Pith Number

pith:L6BUZ4ZE

pith:2013:L6BUZ4ZE2QEEW4MYXY46ZJHMA6

not attested not anchored not stored refs pending

Unitarity of black hole evaporation in final-state projection models

John Preskill, Seth Lloyd

arxiv:1308.4209 v3 · 2013-08-20 · hep-th · quant-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{L6BUZ4ZE2QEEW4MYXY46ZJHMA6}

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	2026-05-18T02:44:40.439201Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f834cf324d4084b7198be39eca4ec079aefd66bb9b84e2425d6857be153b3b3

Aliases

arxiv: 1308.4209 · arxiv_version: 1308.4209v3 · doi: 10.48550/arxiv.1308.4209 · pith_short_12: L6BUZ4ZE2QEE · pith_short_16: L6BUZ4ZE2QEEW4MY · pith_short_8: L6BUZ4ZE

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/L6BUZ4ZE2QEEW4MYXY46ZJHMA6 \
  | 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: 5f834cf324d4084b7198be39eca4ec079aefd66bb9b84e2425d6857be153b3b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "823a0440d32bece50b66742fb2f161fe89334526dcae2997aeb5cf6bfc7b9ae6",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2013-08-20T02:19:58Z",
    "title_canon_sha256": "138c9dac60cd42b9497eae7b5855c8a112f2fcd824ab0fa8b14e74e83c59a8c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4209",
    "kind": "arxiv",
    "version": 3
  }
}