Pith Number

pith:3UY45ERK

pith:2009:3UY45ERKLTVZY3U2FMJWODFQ7F

not attested not anchored not stored refs pending

Relating chronology protection and unitarity through holography

Bert Vercnocke, Dieter Van den Bleeken, Joris Raeymaekers

arxiv:0911.3893 v1 · 2009-11-20 · hep-th · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3UY45ERKLTVZY3U2FMJWODFQ7F}

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	2026-05-18T02:34:04.451804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd31ce922a5ceb9c6e9a2b13670cb0f94b058fb87f4c730f7f65f50050875edc

Aliases

arxiv: 0911.3893 · arxiv_version: 0911.3893v1 · doi: 10.48550/arxiv.0911.3893 · pith_short_12: 3UY45ERKLTVZ · pith_short_16: 3UY45ERKLTVZY3U2 · pith_short_8: 3UY45ERK

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/3UY45ERKLTVZY3U2FMJWODFQ7F \
  | 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: dd31ce922a5ceb9c6e9a2b13670cb0f94b058fb87f4c730f7f65f50050875edc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c8d6651ad51f17e49b5a10a0feb4d37c0c59e0482612d49ecd847883688e3e0",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-11-20T16:38:01Z",
    "title_canon_sha256": "60e7843dfd9b98b74bc64444909612bad9a2cd76657182527fd386f9c08ecd19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.3893",
    "kind": "arxiv",
    "version": 1
  }
}