Pith Number

pith:54N5UVJ5

pith:2010:54N5UVJ5PRMRHHFSOPSRXV2TAR

not attested not anchored not stored refs pending

On the construction of a geometric invariant measuring the deviation from Kerr data

Juan A. Valiente Kroon, Thomas B\"ackdahl

arxiv:1005.0743 v2 · 2010-05-05 · 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{54N5UVJ5PRMRHHFSOPSRXV2TAR}

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	2026-05-18T04:32:12.061270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef1bda553d7c59139cb273e51bd75304413bb1373404c68c3d66b9e7df587f6b

Aliases

arxiv: 1005.0743 · arxiv_version: 1005.0743v2 · doi: 10.48550/arxiv.1005.0743 · pith_short_12: 54N5UVJ5PRMR · pith_short_16: 54N5UVJ5PRMRHHFS · pith_short_8: 54N5UVJ5

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/54N5UVJ5PRMRHHFSOPSRXV2TAR \
  | 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: ef1bda553d7c59139cb273e51bd75304413bb1373404c68c3d66b9e7df587f6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d112ea552351ea21d91ef4222e8d225e7561e557f20ab675cdbdb41389c9363",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-05-05T12:57:47Z",
    "title_canon_sha256": "5847cddb03c083f51b8a57116b474f3d85b5d70ed8e0a78982979159218293c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.0743",
    "kind": "arxiv",
    "version": 2
  }
}