Pith Number

pith:E7V4DH5R

pith:2019:E7V4DH5ROAUL3ERXA2ZBMPRBND

not attested not anchored not stored refs pending

Building change detection based on multi-scale filtering and grid partition

Han Zhang, Kai Xu, Kun Qin, Qi Bi, Wenjun Han, Zhili Li

arxiv:1908.08164 v1 · 2019-08-22 · eess.IV · 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{E7V4DH5ROAUL3ERXA2ZBMPRBND}

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	2026-07-04T23:59:10.163711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27ebc19fb17028bd923706b2163e2168e501d7f257cda2bfba46a7b6f0b48920

Aliases

arxiv: 1908.08164 · arxiv_version: 1908.08164v1 · doi: 10.48550/arxiv.1908.08164 · pith_short_12: E7V4DH5ROAUL · pith_short_16: E7V4DH5ROAUL3ERX · pith_short_8: E7V4DH5R

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/E7V4DH5ROAUL3ERXA2ZBMPRBND \
  | 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: 27ebc19fb17028bd923706b2163e2168e501d7f257cda2bfba46a7b6f0b48920

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f26410939189feafb4ef6b56ca35bdcd1ec7b7e322278683f11f339642eec63",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2019-08-22T01:38:47Z",
    "title_canon_sha256": "9fe0203f5050213fe7f8170bb3b8f75432f175f50918d3a24725d2b36ef5823c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08164",
    "kind": "arxiv",
    "version": 1
  }
}