Pith Number

pith:LAQUBCCM

pith:1999:LAQUBCCMYAM773GO37WSOFGXHL

not attested not anchored not stored refs pending

The Problem of the Age of the Universe and the Earliest Galaxies

Inc), Roger Ellman (The-Origin Foundation

arxiv:physics/9906031 v9 · 1999-06-16 · physics.gen-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{LAQUBCCMYAM773GO37WSOFGXHL}

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	2026-05-18T03:40:14.947349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

582140884cc019ffeccedfed2714d73ac1e0a1a7ff2f13bc01754ba14e1c17ca

Aliases

arxiv: physics/9906031 · arxiv_version: physics/9906031v9 · doi: 10.48550/arxiv.physics/9906031 · pith_short_12: LAQUBCCMYAM7 · pith_short_16: LAQUBCCMYAM773GO · pith_short_8: LAQUBCCM

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/LAQUBCCMYAM773GO37WSOFGXHL \
  | 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: 582140884cc019ffeccedfed2714d73ac1e0a1a7ff2f13bc01754ba14e1c17ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee3a6ede42387df83ac3a5773d24c3793197c6111adf09eab847cc24cfb6fed4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "1999-06-16T15:32:04Z",
    "title_canon_sha256": "80859c127ca5d28a7cd7fcdd578c0f81815a9e2ff508ac033642ad5ee44d569a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/9906031",
    "kind": "arxiv",
    "version": 9
  }
}