Pith Number

pith:HZUMRN2Q

pith:2026:HZUMRN2QHATMHQUUGSD2YJKJSQ

not attested not anchored not stored refs pending

Page transition for the complexity of an evaporating black hole

Kyle Ritchie, Samuel Weiss, Violet Concepcion, Yasunori Nomura

arxiv:2607.21734 v1 · 2026-07-23 · hep-th · gr-qc · 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{HZUMRN2QHATMHQUUGSD2YJKJSQ}

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	2026-07-27T00:20:18.120343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e68c8b7503826c3c2943487ac254994193d1c737b4b555428dba2d890c6bbee

Aliases

arxiv: 2607.21734 · arxiv_version: 2607.21734v1 · doi: 10.48550/arxiv.2607.21734 · pith_short_12: HZUMRN2QHATM · pith_short_16: HZUMRN2QHATMHQUU · pith_short_8: HZUMRN2Q

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/HZUMRN2QHATMHQUUGSD2YJKJSQ \
  | 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: 3e68c8b7503826c3c2943487ac254994193d1c737b4b555428dba2d890c6bbee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2d6c0fa0f755b1ba3a1a0586bf700884a94a6b3b03967b25bc68d77ec27bb39",
    "cross_cats_sorted": [
      "gr-qc",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2026-07-23T18:34:12Z",
    "title_canon_sha256": "31711de9d3c1b83914a9288f53eecf2a4577bf6361ffe9ec014e6cd47ef9e569"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21734",
    "kind": "arxiv",
    "version": 1
  }
}