Pith Number

pith:V36GM6OV

pith:2002:V36GM6OVGW3G5C7C4GU52YPEM3

not attested not anchored not stored refs pending

The quantum physics of chronology protection

Matt Visser (Washington University in Saint Louis)

arxiv:gr-qc/0204022 v2 · 2002-04-05 · 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{V36GM6OVGW3G5C7C4GU52YPEM3}

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.

Cited by

2 papers in Pith

Exact, non-singular black holes from a phantom DBI Field as primordial dark matter

Metric affine gravity with dynamical chronology protection

Receipt and verification

First computed	2026-05-18T01:06:47.714031Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aefc6679d535b66e8be2e1a9dd61e466ef806c7dc80aef458d0859b417e8e1bd

Aliases

arxiv: gr-qc/0204022 · arxiv_version: gr-qc/0204022v2 · doi: 10.48550/arxiv.gr-qc/0204022 · pith_short_12: V36GM6OVGW3G · pith_short_16: V36GM6OVGW3G5C7C · pith_short_8: V36GM6OV

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/V36GM6OVGW3G5C7C4GU52YPEM3 \
  | 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: aefc6679d535b66e8be2e1a9dd61e466ef806c7dc80aef458d0859b417e8e1bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec8b553f881ee89aca03fecb32bf810af008430e0e20ffa46bd401eeb6082ffb",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-04-05T02:20:47Z",
    "title_canon_sha256": "8d28b066419a9a979707cf6f3b6f6ec244b0075e12e405ecb1f020e4b2cd84cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0204022",
    "kind": "arxiv",
    "version": 2
  }
}