Pith Number

pith:UWM76OUH

pith:2022:UWM76OUHVD6KRIPDK46RJYW5D2

not attested not anchored not stored refs pending

Adams-type maps are not stable under composition

Ishan Levy, Piotr Pstr\k{a}gowski, Robert Burklund

arxiv:2202.14004 v1 · 2022-02-28 · 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{UWM76OUHVD6KRIPDK46RJYW5D2}

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	2026-07-05T04:00:36.089113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a599ff3a87a8fca8a1e3573d14e2dd1e88d3425468b1aac5988bab28fd8bdfc8

Aliases

arxiv: 2202.14004 · arxiv_version: 2202.14004v1 · doi: 10.48550/arxiv.2202.14004 · pith_short_12: UWM76OUHVD6K · pith_short_16: UWM76OUHVD6KRIPD · pith_short_8: UWM76OUH

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/UWM76OUHVD6KRIPDK46RJYW5D2 \
  | 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: a599ff3a87a8fca8a1e3573d14e2dd1e88d3425468b1aac5988bab28fd8bdfc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d8a82aac6a6fe34a56604ac8459f4844f9c797249c62006874eb69160ef9d2d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2022-02-28T18:22:36Z",
    "title_canon_sha256": "12649f764bebb25aefca06012236dfde3401c7d74222a674180a96ce00f24e48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.14004",
    "kind": "arxiv",
    "version": 1
  }
}