Pith Number

pith:J2B4NFLR

pith:2010:J2B4NFLRVDZPKAYWE4E65MZVSO

not attested not anchored not stored refs pending

Radio Astronomy and eVLBI using KAREN

Sergei Gulyaev, Stuart Weston, Tim Natusch

arxiv:1011.0227 v1 · 2010-11-01 · astro-ph.IM · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J2B4NFLRVDZPKAYWE4E65MZVSO}

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	2026-05-18T04:37:30.307149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e83c69571a8f2f503162709eeb335939ddd7f9db4800eda5b79f29785876e68

Aliases

arxiv: 1011.0227 · arxiv_version: 1011.0227v1 · doi: 10.48550/arxiv.1011.0227 · pith_short_12: J2B4NFLRVDZP · pith_short_16: J2B4NFLRVDZPKAYW · pith_short_8: J2B4NFLR

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/J2B4NFLRVDZPKAYWE4E65MZVSO \
  | 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: 4e83c69571a8f2f503162709eeb335939ddd7f9db4800eda5b79f29785876e68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89315c5d57c1cb16cbc210f67f3fad7e7772c7c14eef3474ee594b58fd4c655e",
    "cross_cats_sorted": [
      "cs.NI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-11-01T00:43:15Z",
    "title_canon_sha256": "2fd2bfdc02a7581c6a273a5d1799481e166e6d8dbe9e2d7a52a42ecaadccbad3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.0227",
    "kind": "arxiv",
    "version": 1
  }
}