Pith Number

pith:D5IQDIXP

pith:2019:D5IQDIXP3OW3YMGHRF3SKLM535

not attested not anchored not stored refs pending

The category of cellular resolutions

Laura Jakobsson

arxiv:1902.09873 v2 · 2019-02-26 · math.AC · 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{D5IQDIXP3OW3YMGHRF3SKLM535}

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	2026-05-17T23:48:30.272034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f5101a2efdbadbc30c78977252d9ddf5e1433b1b9454b63dd93d5e31ad3f15c

Aliases

arxiv: 1902.09873 · arxiv_version: 1902.09873v2 · doi: 10.48550/arxiv.1902.09873 · pith_short_12: D5IQDIXP3OW3 · pith_short_16: D5IQDIXP3OW3YMGH · pith_short_8: D5IQDIXP

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/D5IQDIXP3OW3YMGHRF3SKLM535 \
  | 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: 1f5101a2efdbadbc30c78977252d9ddf5e1433b1b9454b63dd93d5e31ad3f15c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a443d8a7e8f2965403e17364fc9c8359b7b158bb186d7f7cb978128ea25523fa",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2019-02-26T11:51:25Z",
    "title_canon_sha256": "def9ff7c77dd93afd547a1bccbb219227a0746443d6432fedb9ca07e2dc9d5d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09873",
    "kind": "arxiv",
    "version": 2
  }
}