Pith Number

pith:VPPAPPV3

pith:2000:VPPAPPV33PDX5JWVT7S3C6NG7U

not attested not anchored not stored refs pending

Proper Motion Measurements with the VLA: I. Wide-field Imaging and Pulse Gating Techniques

A. S. Fruchter, R. S. McGary, S. E. Thorsett, W. F. Brisken, W. M. Goss

arxiv:astro-ph/0010374 v1 · 2000-10-18 · 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{VPPAPPV33PDX5JWVT7S3C6NG7U}

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	2026-07-04T16:17:25.396601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abde07bebbdbc77ea6d59fe5b179a6fd2f9293e5eda5dadc1137186c275a9509

Aliases

arxiv: astro-ph/0010374 · arxiv_version: astro-ph/0010374v1 · doi: 10.48550/arxiv.astro-ph/0010374 · pith_short_12: VPPAPPV33PDX · pith_short_16: VPPAPPV33PDX5JWV · pith_short_8: VPPAPPV3

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/VPPAPPV33PDX5JWVT7S3C6NG7U \
  | 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: abde07bebbdbc77ea6d59fe5b179a6fd2f9293e5eda5dadc1137186c275a9509

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0478d291182b5daa4779aedd3ee514da7f4a906a1e984ecdf3c3474e9c02c28",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-10-18T21:48:27Z",
    "title_canon_sha256": "070d79a8d6b45462b110ac331f3cc6b0063f692be681d58923909b96f7bda348"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0010374",
    "kind": "arxiv",
    "version": 1
  }
}