Pith Number

pith:ALPCMXCD

pith:2015:ALPCMXCDXR7WPTOZWU6MHEIDNN

not attested not anchored not stored refs pending

Obstructions to compatible splittings

Andrew Salch

arxiv:1501.01389 v1 · 2015-01-07 · math.RT · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ALPCMXCDXR7WPTOZWU6MHEIDNN}

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	2026-05-18T02:29:54.350126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02de265c43bc7f67cdd9b53cc391036b7144f32f241856d3f6be38135de47861

Aliases

arxiv: 1501.01389 · arxiv_version: 1501.01389v1 · doi: 10.48550/arxiv.1501.01389 · pith_short_12: ALPCMXCDXR7W · pith_short_16: ALPCMXCDXR7WPTOZ · pith_short_8: ALPCMXCD

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/ALPCMXCDXR7WPTOZWU6MHEIDNN \
  | 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: 02de265c43bc7f67cdd9b53cc391036b7144f32f241856d3f6be38135de47861

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db4e01475780e87dc6db052164e9a9c52cc7e23ae81ae17d8bf4e31ccf6e8315",
    "cross_cats_sorted": [
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2015-01-07T08:25:10Z",
    "title_canon_sha256": "e185974c472ac6e32ee14901315b05a9703bf6bab3ab86a12128f0ae590652b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01389",
    "kind": "arxiv",
    "version": 1
  }
}