Pith Number

pith:4BXQR7PT

pith:2017:4BXQR7PTLDTCWFGQTP5WMGDUGQ

not attested not anchored not stored refs pending

Equivariant maps between representation spheres

Mahender Singh, Wac{\l}aw Marzantowicz, Zbigniew B{\l}aszczyk

arxiv:1704.01656 v2 · 2017-04-05 · 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{4BXQR7PTLDTCWFGQTP5WMGDUGQ}

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	2026-05-18T00:26:37.223852Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e06f08fdf358e62b14d09bfb66187434328725a72c11cab955aaa2e3bcae3b97

Aliases

arxiv: 1704.01656 · arxiv_version: 1704.01656v2 · doi: 10.48550/arxiv.1704.01656 · pith_short_12: 4BXQR7PTLDTC · pith_short_16: 4BXQR7PTLDTCWFGQ · pith_short_8: 4BXQR7PT

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/4BXQR7PTLDTCWFGQTP5WMGDUGQ \
  | 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: e06f08fdf358e62b14d09bfb66187434328725a72c11cab955aaa2e3bcae3b97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00bd122fc91544c468b263ff1767f570edc14ab8cf05ac5ce0ffc0097c7252cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-04-05T21:53:16Z",
    "title_canon_sha256": "39b4bb24dbbed573142c8f41aacd1a509866ede04a36db21114cd20191519314"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.01656",
    "kind": "arxiv",
    "version": 2
  }
}