Pith Number

pith:2KY7AKIB

pith:2019:2KY7AKIBV2CETNTXN2Z3DW5C77

not attested not anchored not stored refs pending

Comparison-Based Indexing From First Principles

Magnus Lie Hetland

arxiv:1908.06318 v1 · 2019-08-17 · cs.DS · 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{2KY7AKIBV2CETNTXN2Z3DW5C77}

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	2026-07-04T23:58:14.532027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2b1f02901ae8449b6776eb3b1dba2ffd6d21af46913d62148e637529b90866a

Aliases

arxiv: 1908.06318 · arxiv_version: 1908.06318v1 · doi: 10.48550/arxiv.1908.06318 · pith_short_12: 2KY7AKIBV2CE · pith_short_16: 2KY7AKIBV2CETNTX · pith_short_8: 2KY7AKIB

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/2KY7AKIBV2CETNTXN2Z3DW5C77 \
  | 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: d2b1f02901ae8449b6776eb3b1dba2ffd6d21af46913d62148e637529b90866a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a123238f6e4dc5fedc83155b396a6bdb479b8848658683c59ec89dc353118bdf",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-08-17T16:54:40Z",
    "title_canon_sha256": "79cba9f0dfb6d8dcb76173b37d0166b6528d1ad514e3959d243a3c48c8da98a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06318",
    "kind": "arxiv",
    "version": 1
  }
}