Pith Number

pith:2J7FWMN7

pith:2003:2J7FWMN72XMYOGJ47TEEG5K4HR

not attested not anchored not stored refs pending

SN 1993J VLBI (III): The Evolution of the Radio Shell

M. F. Bietenholz, M. P. Rupen, N. Bartel

arxiv:astro-ph/0307382 v1 · 2003-07-22 · 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{2J7FWMN72XMYOGJ47TEEG5K4HR}

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	2026-07-04T16:51:20.002706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d27e5b31bfd5d987193cfcc843755c3c5c074544de2b49ca5a0c91e7e5d90f77

Aliases

arxiv: astro-ph/0307382 · arxiv_version: astro-ph/0307382v1 · doi: 10.48550/arxiv.astro-ph/0307382 · pith_short_12: 2J7FWMN72XMY · pith_short_16: 2J7FWMN72XMYOGJ4 · pith_short_8: 2J7FWMN7

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/2J7FWMN72XMYOGJ47TEEG5K4HR \
  | 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: d27e5b31bfd5d987193cfcc843755c3c5c074544de2b49ca5a0c91e7e5d90f77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "639d215c34e8735970f53aa6a7b5bf6638f6b54a36c2c06d07473449bf20edb7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-07-22T12:45:22Z",
    "title_canon_sha256": "d255373dfa87a068867ef8d8d7b8451507020afcc78d51936710bd7eae581396"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0307382",
    "kind": "arxiv",
    "version": 1
  }
}