Pith Number

pith:7YZR2K35

pith:2013:7YZR2K35FLPSZGZXSFEWNCBHG6

not attested not anchored not stored refs pending

A Qualitative Representation and Similarity Measurement Method in Geographic Information Retrieval

Lei Liu, Xing Lin, Yong Gao, Yu Liu

arxiv:1311.4644 v1 · 2013-11-19 · 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{7YZR2K35FLPSZGZXSFEWNCBHG6}

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	2026-05-18T03:06:43.792180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe331d2b7d2adf2c9b37914966882737b7624ec5e30d7c0e853b088aea463fbb

Aliases

arxiv: 1311.4644 · arxiv_version: 1311.4644v1 · doi: 10.48550/arxiv.1311.4644 · pith_short_12: 7YZR2K35FLPS · pith_short_16: 7YZR2K35FLPSZGZX · pith_short_8: 7YZR2K35

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/7YZR2K35FLPSZGZXSFEWNCBHG6 \
  | 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: fe331d2b7d2adf2c9b37914966882737b7624ec5e30d7c0e853b088aea463fbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a24e8e4296bfe1d0b491339e2331e9dfc8d5ef8870fc9c22e8259b006c25452d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2013-11-19T08:04:28Z",
    "title_canon_sha256": "02e3aa0415b5948bdbf4323171d38e8b2b9ce8297f9ad277f8562d8bc1092aa5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4644",
    "kind": "arxiv",
    "version": 1
  }
}