Pith Number

pith:NMAB2TVH

pith:2017:NMAB2TVHUSTKWC4FOGNNIJMAGV

not attested not anchored not stored refs pending

Superrigidity of actions on finite rank median spaces

Elia Fioravanti

arxiv:1711.07737 v2 · 2017-11-21 · math.GT · math.GR · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NMAB2TVHUSTKWC4FOGNNIJMAGV}

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	2026-05-17T23:41:58.367903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b001d4ea7a4a6ab0b85719ad42580357233bc6deef1c6f25ce616c6ebd7a6ec

Aliases

arxiv: 1711.07737 · arxiv_version: 1711.07737v2 · doi: 10.48550/arxiv.1711.07737 · pith_short_12: NMAB2TVHUSTK · pith_short_16: NMAB2TVHUSTKWC4F · pith_short_8: NMAB2TVH

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/NMAB2TVHUSTKWC4FOGNNIJMAGV \
  | 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: 6b001d4ea7a4a6ab0b85719ad42580357233bc6deef1c6f25ce616c6ebd7a6ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d416e302cb5dd1a648b54a078d37d0694740510c9729c7c281fce50d6264ccd5",
    "cross_cats_sorted": [
      "math.GR",
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2017-11-21T12:09:32Z",
    "title_canon_sha256": "7d9494d2e08287272fa6755f13c682c5dbc435015217153ef27ada8b53667ce9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07737",
    "kind": "arxiv",
    "version": 2
  }
}