Number

pith:EFOZFADK

pith:2009:EFOZFADKICFLNATQWRDEHTKEIY

not attested not anchored not stored refs pending

The Dynamic Radio Sky: An Opportunity for Discovery

C. Law (Berkeley), G. C. Bower (Berkeley), J. Cordes (Cornell, J. Lazio (NRL), J. S. Bloom (Berkeley), M. McLaughlin (WVU), NAIC), S. Croft (Berkeley), S. Hyman (Sweet Briar)

arxiv:0904.0633 v1 · 2009-04-03 · astro-ph.IM · astro-ph.CO · astro-ph.EP · astro-ph.GA · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EFOZFADKICFLNATQWRDEHTKEIY}

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	2026-05-18T01:05:13.201304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

215d92806a408ab68270b44643cd444619b112d68acbc9c7a2530c7dd5879fee

Aliases

arxiv: 0904.0633 · arxiv_version: 0904.0633v1 · doi: 10.48550/arxiv.0904.0633 · pith_short_12: EFOZFADKICFL · pith_short_16: EFOZFADKICFLNATQ · pith_short_8: EFOZFADK

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/EFOZFADKICFLNATQWRDEHTKEIY \
  | 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: 215d92806a408ab68270b44643cd444619b112d68acbc9c7a2530c7dd5879fee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10b1cabc7b2de7548c8dc304ce2795cb10e918cda3dda157769a6ec9a7f1473d",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.EP",
      "astro-ph.GA",
      "astro-ph.HE",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-04-03T18:35:26Z",
    "title_canon_sha256": "03ab565741fd0d2da3773c591d9c2e79c4fa80fdb4500f7c180cbd296560fef6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0633",
    "kind": "arxiv",
    "version": 1
  }
}