Pith Number

pith:NASU3S57

pith:2009:NASU3S57ZUM3OE3AJPUVUEFN2Y

not attested not anchored not stored refs pending

On K(1)-local SU-bordism

Holger Reeker

arxiv:0907.4299 v1 · 2009-07-24 · 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{NASU3S57ZUM3OE3AJPUVUEFN2Y}

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	2026-07-04T15:46:51.002189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68254dcbbfcd19b713604be95a10add61ff2b06594219024ceab79fb92dd3f46

Aliases

arxiv: 0907.4299 · arxiv_version: 0907.4299v1 · doi: 10.48550/arxiv.0907.4299 · pith_short_12: NASU3S57ZUM3 · pith_short_16: NASU3S57ZUM3OE3A · pith_short_8: NASU3S57

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/NASU3S57ZUM3OE3AJPUVUEFN2Y \
  | 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: 68254dcbbfcd19b713604be95a10add61ff2b06594219024ceab79fb92dd3f46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fd1745918cc9e3dfe968bbe293d03e55fa90227e7c930824e3cf1216f7256de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2009-07-24T15:07:00Z",
    "title_canon_sha256": "1793ea7b827e08052af604ae9c3ae026ce4e840ef750e3d6e61b7c054d3baf86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4299",
    "kind": "arxiv",
    "version": 1
  }
}