Pith Number

pith:UMABFLIN

pith:2019:UMABFLINZZWO4RK4QFEKZ4K3MY

not attested not anchored not stored refs pending

Parameterized Fine-Grained Reductions

Antonis Antonopoulos, Aris Pagourtzis, Elli Anastasiadi, Stavros Petsalakis

arxiv:1902.05529 v1 · 2019-02-14 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UMABFLINZZWO4RK4QFEKZ4K3MY}

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	2026-05-17T23:53:58.459459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a30012ad0dce6cee455c8148acf15b660f1d088ed2f910f4ec784d31604ab7b2

Aliases

arxiv: 1902.05529 · arxiv_version: 1902.05529v1 · doi: 10.48550/arxiv.1902.05529 · pith_short_12: UMABFLINZZWO · pith_short_16: UMABFLINZZWO4RK4 · pith_short_8: UMABFLIN

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/UMABFLINZZWO4RK4QFEKZ4K3MY \
  | 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: a30012ad0dce6cee455c8148acf15b660f1d088ed2f910f4ec784d31604ab7b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3c83c03311e4fa69554b5728ec747095ce5ba549c105ba4ab4b4ac995913d8e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2019-02-14T18:10:23Z",
    "title_canon_sha256": "98e278535f67fec68330b031b70cafc04fc419e334db84d1dea3b04945a38c87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05529",
    "kind": "arxiv",
    "version": 1
  }
}