Pith Number

pith:UCRAHY3M

pith:2003:UCRAHY3METNCGC7Y77D3XOFVSO

not attested not anchored not stored refs pending

Surface Brightness Fluctuations: A Case for Extremely Large Telescopes

D. Butler, D. Gouliermis, S. Hippler, W. Brandner

arxiv:astro-ph/0311602 v1 · 2003-11-27 · 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{UCRAHY3METNCGC7Y77D3XOFVSO}

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	2026-05-18T03:50:34.476516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0a203e36c24da230bf8ffc7bbb8b593b6165ed227d2c979abb0afae80f81962

Aliases

arxiv: astro-ph/0311602 · arxiv_version: astro-ph/0311602v1 · doi: 10.48550/arxiv.astro-ph/0311602 · pith_short_12: UCRAHY3METNC · pith_short_16: UCRAHY3METNCGC7Y · pith_short_8: UCRAHY3M

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/UCRAHY3METNCGC7Y77D3XOFVSO \
  | 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: a0a203e36c24da230bf8ffc7bbb8b593b6165ed227d2c979abb0afae80f81962

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99b1f5d6f289e56f8eeeb686dc2c4e3f14186a9e7064970b1b8f2d6f78934012",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-11-27T11:45:26Z",
    "title_canon_sha256": "be9a9a5c11658e2dac221f5760aa531635667f2cd82897ff861d6d52d2332878"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0311602",
    "kind": "arxiv",
    "version": 1
  }
}