Pith Number

pith:YXSTVLYK

pith:2026:YXSTVLYKWZDTLXWBT7FCIPNQ3T

not attested not anchored not stored refs pending

Where's Waldo Library? Using Reverse IP Geolocation to Identify Library IPs

Alexander Gamero-Garrido, Anyu Yang, Ashutosh Kshirsagar, David Choffnes, Elizabeth Belding, Humaira Fasih Ahmed Hashmi, Jiayi Liu, Kevin Vermeulen, Nishant Acharya, Shivani Kalamadi

arxiv:2605.30791 v1 · 2026-05-29 · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YXSTVLYKWZDTLXWBT7FCIPNQ3T}

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	2026-06-01T01:03:16.914210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5e53aaf0ab64735dec19fca243db0dcfdd395a0dba7c0f70ee7634af5eb9a35

Aliases

arxiv: 2605.30791 · arxiv_version: 2605.30791v1 · doi: 10.48550/arxiv.2605.30791 · pith_short_12: YXSTVLYKWZDT · pith_short_16: YXSTVLYKWZDTLXWB · pith_short_8: YXSTVLYK

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/YXSTVLYKWZDTLXWBT7FCIPNQ3T \
  | 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: c5e53aaf0ab64735dec19fca243db0dcfdd395a0dba7c0f70ee7634af5eb9a35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faf7aa8bfc8ca93595f11b1bc03a55dd802a46dfd972a93dd82941480d125310",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2026-05-29T03:28:21Z",
    "title_canon_sha256": "3a38e8be3fe524ba59fb76efabe4e1f27c403adcf5f7a2eae1f893c3c1a6722c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.30791",
    "kind": "arxiv",
    "version": 1
  }
}