Pith Number

pith:6O3Y2JPW

pith:1998:6O3Y2JPW4MD2YSVKTLJR2W5MYT

not attested not anchored not stored refs pending

Pre-DEIMOS Pilot Surveys for DEEP

David C. Koo (UCO/Lick Observatory, UCSC)

arxiv:astro-ph/9809217 v1 · 1998-09-16 · 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{6O3Y2JPW4MD2YSVKTLJR2W5MYT}

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	2026-07-04T14:16:02.209746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3b78d25f6e307ac4aaa9ad31d5bacc4f59f00335c598c2f5b0947bfb0f54bf6

Aliases

arxiv: astro-ph/9809217 · arxiv_version: astro-ph/9809217v1 · doi: 10.48550/arxiv.astro-ph/9809217 · pith_short_12: 6O3Y2JPW4MD2 · pith_short_16: 6O3Y2JPW4MD2YSVK · pith_short_8: 6O3Y2JPW

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/6O3Y2JPW4MD2YSVKTLJR2W5MYT \
  | 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: f3b78d25f6e307ac4aaa9ad31d5bacc4f59f00335c598c2f5b0947bfb0f54bf6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5fc7117c04fa6df457dacbfab57ab4504c4471adeac3e6a606c915532b4f3c8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-09-16T18:53:12Z",
    "title_canon_sha256": "61eca02ffc2a170cf9d3f6b64d52b3421496a3093d7d68e3e84a8b524324dcb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9809217",
    "kind": "arxiv",
    "version": 1
  }
}