Pith Number

pith:ODFI5SXK

pith:2013:ODFI5SXK7KDNAQUEJ6K7FDPMBJ

not attested not anchored not stored refs pending

Continuity of discrete homomorphisms of diffeomorphism groups

Sebastian Hurtado

arxiv:1307.4447 v4 · 2013-07-16 · math.GT · math.DS · math.GN · 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{ODFI5SXK7KDNAQUEJ6K7FDPMBJ}

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	2026-05-18T01:11:03.623324Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70ca8ecaeafa86d042844f95f28dec0a76a9496a210c8ac7b807d83931a8be5c

Aliases

arxiv: 1307.4447 · arxiv_version: 1307.4447v4 · doi: 10.48550/arxiv.1307.4447 · pith_short_12: ODFI5SXK7KDN · pith_short_16: ODFI5SXK7KDNAQUE · pith_short_8: ODFI5SXK

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/ODFI5SXK7KDNAQUEJ6K7FDPMBJ \
  | 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: 70ca8ecaeafa86d042844f95f28dec0a76a9496a210c8ac7b807d83931a8be5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1aaf4e1a09beb85e03ab55ba25431e393694ecde84bbddec8abbf40abf13c3eb",
    "cross_cats_sorted": [
      "math.DS",
      "math.GN",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2013-07-16T23:09:39Z",
    "title_canon_sha256": "2a772d9ba35487f352a217c21df360ebc2f6b038341586a75b4d8e1450f43f6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.4447",
    "kind": "arxiv",
    "version": 4
  }
}