Pith Number

pith:MV63IGFU

pith:2014:MV63IGFUJEMBLAPF2TQADD3HTW

not attested not anchored not stored refs pending

Entanglement entropy due to near horizon degrees of freedom

Suman Ghosh

arxiv:1405.6461 v2 · 2014-05-26 · 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{MV63IGFUJEMBLAPF2TQADD3HTW}

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	2026-05-18T01:35:12.275153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

657db418b449181581e5d4e0018f679d851120f7168fd39968d767ec45ccf446

Aliases

arxiv: 1405.6461 · arxiv_version: 1405.6461v2 · doi: 10.48550/arxiv.1405.6461 · pith_short_12: MV63IGFUJEMB · pith_short_16: MV63IGFUJEMBLAPF · pith_short_8: MV63IGFU

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/MV63IGFUJEMBLAPF2TQADD3HTW \
  | 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: 657db418b449181581e5d4e0018f679d851120f7168fd39968d767ec45ccf446

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6013e971f09c3e60908f0a2e5f317e8a2b990c2bf6f01505fe51a131d536e33",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-05-26T05:13:27Z",
    "title_canon_sha256": "254a1f8b7f16c53d35295a174eee5b025badfdb0c035abe8bace179540cfd9f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.6461",
    "kind": "arxiv",
    "version": 2
  }
}