Pith Number

pith:WRIGJ6KL

pith:1998:WRIGJ6KLVQCWQTESACF4GYGCWQ

not attested not anchored not stored refs pending

The Recognition of Unusual Objects in the Sloan Digital Sky Survey Color System

Bruce Margon, Kevin Krisciunas, Paula Szkody

arxiv:astro-ph/9808093 v1 · 1998-08-10 · 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{WRIGJ6KLVQCWQTESACF4GYGCWQ}

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	2026-05-18T01:40:13.791072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b45064f94bac05684c92008bc360c2b416f131bb77a461cf40ed850d68bbcf88

Aliases

arxiv: astro-ph/9808093 · arxiv_version: astro-ph/9808093v1 · doi: 10.48550/arxiv.astro-ph/9808093 · pith_short_12: WRIGJ6KLVQCW · pith_short_16: WRIGJ6KLVQCWQTES · pith_short_8: WRIGJ6KL

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/WRIGJ6KLVQCWQTESACF4GYGCWQ \
  | 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: b45064f94bac05684c92008bc360c2b416f131bb77a461cf40ed850d68bbcf88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc745cf2175db36fb9b2a83c608c5e4cd5516a895ccc351f83bd2402a99ef77b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-08-10T20:47:21Z",
    "title_canon_sha256": "0d95629d0fdc4749f169b141d8da67a5c33a62f6317223136d0c4443dfbffdb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9808093",
    "kind": "arxiv",
    "version": 1
  }
}