Pith Number

pith:TTWHMAGT

pith:2021:TTWHMAGTZKDBNZ2X7OY25FIBVD

not attested not anchored not stored refs pending

Photon Boomerang in a Nearly Extreme Kerr Metric

Don N. Page

arxiv:2106.13262 v1 · 2021-06-24 · gr-qc · 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{TTWHMAGTZKDBNZ2X7OY25FIBVD}

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.

Cited by

1 paper in Pith

Radii of spherical timelike geodesics in Kerr-Newman black holes

Receipt and verification

First computed	2026-07-05T04:43:33.269302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cec7600d3ca8616e757fbb1ae9501a8f27716f56a76ef430dc6fd82bc9c7333

Aliases

arxiv: 2106.13262 · arxiv_version: 2106.13262v1 · doi: 10.48550/arxiv.2106.13262 · pith_short_12: TTWHMAGTZKDB · pith_short_16: TTWHMAGTZKDBNZ2X · pith_short_8: TTWHMAGT

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/TTWHMAGTZKDBNZ2X7OY25FIBVD \
  | 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: 9cec7600d3ca8616e757fbb1ae9501a8f27716f56a76ef430dc6fd82bc9c7333

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a095953b47a0de65052f18fa2aea1be40c01c3fb48e560e36e3448fc787f766",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-06-24T18:09:04Z",
    "title_canon_sha256": "884d910d72f1e61879c7e2518dacc89babd200ab9dbe394f6f5b3b7cc8e21fb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.13262",
    "kind": "arxiv",
    "version": 1
  }
}