Pith Number

pith:ZGFZCS7F

pith:2001:ZGFZCS7FKCBDUFOEAL5S7WVV3F

not attested not anchored not stored refs pending

The Wide Field Imaging Interferometry Testbed

Anthony J. Martino, Dave Leisawitz, Douglas B. Leviton, John C. Mather, Lee Feinberg, Xiaolei Zhang

arxiv:astro-ph/0109247 v1 · 2001-09-17 · 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{ZGFZCS7FKCBDUFOEAL5S7WVV3F}

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	2026-05-18T00:57:45.360729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c98b914be550823a15c402fb2fdab5d9431118b9d4721f2a405355a1a4938302

Aliases

arxiv: astro-ph/0109247 · arxiv_version: astro-ph/0109247v1 · doi: 10.48550/arxiv.astro-ph/0109247 · pith_short_12: ZGFZCS7FKCBD · pith_short_16: ZGFZCS7FKCBDUFOE · pith_short_8: ZGFZCS7F

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/ZGFZCS7FKCBDUFOEAL5S7WVV3F \
  | 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: c98b914be550823a15c402fb2fdab5d9431118b9d4721f2a405355a1a4938302

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "101ea5500b81cac9b421a831289222caccd37b28fab2212bb89447d3dfe23abe",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-09-17T02:58:32Z",
    "title_canon_sha256": "0ad47724650d77f04c391a28a5307826a54070e95cbd42ff28d12209a94d6d2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0109247",
    "kind": "arxiv",
    "version": 1
  }
}