Pith Number

pith:D4AJCOOE

pith:2014:D4AJCOOEBTK6KAU5E5J537NXDW

not attested not anchored not stored refs pending

Abelian and metabelian quotients of surface braid groups

Eddy Godelle (LMNO), John Guaschi (LMNO), Paolo Bellingeri (LMNO)

arxiv:1404.0629 v1 · 2014-03-25 · 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{D4AJCOOEBTK6KAU5E5J537NXDW}

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	2026-05-18T02:55:02.958435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f009139c40cd5e5029d2753ddfdb71d8d426b92fcff8afcc39d724775fcaa7e

Aliases

arxiv: 1404.0629 · arxiv_version: 1404.0629v1 · doi: 10.48550/arxiv.1404.0629 · pith_short_12: D4AJCOOEBTK6 · pith_short_16: D4AJCOOEBTK6KAU5 · pith_short_8: D4AJCOOE

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/D4AJCOOEBTK6KAU5E5J537NXDW \
  | 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: 1f009139c40cd5e5029d2753ddfdb71d8d426b92fcff8afcc39d724775fcaa7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8f9db304fb592a261f647e4e3fec25862230a90759162c88d17526375c96811",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2014-03-25T12:24:55Z",
    "title_canon_sha256": "28c68daaa00bae046bc32eda17b81f959ddb1d0c49e80f544f8918d79654df82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.0629",
    "kind": "arxiv",
    "version": 1
  }
}