Pith Number

pith:DDDUUFDN

pith:2003:DDDUUFDN2RESQZ2FV2JYJT6FNH

not attested not anchored not stored refs pending

Messengers of the Extreme Universe

A. V. Olinto

arxiv:astro-ph/0305177 v1 · 2003-05-11 · 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{DDDUUFDN2RESQZ2FV2JYJT6FNH}

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	2026-05-18T00:37:00.755375Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18c74a146dd449286745ae9384cfc569d7a718a6eefc854a0fcfbea0a70f70d1

Aliases

arxiv: astro-ph/0305177 · arxiv_version: astro-ph/0305177v1 · doi: 10.48550/arxiv.astro-ph/0305177 · pith_short_12: DDDUUFDN2RES · pith_short_16: DDDUUFDN2RESQZ2F · pith_short_8: DDDUUFDN

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/DDDUUFDN2RESQZ2FV2JYJT6FNH \
  | 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: 18c74a146dd449286745ae9384cfc569d7a718a6eefc854a0fcfbea0a70f70d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99a5b49ad408ba79bd2339eb37cfb7b4c1aa782e0a7c79312d6b0acdafb766be",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-05-11T17:54:03Z",
    "title_canon_sha256": "9918779fbc46a6552d33d071e8439c94fcc0ac2a0b2355fd5df08b548cf74be3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0305177",
    "kind": "arxiv",
    "version": 1
  }
}