Pith Number

pith:Y4DQQWXL

pith:2016:Y4DQQWXLUZQJYSEAYOG5IE257M

not attested not anchored not stored refs pending

Totally acyclic complexes

Alina Iacob, Sergio Estrada, Xianhui Fu

arxiv:1603.03850 v2 · 2016-03-12 · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y4DQQWXLUZQJYSEAYOG5IE257M}

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	2026-05-18T01:11:54.657024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c707085aeba6609c4880c38dd4135dfb3aebb1527bb47a3d2ce41c0fb27cffdc

Aliases

arxiv: 1603.03850 · arxiv_version: 1603.03850v2 · doi: 10.48550/arxiv.1603.03850 · pith_short_12: Y4DQQWXLUZQJ · pith_short_16: Y4DQQWXLUZQJYSEA · pith_short_8: Y4DQQWXL

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/Y4DQQWXLUZQJYSEAYOG5IE257M \
  | 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: c707085aeba6609c4880c38dd4135dfb3aebb1527bb47a3d2ce41c0fb27cffdc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98588047e989ea4447ea1250f827655df1b5719d3f7d3574cc50e75b34292beb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2016-03-12T02:39:08Z",
    "title_canon_sha256": "8ca7da039fa1c40be69e0904ee524057094f21f7cc68a289e0c504fe359cf4ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.03850",
    "kind": "arxiv",
    "version": 2
  }
}