Pith Number

pith:YN3NNYGC

pith:1998:YN3NNYGCQPCFFAJGNQ25YBYCZI

not attested not anchored not stored refs pending

Multiple concentric annuli for characterizing spatially nonuniform backgrounds

James Theiler, Jeff Bloch

arxiv:astro-ph/9808225 v2 · 1998-08-20 · 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{YN3NNYGCQPCFFAJGNQ25YBYCZI}

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	2026-07-04T16:06:56.848181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c376d6e0c283c45281266c35dc0702ca265e945884e4fbdbc0b0bd9a6b042ff1

Aliases

arxiv: astro-ph/9808225 · arxiv_version: astro-ph/9808225v2 · doi: 10.48550/arxiv.astro-ph/9808225 · pith_short_12: YN3NNYGCQPCF · pith_short_16: YN3NNYGCQPCFFAJG · pith_short_8: YN3NNYGC

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/YN3NNYGCQPCFFAJGNQ25YBYCZI \
  | 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: c376d6e0c283c45281266c35dc0702ca265e945884e4fbdbc0b0bd9a6b042ff1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c9e706c058cdeb8d031c1b53b852825ca12988984b58c830e61dc72e8bf586f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-08-20T22:50:53Z",
    "title_canon_sha256": "2770547ba552b116c21d217e44fe16c3d5d5daaddcc91c041bc3ff2e64f8d0bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9808225",
    "kind": "arxiv",
    "version": 2
  }
}