Pith Number

pith:4HQIR5SC

pith:2013:4HQIR5SCVEKBURMJYTFBPWRHVA

not attested not anchored not stored refs pending

IIB horizons

G. Papadopoulos, J. Gutowski, U. Gran

arxiv:1304.6539 v1 · 2013-04-24 · hep-th · 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{4HQIR5SCVEKBURMJYTFBPWRHVA}

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	2026-05-18T01:50:22.620961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1e088f642a9141a4589c4ca17da27a80683b0bf3f0949ea71bab9bcb8c97d91

Aliases

arxiv: 1304.6539 · arxiv_version: 1304.6539v1 · doi: 10.48550/arxiv.1304.6539 · pith_short_12: 4HQIR5SCVEKB · pith_short_16: 4HQIR5SCVEKBURMJ · pith_short_8: 4HQIR5SC

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/4HQIR5SCVEKBURMJYTFBPWRHVA \
  | 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: e1e088f642a9141a4589c4ca17da27a80683b0bf3f0949ea71bab9bcb8c97d91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83f737339ae3da98edebad2297c9f56ecc06880941de447b088790460c055a7d",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2013-04-24T10:24:57Z",
    "title_canon_sha256": "bfbf8da908424dfb3a50c13eb3ebc7321a3874f57e89fe56f6ea1c4cac6e580d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6539",
    "kind": "arxiv",
    "version": 1
  }
}