Pith Number

pith:3SV2SUUS

pith:2014:3SV2SUUSSP6M2YLFUZ5ZVKQLSU

not attested not anchored not stored refs pending

Tits rigidity of CAT(0) group boundaries

Eric Swenson, Khek Lun Harold Chao

arxiv:1403.3954 v1 · 2014-03-16 · math.MG · 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{3SV2SUUSSP6M2YLFUZ5ZVKQLSU}

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	2026-05-18T01:22:24.265272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcaba9529293fccd6165a67b9aaa0b95298582323d00d2bc95f01e0864a29359

Aliases

arxiv: 1403.3954 · arxiv_version: 1403.3954v1 · doi: 10.48550/arxiv.1403.3954 · pith_short_12: 3SV2SUUSSP6M · pith_short_16: 3SV2SUUSSP6M2YLF · pith_short_8: 3SV2SUUS

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/3SV2SUUSSP6M2YLFUZ5ZVKQLSU \
  | 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: dcaba9529293fccd6165a67b9aaa0b95298582323d00d2bc95f01e0864a29359

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "641a45effea6a86394c41839e1c12a7c689d63c4cd7ce6542551b06f02015646",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2014-03-16T19:53:40Z",
    "title_canon_sha256": "440bde21c43c95841373934b09b4aa58079cb3c79499f9a132489c33db94c707"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.3954",
    "kind": "arxiv",
    "version": 1
  }
}