Pith Number

pith:54UK64CC

pith:2017:54UK64CCO6ZBC3UDC2GITUK3GG

not attested not anchored not stored refs pending

Mapping the world population one building at a time

Amy Zhang, Andreas Gros, Brian Blankespoor, Espen B. Prydz, Gregory Yetman, Hai-Anh H. Dang, Nan Li, Siobhan Murray, Talip Kilic, Tobias G. Tiecke, Xianming Liu

arxiv:1712.05839 v1 · 2017-12-15 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{54UK64CCO6ZBC3UDC2GITUK3GG}

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	2026-05-18T00:27:51.767960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef28af704277b2116e83168c89d15b319d867c52fa7739c0b3a843a4ae4628bd

Aliases

arxiv: 1712.05839 · arxiv_version: 1712.05839v1 · doi: 10.48550/arxiv.1712.05839 · pith_short_12: 54UK64CCO6ZB · pith_short_16: 54UK64CCO6ZBC3UD · pith_short_8: 54UK64CC

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/54UK64CCO6ZBC3UDC2GITUK3GG \
  | 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: ef28af704277b2116e83168c89d15b319d867c52fa7739c0b3a843a4ae4628bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "427590296c5cf608615f9b6de670e156c7709de442e6b63f5b34ed81cd74256d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-12-15T21:18:05Z",
    "title_canon_sha256": "8349b775ee7611d5e6e23bb7693e2da14af5b7d579eb5447cd559896aad9ae40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.05839",
    "kind": "arxiv",
    "version": 1
  }
}