Pith Number

pith:PMUJ7KNG

pith:2016:PMUJ7KNGNMPIJHYSEBQ7W2KOOC

not attested not anchored not stored refs pending

Document Retrieval using Predication Similarity

Kalpa Gunaratna

arxiv:1604.05754 v1 · 2016-04-19 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PMUJ7KNGNMPIJHYSEBQ7W2KOOC}

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	2026-05-18T01:16:37.271082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b289fa9a66b1e849f122061fb694e70b07189114058e0225c7ff10d9be67b25

Aliases

arxiv: 1604.05754 · arxiv_version: 1604.05754v1 · doi: 10.48550/arxiv.1604.05754 · pith_short_12: PMUJ7KNGNMPI · pith_short_16: PMUJ7KNGNMPIJHYS · pith_short_8: PMUJ7KNG

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/PMUJ7KNGNMPIJHYSEBQ7W2KOOC \
  | 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: 7b289fa9a66b1e849f122061fb694e70b07189114058e0225c7ff10d9be67b25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b564648bee0d85ab34168a26e756db594547b8e70c8fac33f0f31c8b7748ef31",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2016-04-19T21:23:23Z",
    "title_canon_sha256": "bd90dff0cb2f9fbffd79c1b6528e87b43b388989f35f2e78fc2d1f2dfdb910c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.05754",
    "kind": "arxiv",
    "version": 1
  }
}