Pith Number

pith:H3MDFKAS

pith:2021:H3MDFKAS6BH4MAPKTFETDMHBAO

not attested not anchored not stored refs pending

Structured Outdoor Architecture Reconstruction by Exploration and Classification

Fuyang Zhang, Nelson Nauata, Xiang Xu, Yasutaka Furukawa

arxiv:2108.07990 v1 · 2021-08-18 · 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{H3MDFKAS6BH4MAPKTFETDMHBAO}

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	2026-07-05T03:06:50.433835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ed832a812f04fc601ea994931b0e1039b68c3a8922ca3e8d47b363a5c95c8ec

Aliases

arxiv: 2108.07990 · arxiv_version: 2108.07990v1 · doi: 10.48550/arxiv.2108.07990 · pith_short_12: H3MDFKAS6BH4 · pith_short_16: H3MDFKAS6BH4MAPK · pith_short_8: H3MDFKAS

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/H3MDFKAS6BH4MAPKTFETDMHBAO \
  | 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: 3ed832a812f04fc601ea994931b0e1039b68c3a8922ca3e8d47b363a5c95c8ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6b65f9fa841e5af6f11ad132c75a242b45d15db23af16b50384864093fef0ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-08-18T06:28:26Z",
    "title_canon_sha256": "3d73147cfa8c56885c3c4902722307bec8b1ec2178e1852268ce0470ba741d40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.07990",
    "kind": "arxiv",
    "version": 1
  }
}