Pith Number

pith:BGNH2FDH

pith:2017:BGNH2FDHSUWH7A4GQDLFQTIERH

not attested not anchored not stored refs pending

Relatively Hyperbolic Groups have Semistabile Fundamental Group at Infinity

Eric Swenson, Michael L. Mihalik

arxiv:1709.02420 v2 · 2017-09-07 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BGNH2FDHSUWH7A4GQDLFQTIERH}

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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

Piecewise Visual, Linearly Connected Metrics on Boundaries of Relatively Hyperbolic Groups

Receipt and verification

First computed	2026-07-05T01:59:49.318266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

099a7d1467952c7f838680d6584d0489ce555beea1fbc45d61623606c94e590f

Aliases

arxiv: 1709.02420 · arxiv_version: 1709.02420v2 · doi: 10.48550/arxiv.1709.02420 · pith_short_12: BGNH2FDHSUWH · pith_short_16: BGNH2FDHSUWH7A4G · pith_short_8: BGNH2FDH

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/BGNH2FDHSUWH7A4GQDLFQTIERH \
  | 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: 099a7d1467952c7f838680d6584d0489ce555beea1fbc45d61623606c94e590f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da005722938f15efd799851f4e2f7ee81f8d84f4cafb5aa5fa0f126acdc4a385",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-09-07T19:33:36Z",
    "title_canon_sha256": "eab798d78f946ffc2c248049111e053ea9a22c9a05440de71a71a260837025aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02420",
    "kind": "arxiv",
    "version": 2
  }
}