Pith Number

pith:DQQ3ARFR

pith:2018:DQQ3ARFRFZKF7X6FVM5AZTADKO

not attested not anchored not stored refs pending

Algebraic stories from one and from the other pockets

Alessandro Oneto, Boris Shapiro, Ralf Fr\"oberg, Samuel Lundqvist

arxiv:1801.01692 v1 · 2018-01-05 · 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{DQQ3ARFRFZKF7X6FVM5AZTADKO}

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	2026-05-17T23:46:55.524642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c21b044b12e545fdfc5ab3a0ccc0353b9049474a8c780ba1296caefaab5ae54

Aliases

arxiv: 1801.01692 · arxiv_version: 1801.01692v1 · doi: 10.48550/arxiv.1801.01692 · pith_short_12: DQQ3ARFRFZKF · pith_short_16: DQQ3ARFRFZKF7X6F · pith_short_8: DQQ3ARFR

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/DQQ3ARFRFZKF7X6FVM5AZTADKO \
  | 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: 1c21b044b12e545fdfc5ab3a0ccc0353b9049474a8c780ba1296caefaab5ae54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19693df0e1f549cecf56a4a787ae345d6fdb07822ed8f8392d065e4fb58a6bbb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2018-01-05T10:24:31Z",
    "title_canon_sha256": "77e920e90c2cbe1b6a420a28d98b75bd3d7ab5c46fdc7d37c4a637378f6ec4d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.01692",
    "kind": "arxiv",
    "version": 1
  }
}