Pith Number

pith:EO2EPHNC

pith:2015:EO2EPHNCYIEBZKGA2V7V7KQEIV

not attested not anchored not stored refs pending

Homological Dimensions Relative to Preresolving Subcategories

Zhaoyong Huang

arxiv:1502.02354 v1 · 2015-02-09 · math.RA · math.CT · 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{EO2EPHNCYIEBZKGA2V7V7KQEIV}

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	2026-05-18T01:28:14.560410Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23b4479da2c2081ca8c0d57f5faa044566dc42ae28f65ecdd3bd4d8b5071df77

Aliases

arxiv: 1502.02354 · arxiv_version: 1502.02354v1 · doi: 10.48550/arxiv.1502.02354 · pith_short_12: EO2EPHNCYIEB · pith_short_16: EO2EPHNCYIEBZKGA · pith_short_8: EO2EPHNC

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/EO2EPHNCYIEBZKGA2V7V7KQEIV \
  | 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: 23b4479da2c2081ca8c0d57f5faa044566dc42ae28f65ecdd3bd4d8b5071df77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f546d0427bd111f0507eac305e131f144e92fd1a91b7159a9b4da8e28f14669",
    "cross_cats_sorted": [
      "math.CT",
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2015-02-09T04:34:05Z",
    "title_canon_sha256": "15dbdfa805cdff65375694640d7cce92749955551bb11d158578dd105dd82f94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02354",
    "kind": "arxiv",
    "version": 1
  }
}