Pith Number

pith:2AWRDOG6

pith:2013:2AWRDOG62S4GKCUIPIIJC5W42I

not attested not anchored not stored refs pending

Maps between certain complex Grassmann manifolds

Parameswaran Sankaran, Prateep Chakraborty

arxiv:1312.4743 v1 · 2013-12-17 · 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{2AWRDOG62S4GKCUIPIIJC5W42I}

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	2026-05-18T02:41:08.775265Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d02d11b8ded4b8650a887a109176dcd20b21828e40a6a89e459da03db9593f08

Aliases

arxiv: 1312.4743 · arxiv_version: 1312.4743v1 · doi: 10.48550/arxiv.1312.4743 · pith_short_12: 2AWRDOG62S4G · pith_short_16: 2AWRDOG62S4GKCUI · pith_short_8: 2AWRDOG6

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/2AWRDOG62S4GKCUIPIIJC5W42I \
  | 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: d02d11b8ded4b8650a887a109176dcd20b21828e40a6a89e459da03db9593f08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "635dfb36b9e271c2d24d8bb1989a6262e40544aad342fe7201435252897ff9f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2013-12-17T12:21:22Z",
    "title_canon_sha256": "190916df3abcb7ef11bf70d7780d0ef2bf4c540f2fed218e2153edf45d597b8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.4743",
    "kind": "arxiv",
    "version": 1
  }
}