Pith Number

pith:MTXZX3A3

pith:2017:MTXZX3A35XQ2C2IODT3DWT25LU

not attested not anchored not stored refs pending

Isomorphisms between big mapping class groups

Juliette Bavard, Kasra Rafi, Spencer Dowdall

arxiv:1708.08383 v3 · 2017-08-28 · math.GR · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MTXZX3A35XQ2C2IODT3DWT25LU}

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	2026-05-18T00:17:19.168955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64ef9bec1bede1a1690e1cf63b4f5d5d2a70a431fe9c178f91e96b27ec3ba0a9

Aliases

arxiv: 1708.08383 · arxiv_version: 1708.08383v3 · doi: 10.48550/arxiv.1708.08383 · pith_short_12: MTXZX3A35XQ2 · pith_short_16: MTXZX3A35XQ2C2IO · pith_short_8: MTXZX3A3

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/MTXZX3A35XQ2C2IODT3DWT25LU \
  | 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: 64ef9bec1bede1a1690e1cf63b4f5d5d2a70a431fe9c178f91e96b27ec3ba0a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "302772b61bc681fbb0de496bdae4134d8566fabb729373c9a473a6cc86bd45c1",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-08-28T15:43:33Z",
    "title_canon_sha256": "0fe652022605d34ea5891199dc12ec1a7910ea9b10a289c6c9396c55e9d5b029"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.08383",
    "kind": "arxiv",
    "version": 3
  }
}