Pith Number

pith:UG3XMPXL

pith:2018:UG3XMPXL32L3OHH6CGQDTPJXID

not attested not anchored not stored refs pending

Spacetime near Kerr isolated horizon

Carmen Li, Jerzy lewandowski

arxiv:1809.04715 v1 · 2018-09-13 · 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{UG3XMPXL32L3OHH6CGQDTPJXID}

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	2026-05-18T00:05:49.858236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1b7763eebde97b71cfe11a039bd3740c885bbf256e6d04c720bc1aeb0335971

Aliases

arxiv: 1809.04715 · arxiv_version: 1809.04715v1 · doi: 10.48550/arxiv.1809.04715 · pith_short_12: UG3XMPXL32L3 · pith_short_16: UG3XMPXL32L3OHH6 · pith_short_8: UG3XMPXL

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/UG3XMPXL32L3OHH6CGQDTPJXID \
  | 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: a1b7763eebde97b71cfe11a039bd3740c885bbf256e6d04c720bc1aeb0335971

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faedf2c2d4a20f247e1e890618120f7a870a492b1e4bfb3b3ec1e766c1330188",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-09-13T00:14:32Z",
    "title_canon_sha256": "48bff8d82df636dc9e907277ea574f3b4d1eb75eb5c22d68853db05c8c088c28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04715",
    "kind": "arxiv",
    "version": 1
  }
}