Pith Number

pith:QPABV4VF

pith:2015:QPABV4VFWXBQVHKJRLSFLCWZSQ

not attested not anchored not stored refs pending

Preprint Big City 3D Visual Analysis

Baoyun Zhang, Jinxing Hu, Shengzhong Feng, Weixi Wang, Xiaoming Li, Zhihan Lv

arxiv:1504.01379 v2 · 2015-04-06 · cs.GR · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QPABV4VFWXBQVHKJRLSFLCWZSQ}

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	2026-05-18T01:36:07.901089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83c01af2a5b5c30a9d498ae4558ad99422445ec3f8cdc96db0de35443fb83395

Aliases

arxiv: 1504.01379 · arxiv_version: 1504.01379v2 · doi: 10.48550/arxiv.1504.01379 · pith_short_12: QPABV4VFWXBQ · pith_short_16: QPABV4VFWXBQVHKJ · pith_short_8: QPABV4VF

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/QPABV4VFWXBQVHKJRLSFLCWZSQ \
  | 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: 83c01af2a5b5c30a9d498ae4558ad99422445ec3f8cdc96db0de35443fb83395

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86366b02ebc51bc13af8bf83f5cf4168a63b141c3bb32ff7352db7cb68341434",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2015-04-06T15:53:09Z",
    "title_canon_sha256": "e820ba3810dda33606854c5d3f40d0b5362a65f13b5684d29cd544822161762d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01379",
    "kind": "arxiv",
    "version": 2
  }
}