Pith Number

pith:UJFH5A7T

pith:2016:UJFH5A7TM56M5FP673M7HQBW2J

not attested not anchored not stored refs pending

Spectral rigidity of group actions on homogeneous spaces

Bachir Bekka (IRMAR)

arxiv:1602.02892 v2 · 2016-02-09 · math.GR · math.DS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UJFH5A7TM56M5FP673M7HQBW2J}

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	2026-05-18T01:15:06.324335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a24a7e83f3677cce95fefed9f3c036d262e03f4938603f83590ee775bf291429

Aliases

arxiv: 1602.02892 · arxiv_version: 1602.02892v2 · doi: 10.48550/arxiv.1602.02892 · pith_short_12: UJFH5A7TM56M · pith_short_16: UJFH5A7TM56M5FP6 · pith_short_8: UJFH5A7T

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/UJFH5A7TM56M5FP673M7HQBW2J \
  | 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: a24a7e83f3677cce95fefed9f3c036d262e03f4938603f83590ee775bf291429

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b532984d94583588b566bd19ac601da1f20e1fca0053eab9096b6dbe6c7931fd",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2016-02-09T08:25:49Z",
    "title_canon_sha256": "7cba5c2cc18cacef72ff94d005c24e93148a7304aa88af526787c91f96b6508b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.02892",
    "kind": "arxiv",
    "version": 2
  }
}