Pith Number

pith:D2B5WLM2

pith:1998:D2B5WLM2YHEW24PAFPIVAB6B2F

not attested not anchored not stored refs pending

Distances from Surface Brightness Fluctuations

Edward A. Ajhar, John L. Tonry, John P. Blakeslee

arxiv:astro-ph/9807124 v1 · 1998-07-13 · 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{D2B5WLM2YHEW24PAFPIVAB6B2F}

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	2026-05-18T01:21:56.453951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e83db2d9ac1c96d71e02bd15007c1d1439a60acc3be26593821c1d913450015

Aliases

arxiv: astro-ph/9807124 · arxiv_version: astro-ph/9807124v1 · doi: 10.48550/arxiv.astro-ph/9807124 · pith_short_12: D2B5WLM2YHEW · pith_short_16: D2B5WLM2YHEW24PA · pith_short_8: D2B5WLM2

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/D2B5WLM2YHEW24PAFPIVAB6B2F \
  | 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: 1e83db2d9ac1c96d71e02bd15007c1d1439a60acc3be26593821c1d913450015

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4e7e6f82338e975bd2e6b660072f299c9b446d40a4ed1f215ddaaa1d6f67889",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-07-13T17:33:55Z",
    "title_canon_sha256": "cdc697dddd83ea7121f66e1d69bff65e2c98d69ae8d2499adee3dc4377f14d99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9807124",
    "kind": "arxiv",
    "version": 1
  }
}