Pith Number

pith:SEH45K2U

pith:2015:SEH45K2UFQTGLDARET5U6XSYNB

not attested not anchored not stored refs pending

The bordism group of unbounded KK-cycles

Bram Mesland, Magnus Goffeng, Robin J. Deeley

arxiv:1503.07398 v2 · 2015-03-25 · math.KT · math.FA · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SEH45K2UFQTGLDARET5U6XSYNB}

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	2026-05-18T00:09:36.967071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

910fceab542c26658c1124fb4f5e58685e2aff4d15a93b91d702a72888574b63

Aliases

arxiv: 1503.07398 · arxiv_version: 1503.07398v2 · doi: 10.48550/arxiv.1503.07398 · pith_short_12: SEH45K2UFQTG · pith_short_16: SEH45K2UFQTGLDAR · pith_short_8: SEH45K2U

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/SEH45K2UFQTGLDARET5U6XSYNB \
  | 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: 910fceab542c26658c1124fb4f5e58685e2aff4d15a93b91d702a72888574b63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85e9d4a0e7e710f3a0815a487f61aadc86a82b9113920e6488b4a311737d3180",
    "cross_cats_sorted": [
      "math.FA",
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2015-03-25T14:43:18Z",
    "title_canon_sha256": "888205c6a6cae55607fbb65934c9c6feee14f6d8d23d7d1566e7d9d7b2fb391d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07398",
    "kind": "arxiv",
    "version": 2
  }
}