Pith Number

pith:AIBKXU73

pith:2015:AIBKXU73F2YPFF3KR724WAK7ID

not attested not anchored not stored refs pending

Desuspensions of S^1 /\ P^1_Q-{0,1,infty}

Kirsten Wickelgren

arxiv:1502.07811 v1 · 2015-02-27 · math.AT · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AIBKXU73F2YPFF3KR724WAK7ID}

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	2026-05-18T02:26:02.111797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0202abd3fb2eb0f2976a8ff5cb015f40e5fae43c35887025c6e7d4e8e8053cf4

Aliases

arxiv: 1502.07811 · arxiv_version: 1502.07811v1 · doi: 10.48550/arxiv.1502.07811 · pith_short_12: AIBKXU73F2YP · pith_short_16: AIBKXU73F2YPFF3K · pith_short_8: AIBKXU73

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/AIBKXU73F2YPFF3KR724WAK7ID \
  | 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: 0202abd3fb2eb0f2976a8ff5cb015f40e5fae43c35887025c6e7d4e8e8053cf4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42fd37081d75483539ca6f690a778d4f40171c5d02300065494398a36cf4ff72",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2015-02-27T03:23:51Z",
    "title_canon_sha256": "379f4f831763c766a0a1158ae2c6cf92abcb77e0b41b7683a9bf5400bf6ebae6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07811",
    "kind": "arxiv",
    "version": 1
  }
}