Pith Number

pith:IFFBJBNL

pith:2013:IFFBJBNLECMF2EB4D7AO6CQFCV

not attested not anchored not stored refs pending

Group localization and two problems of Levine

Kent E. Orr, Roman Mikhailov

arxiv:1306.6065 v1 · 2013-06-25 · math.AT · 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{IFFBJBNLECMF2EB4D7AO6CQFCV}

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	2026-05-18T03:19:57.845113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

414a1485ab20985d103c1fc0ef0a0515592e5dd16f7632f0467d21216a9ff5cf

Aliases

arxiv: 1306.6065 · arxiv_version: 1306.6065v1 · doi: 10.48550/arxiv.1306.6065 · pith_short_12: IFFBJBNLECMF · pith_short_16: IFFBJBNLECMF2EB4 · pith_short_8: IFFBJBNL

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/IFFBJBNLECMF2EB4D7AO6CQFCV \
  | 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: 414a1485ab20985d103c1fc0ef0a0515592e5dd16f7632f0467d21216a9ff5cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27220909a805a2dcbae87fcfc3000770d633a4e9e5afef571a591cd5c3a40b2d",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2013-06-25T19:06:20Z",
    "title_canon_sha256": "623981eb3a2fdbfc384aacf235db7667c96567abeb5d291a4af91942d19159af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.6065",
    "kind": "arxiv",
    "version": 1
  }
}