Pith Number

pith:UKLY57ZT

pith:2013:UKLY57ZTEGFYIJHTVMOD6PMM7Q

not attested not anchored not stored refs pending

Black Hole Firewalls Require Huge Energy of Measurement

Jiro Matsumoto, Ken Funo, Masahiro Hotta

arxiv:1306.5057 v4 · 2013-06-21 · quant-ph · 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{UKLY57ZTEGFYIJHTVMOD6PMM7Q}

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	2026-05-18T01:49:14.106209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2978eff33218b8424f3ab1c3f3d8cfc29593306b416089cb2141d3402e1ab32

Aliases

arxiv: 1306.5057 · arxiv_version: 1306.5057v4 · doi: 10.48550/arxiv.1306.5057 · pith_short_12: UKLY57ZTEGFY · pith_short_16: UKLY57ZTEGFYIJHT · pith_short_8: UKLY57ZT

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/UKLY57ZTEGFYIJHTVMOD6PMM7Q \
  | 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: a2978eff33218b8424f3ab1c3f3d8cfc29593306b416089cb2141d3402e1ab32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a12b2c923b7bef06b20becec50af17c333fd01ed8bc5d6a9b385f4863bc27014",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-06-21T06:26:54Z",
    "title_canon_sha256": "1d6051960cc11f03c5d7b11e888c8850e9f2f56c09218b9d4a20386fe59d3fe1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.5057",
    "kind": "arxiv",
    "version": 4
  }
}