Pith Number

pith:42GXWLF2

pith:2016:42GXWLF2UDZU72SUAFPFCLXXCW

not attested not anchored not stored refs pending

Some results on the topology of real Bott towers

Raisa Dsouza, V. Uma

arxiv:1609.05630 v1 · 2016-09-19 · 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{42GXWLF2UDZU72SUAFPFCLXXCW}

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	2026-05-18T01:04:25.821142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e68d7b2cbaa0f34fea54015e512ef71584c86f4bef6848e3cf2d8c82d4e5fc85

Aliases

arxiv: 1609.05630 · arxiv_version: 1609.05630v1 · doi: 10.48550/arxiv.1609.05630 · pith_short_12: 42GXWLF2UDZU · pith_short_16: 42GXWLF2UDZU72SU · pith_short_8: 42GXWLF2

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/42GXWLF2UDZU72SUAFPFCLXXCW \
  | 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: e68d7b2cbaa0f34fea54015e512ef71584c86f4bef6848e3cf2d8c82d4e5fc85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8843398ba1d5247cefe4709448510b0a54047af98eb142c0e3734aa683a41da8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2016-09-19T08:26:34Z",
    "title_canon_sha256": "c9cef763157d21cfb1c3c55720fd144cba536d5684dda9130e6cabf868a7e36b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.05630",
    "kind": "arxiv",
    "version": 1
  }
}