Pith Number

pith:Y7MVETI6

pith:1999:Y7MVETI6HWOW6244ISRH3NPACW

not attested not anchored not stored refs pending

Galaxies Detected by the Dwingeloo Obscured Galaxies Survey

A. J. Rivers, P. A. Henning, R. C. Kraan-Korteweg

arxiv:astro-ph/9903443 v1 · 1999-03-30 · 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{Y7MVETI6HWOW6244ISRH3NPACW}

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	2026-05-18T01:40:13.295361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7d9524d1e3d9d6f6b9c44a27db5e015a57dd8711b1bfd14e9211dc173ed7180

Aliases

arxiv: astro-ph/9903443 · arxiv_version: astro-ph/9903443v1 · doi: 10.48550/arxiv.astro-ph/9903443 · pith_short_12: Y7MVETI6HWOW · pith_short_16: Y7MVETI6HWOW6244 · pith_short_8: Y7MVETI6

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/Y7MVETI6HWOW6244ISRH3NPACW \
  | 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: c7d9524d1e3d9d6f6b9c44a27db5e015a57dd8711b1bfd14e9211dc173ed7180

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e3ecd99ae39b861ec0c030de5c227ceb6234fb0461cd520de849a2764087415",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-03-30T01:27:12Z",
    "title_canon_sha256": "02a1c734ebf1dc5a4ef8a189aa690eab295710a4ba70a1af62ce49c0f273796a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9903443",
    "kind": "arxiv",
    "version": 1
  }
}