Pith Number

pith:LDWQAKJN

pith:2010:LDWQAKJNZUYHUMCPPH2SSCC7KB

not attested not anchored not stored refs pending

Early Pulsar Observations with LOFAR

Anastasia Alexov, Aris Karastergiou, Aris Noutsos, Ben Stappers, Jan David Mol, Jason Hessels, Joeri van Leeuwen, Michael Kramer, Patrick Weltevrede, the LOFAR Collaboration, Thijs Coenen, Tom Hassall, Vlad Kondratiev

arxiv:1009.1758 v1 · 2010-09-09 · astro-ph.IM · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LDWQAKJNZUYHUMCPPH2SSCC7KB}

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	2026-05-18T04:41:06.335664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58ed00292dcd307a304f79f529085f50591e8e6eb3cfcfeca93060ef44aa9899

Aliases

arxiv: 1009.1758 · arxiv_version: 1009.1758v1 · doi: 10.48550/arxiv.1009.1758 · pith_short_12: LDWQAKJNZUYH · pith_short_16: LDWQAKJNZUYHUMCP · pith_short_8: LDWQAKJN

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/LDWQAKJNZUYHUMCPPH2SSCC7KB \
  | 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: 58ed00292dcd307a304f79f529085f50591e8e6eb3cfcfeca93060ef44aa9899

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fc4c5e2d377043c83f551c7f245174162143bb0e34befb0acaf45e2109ad4ba",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-09-09T12:46:07Z",
    "title_canon_sha256": "d9c483c9350283e64e8e194089151a5e7fbbe16db4e92c6775663feb22bf45a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.1758",
    "kind": "arxiv",
    "version": 1
  }
}