Pith Number

pith:C2M5M7XW

pith:2008:C2M5M7XWFT7SUQEWJSAYNNFZWZ

not attested not anchored not stored refs pending

Entropy Enhancement and Black Hole Microstates

Clement Ruef, Iosif Bena, Nicholas P. Warner, Nikolay Bobev

arxiv:0804.4487 v1 · 2008-04-28 · 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{C2M5M7XWFT7SUQEWJSAYNNFZWZ}

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	2026-05-18T04:32:34.876928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1699d67ef62cff2a40964c8186b4b9b655632f03fdc2a092c0fe7183bb673e80

Aliases

arxiv: 0804.4487 · arxiv_version: 0804.4487v1 · doi: 10.48550/arxiv.0804.4487 · pith_short_12: C2M5M7XWFT7S · pith_short_16: C2M5M7XWFT7SUQEW · pith_short_8: C2M5M7XW

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/C2M5M7XWFT7SUQEWJSAYNNFZWZ \
  | 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: 1699d67ef62cff2a40964c8186b4b9b655632f03fdc2a092c0fe7183bb673e80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6658be9778457b7c4dfa11af79ba23b1aa840a2764461ad1d7e766db9a99d09f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2008-04-28T20:57:52Z",
    "title_canon_sha256": "8a01e4f5e8b01e47dcef73665a3cfb8da060cbeac510ae188a66c41d02780698"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.4487",
    "kind": "arxiv",
    "version": 1
  }
}