Pith Number

pith:YFSMIMWF

pith:2021:YFSMIMWFAEYK4YMHKO2VHWVWKF

not attested not anchored not stored refs pending

On the Kerr metric in a synchronous reference frame

V.M. Khatsymovsky

arxiv:2101.07147 v1 · 2021-01-18 · 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{YFSMIMWFAEYK4YMHKO2VHWVWKF}

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	2026-07-05T03:08:43.691214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c164c432c50130ae618753b553dab651793bb9d347643e0d7946507cc60fae65

Aliases

arxiv: 2101.07147 · arxiv_version: 2101.07147v1 · doi: 10.48550/arxiv.2101.07147 · pith_short_12: YFSMIMWFAEYK · pith_short_16: YFSMIMWFAEYK4YMH · pith_short_8: YFSMIMWF

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/YFSMIMWFAEYK4YMHKO2VHWVWKF \
  | 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: c164c432c50130ae618753b553dab651793bb9d347643e0d7946507cc60fae65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce18de9835c44a6dae1130638824678089f3abf8fb42c07c905eefab2022f05f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-01-18T16:28:23Z",
    "title_canon_sha256": "e9f72baa25db237efe7e01f39b0d759a021c761dab1f57eb2cb1af648def4a63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.07147",
    "kind": "arxiv",
    "version": 1
  }
}