Pith Number

pith:YACSRKDR

pith:2003:YACSRKDRQC2D7BCMF7ZUJRK233

not attested not anchored not stored refs pending

Motivation and possibilities of affordable low-frequency radio interferometry in space

A. Olsson, J.-M. Griessmeier, P. Janhunen, R. Karlsson

arxiv:astro-ph/0305458 v1 · 2003-05-23 · 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{YACSRKDRQC2D7BCMF7ZUJRK233}

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	2026-07-04T14:12:44.549640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c00528a87180b43f844c2ff344c55adede1708eaef38cd16fbee4e7770e84ef1

Aliases

arxiv: astro-ph/0305458 · arxiv_version: astro-ph/0305458v1 · doi: 10.48550/arxiv.astro-ph/0305458 · pith_short_12: YACSRKDRQC2D · pith_short_16: YACSRKDRQC2D7BCM · pith_short_8: YACSRKDR

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/YACSRKDRQC2D7BCMF7ZUJRK233 \
  | 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: c00528a87180b43f844c2ff344c55adede1708eaef38cd16fbee4e7770e84ef1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2abfc7bc0ba2ee83a6eeb1b17e255ce00a583b807cf54b549beacfae782e9c6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-05-23T11:54:08Z",
    "title_canon_sha256": "51bbe0d06f7a56205c9b12354d4f44d2dd8a6afb36d91daee40f2af484079e97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0305458",
    "kind": "arxiv",
    "version": 1
  }
}