Pith Number

pith:JGDJK4YC

pith:2017:JGDJK4YCMMAUWXXP3NWPFB7XIL

not attested not anchored not stored refs pending

A refined estimate for the topological degree

Hoai-Minh Nguyen

arxiv:1710.02994 v1 · 2017-10-09 · math.AP · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JGDJK4YCMMAUWXXP3NWPFB7XIL}

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	2026-05-18T00:33:28.270763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

498695730263014b5eefdb6cf287f742dd02d3e7f5f5dcb210de187a015da157

Aliases

arxiv: 1710.02994 · arxiv_version: 1710.02994v1 · doi: 10.48550/arxiv.1710.02994 · pith_short_12: JGDJK4YCMMAU · pith_short_16: JGDJK4YCMMAUWXXP · pith_short_8: JGDJK4YC

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/JGDJK4YCMMAUWXXP3NWPFB7XIL \
  | 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: 498695730263014b5eefdb6cf287f742dd02d3e7f5f5dcb210de187a015da157

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dac51b49e31f7e71d1d92af72fef6bb502c1995c8fdbc5e5dd0a0f91260cc998",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-10-09T08:56:48Z",
    "title_canon_sha256": "ff0ffc53eb2914afa0a019c8c437505815f39d751bdc55e19b03f16e2e0c2559"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.02994",
    "kind": "arxiv",
    "version": 1
  }
}