Pith Number

pith:PL4SM5IZ

pith:1999:PL4SM5IZXEPJOPQXT4LW7OH4AM

not attested not anchored not stored refs pending

Negative Energy, Superluminosity and Holography

Joseph Polchinski, Leonard Susskind, Nicolaos Toumbas

arxiv:hep-th/9903228 v4 · 1999-03-26 · 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{PL4SM5IZXEPJOPQXT4LW7OH4AM}

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

1 paper in Pith

Semiclassical algebraic reconstruction for type III algebras

Receipt and verification

First computed	2026-07-04T15:53:54.425871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7af9267519b91e973e179f176fb8fc030918a84c0953a368dd309b7128d7a8a6

Aliases

arxiv: hep-th/9903228 · arxiv_version: hep-th/9903228v4 · doi: 10.48550/arxiv.hep-th/9903228 · pith_short_12: PL4SM5IZXEPJ · pith_short_16: PL4SM5IZXEPJOPQX · pith_short_8: PL4SM5IZ

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/PL4SM5IZXEPJOPQXT4LW7OH4AM \
  | 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: 7af9267519b91e973e179f176fb8fc030918a84c0953a368dd309b7128d7a8a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f0871f82a7f0f681031e9cb362146b8bdf1fbf376cd7e23040732d2cc7ee68b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1999-03-26T00:37:59Z",
    "title_canon_sha256": "9473828ed891070bf4527e1d6a506a148fccd423490545d33a2af766e03e2c0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9903228",
    "kind": "arxiv",
    "version": 4
  }
}