Pith Number

pith:UMKNR2GH

pith:2026:UMKNR2GHCQPPENN2RONNHNEUYW

not attested not anchored not stored refs pending

Dynamical Casimir Effect and Vacuum Friction in the Near-Horizon Geometry of a Black Hole

Amin Rezaei Akbarieh, Goksel Daylan Esmer, Hamed Hadi

An external quantum Maxwell demon near a black hole extracts less work from its engine due to information loss at the horizon while still obeying local thermodynamics.

arxiv:2605.09783 v2 · 2026-05-10 · 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{UMKNR2GHCQPPENN2RONNHNEUYW}

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.

Claims

C1strongest claim

an external demon experiences degraded measurement correlations and reduced work extraction due to horizon-induced information loss, yet still obeys local thermodynamics and Landauer's principle. For an internal demon, the protocol reduces locally to the flat spacetime case, preserving the equivalence principle at the level of dynamics. While the equivalence principle holds dynamically, quantum information processing provides an operational signature of the horizon through reduced accessibility and irreversible open system behavior

C2weakest assumption

The particle's Hilbert space splits cleanly into accessible and inaccessible sectors when the chamber crosses the horizon, with the demon remaining a coherent two-level system and no significant backreaction on the spacetime geometry.

C3one line summary

A quantum Maxwell demon near a black hole horizon loses some work extraction ability for external observers due to information inaccessibility but obeys local thermodynamics and preserves the equivalence principle for internal observers.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-06-30T00:15:09.921959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a314d8e8c7141ef235ba8b9ad3b494c5bbc4f9a3a118a4d53b6e88d781809e23

Aliases

arxiv: 2605.09783 · arxiv_version: 2605.09783v2 · doi: 10.48550/arxiv.2605.09783 · pith_short_12: UMKNR2GHCQPP · pith_short_16: UMKNR2GHCQPPENN2 · pith_short_8: UMKNR2GH

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/UMKNR2GHCQPPENN2RONNHNEUYW \
  | 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: a314d8e8c7141ef235ba8b9ad3b494c5bbc4f9a3a118a4d53b6e88d781809e23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8f160640e4060bdff68746f46d8ab32eb1c24b64d9d163dcd6b83a31af92bf9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-05-10T22:01:58Z",
    "title_canon_sha256": "41820db840b742cfa0580a688d28e8eff206df56a841ee309ba97ac5e75b6bc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.09783",
    "kind": "arxiv",
    "version": 2
  }
}