Pith Number

pith:OPQHMOZR

pith:2021:OPQHMOZRY6KEVL3ATTVNF3W5HF

not attested not anchored not stored refs pending

Learning Large-scale Location Embedding From Human Mobility Trajectories with Graphs

Chenyu Tian, Wai Kin Victor Chan, Xiusen Gu, Yuchun Zhang, Zefeng Weng

arxiv:2103.00483 v2 · 2021-02-23 · cs.SI · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OPQHMOZRY6KEVL3ATTVNF3W5HF}

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	2026-07-05T05:04:24.875125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73e0763b31c7944aaf609cead2eedd394396755c8de43d6d85b10455f7d35387

Aliases

arxiv: 2103.00483 · arxiv_version: 2103.00483v2 · doi: 10.48550/arxiv.2103.00483 · pith_short_12: OPQHMOZRY6KE · pith_short_16: OPQHMOZRY6KEVL3A · pith_short_8: OPQHMOZR

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/OPQHMOZRY6KEVL3ATTVNF3W5HF \
  | 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: 73e0763b31c7944aaf609cead2eedd394396755c8de43d6d85b10455f7d35387

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "891ff6625c1555fb0a8ff14c405dafb5a3ddc1456bdd045c6a8aecf4aac4a122",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2021-02-23T09:11:33Z",
    "title_canon_sha256": "77b1fa7956f6ad1451f33e99ff26edfac3fecba46058ef0146ce6cee3c2ef608"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.00483",
    "kind": "arxiv",
    "version": 2
  }
}