Pith Number

pith:FNBRY5KJ

pith:2013:FNBRY5KJYSBSTNG2ZMB3AD5RGE

not attested not anchored not stored refs pending

Black Hole Information as Topological Qubits

Erik Verlinde, Herman Verlinde

arxiv:1306.0516 v2 · 2013-06-03 · 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{FNBRY5KJYSBSTNG2ZMB3AD5RGE}

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	2026-05-18T03:21:53.447170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b431c7549c48329b4dacb03b00fb1313cff3edfaf9d902419f7818beb6d6560

Aliases

arxiv: 1306.0516 · arxiv_version: 1306.0516v2 · doi: 10.48550/arxiv.1306.0516 · pith_short_12: FNBRY5KJYSBS · pith_short_16: FNBRY5KJYSBSTNG2 · pith_short_8: FNBRY5KJ

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/FNBRY5KJYSBSTNG2ZMB3AD5RGE \
  | 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: 2b431c7549c48329b4dacb03b00fb1313cff3edfaf9d902419f7818beb6d6560

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec02e01d0a91016ed8957fd2667b908394132881c15e824039513d7748cc32e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2013-06-03T17:38:29Z",
    "title_canon_sha256": "3364107ede1dfd9340801eb57bf97eef1861efd4d85c9dc4e25a4b4a75db2f9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.0516",
    "kind": "arxiv",
    "version": 2
  }
}