Pith Number

pith:D6EYDJYW

pith:2017:D6EYDJYW6G5G36NTSG5V3PFIHI

not attested not anchored not stored refs pending

Free Action of Finite Groups on Spaces of Cohomology Type (0, b)

Hemant Kumar Singh, Somorjit K Singh, Tej Bahadur Singh

arxiv:1705.04846 v1 · 2017-05-13 · 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{D6EYDJYW6G5G36NTSG5V3PFIHI}

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	2026-05-18T00:44:34.501968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f8981a716f1ba6df9b391bb5dbca83a169ecc7d0fa807b6ab049577cae1ad24

Aliases

arxiv: 1705.04846 · arxiv_version: 1705.04846v1 · doi: 10.48550/arxiv.1705.04846 · pith_short_12: D6EYDJYW6G5G · pith_short_16: D6EYDJYW6G5G36NT · pith_short_8: D6EYDJYW

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/D6EYDJYW6G5G36NTSG5V3PFIHI \
  | 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: 1f8981a716f1ba6df9b391bb5dbca83a169ecc7d0fa807b6ab049577cae1ad24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e19d8efecb5ee8137e1fa25b6834ceeebb29c79406bfdd3f2b8f6cecb74ed851",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-05-13T15:48:43Z",
    "title_canon_sha256": "d9fe8156155a1cb9e4d1010f6f28870464a491e7ffec03802e0ea059a054ca34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.04846",
    "kind": "arxiv",
    "version": 1
  }
}