Pith Number

pith:HBW7ZV24

pith:2019:HBW7ZV24KWVN2MVMG2M5WCTKH7

not attested not anchored not stored refs pending

Cost vs. Information Tradeoffs for Treasure Hunt in the Plane

Andrzej Pelc, Ram Narayan Yadav

arxiv:1902.06090 v1 · 2019-02-16 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HBW7ZV24KWVN2MVMG2M5WCTKH7}

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	2026-05-17T23:53:46.606852Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

386dfcd75c55aadd32ac3699db0a6a3fd8042705ddff44ff056c5c8a193f54dd

Aliases

arxiv: 1902.06090 · arxiv_version: 1902.06090v1 · doi: 10.48550/arxiv.1902.06090 · pith_short_12: HBW7ZV24KWVN · pith_short_16: HBW7ZV24KWVN2MVM · pith_short_8: HBW7ZV24

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/HBW7ZV24KWVN2MVMG2M5WCTKH7 \
  | 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: 386dfcd75c55aadd32ac3699db0a6a3fd8042705ddff44ff056c5c8a193f54dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f08842bc3cd020024014bbaf917d148a57fa8b2784321efc4859f172f2177c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-02-16T11:17:30Z",
    "title_canon_sha256": "e0769df7e00da972c5a08b81062c3bfb855f4f4690dc0d4edbf5e99f1f416d96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.06090",
    "kind": "arxiv",
    "version": 1
  }
}