Pith Number

pith:JXY7API7

pith:2019:JXY7API7BAODH6PDAE74SN74CY

not attested not anchored not stored refs pending

The Power of Self-Reducibility: Selectivity, Information, and Approximation

Lane A. Hemaspaandra

arxiv:1902.08299 v3 · 2019-02-21 · 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{JXY7API7BAODH6PDAE74SN74CY}

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	2026-05-17T23:51:13.800493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4df1f03d1f081c33f9e3013fc937fc1610a2ac4e226a9de6cd8a12a800ea3a7c

Aliases

arxiv: 1902.08299 · arxiv_version: 1902.08299v3 · doi: 10.48550/arxiv.1902.08299 · pith_short_12: JXY7API7BAOD · pith_short_16: JXY7API7BAODH6PD · pith_short_8: JXY7API7

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/JXY7API7BAODH6PDAE74SN74CY \
  | 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: 4df1f03d1f081c33f9e3013fc937fc1610a2ac4e226a9de6cd8a12a800ea3a7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3bab6ea736639c7f81ce764748e2f5cc996e7aa931bbe4787c27b3cf88363f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2019-02-21T23:04:54Z",
    "title_canon_sha256": "aab2cb9f907f9211012713e3cbd34b007f74fe545ec2ac16d26b58294fcbed54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08299",
    "kind": "arxiv",
    "version": 3
  }
}