Pith Number

pith:PNTD5ZAX

pith:2018:PNTD5ZAXPJWD2O2IFCBC3T5NSC

not attested not anchored not stored refs pending

Maxwell's Demon and the Problem of Observers in General Relativity

L. Herrera

arxiv:1806.02186 v1 · 2018-06-06 · gr-qc · physics.class-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{PNTD5ZAXPJWD2O2IFCBC3T5NSC}

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	2026-05-18T00:11:33.461638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b663ee4177a6c3d3b4828822dcfad90bbb348d22c7bb844fe0a2ff63cc51d66

Aliases

arxiv: 1806.02186 · arxiv_version: 1806.02186v1 · doi: 10.48550/arxiv.1806.02186 · pith_short_12: PNTD5ZAXPJWD · pith_short_16: PNTD5ZAXPJWD2O2I · pith_short_8: PNTD5ZAX

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/PNTD5ZAXPJWD2O2IFCBC3T5NSC \
  | 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: 7b663ee4177a6c3d3b4828822dcfad90bbb348d22c7bb844fe0a2ff63cc51d66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d5cac001f3fcd87c8efdb781242aaeb745e274d3ae19f85cdddce8930848d9f",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-06-06T13:53:51Z",
    "title_canon_sha256": "ceab30a00563cba51711de8825dc28aa33f046c059443255781a60c49c0feb97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.02186",
    "kind": "arxiv",
    "version": 1
  }
}