Pith Number

pith:JPITTCC7

pith:2016:JPITTCC7VOS7GJ663BFQ6RWXL5

not attested not anchored not stored refs pending

Actions of finite groups and smooth functions on surfaces

Bohdan Feshchenko

arxiv:1610.01219 v1 · 2016-10-04 · math.AT · 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{JPITTCC7VOS7GJ663BFQ6RWXL5}

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	2026-05-18T01:03:11.393060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bd139885faba5f327ded84b0f46d75f68eef14d43664e8db5d8fd7abbeb305c

Aliases

arxiv: 1610.01219 · arxiv_version: 1610.01219v1 · doi: 10.48550/arxiv.1610.01219 · pith_short_12: JPITTCC7VOS7 · pith_short_16: JPITTCC7VOS7GJ66 · pith_short_8: JPITTCC7

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/JPITTCC7VOS7GJ663BFQ6RWXL5 \
  | 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: 4bd139885faba5f327ded84b0f46d75f68eef14d43664e8db5d8fd7abbeb305c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae615571a3249d1636fe09a891d9d03d6d57031a34b733c5b1cc2df0b0b0104b",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2016-10-04T21:56:34Z",
    "title_canon_sha256": "58aaec861d4cca190713d0177dc2888360e54c373b81c08757564c5658eab783"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.01219",
    "kind": "arxiv",
    "version": 1
  }
}