Pith Number

pith:454ULPWV

pith:1997:454ULPWVW43PK26EYQGSH4ZGF7

not attested not anchored not stored refs pending

Space for Both No-Boundary and Tunneling Quantum States of the Universe

Canada), Don N. Page (Canadian Institute for Advanced Research, Edmonton, Theoretical Physics Institute, University of Alberta

arxiv:gr-qc/9704017 v2 · 1997-04-07 · gr-qc · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{454ULPWVW43PK26EYQGSH4ZGF7}

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	2026-05-18T02:37:29.463889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e77945bed5b736f56bc4c40d23f3262fe0651f08364ce90d89dbf4ab8d42eca9

Aliases

arxiv: gr-qc/9704017 · arxiv_version: gr-qc/9704017v2 · doi: 10.48550/arxiv.gr-qc/9704017 · pith_short_12: 454ULPWVW43P · pith_short_16: 454ULPWVW43PK26E · pith_short_8: 454ULPWV

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/454ULPWVW43PK26EYQGSH4ZGF7 \
  | 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: e77945bed5b736f56bc4c40d23f3262fe0651f08364ce90d89dbf4ab8d42eca9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4c3af93c41a3a3501ecb1ee3f6c27304c8732a59c8f0afad91b41d08b253447",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1997-04-07T20:54:11Z",
    "title_canon_sha256": "89d3f348524fa244139bd64e06a38568e07b30dbf9fadf250ac8af29a6a040ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9704017",
    "kind": "arxiv",
    "version": 2
  }
}