Pith Number

pith:E3FRWLVR

pith:2021:E3FRWLVR7DZAGWFVHFIHR3PJA4

not attested not anchored not stored refs pending

A volumetric change detection framework using UAV oblique photogrammetry - A case study of ultra-high-resolution monitoring of progressive building collapse

Alper Yilmaz, Chris Strasbaugh, Debao Huang, Halil Sezen, Ningli Xu, Rongjun Qin, Shuang Song, Xiao Ling

arxiv:2108.02800 v1 · 2021-08-05 · 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{E3FRWLVR7DZAGWFVHFIHR3PJA4}

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	2026-07-05T03:03:42.141572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26cb1b2eb1f8f20358b5395078ede90736dd46dd24cfa0736c9ab3cc029019dd

Aliases

arxiv: 2108.02800 · arxiv_version: 2108.02800v1 · doi: 10.48550/arxiv.2108.02800 · pith_short_12: E3FRWLVR7DZA · pith_short_16: E3FRWLVR7DZAGWFV · pith_short_8: E3FRWLVR

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/E3FRWLVR7DZAGWFVHFIHR3PJA4 \
  | 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: 26cb1b2eb1f8f20358b5395078ede90736dd46dd24cfa0736c9ab3cc029019dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44fa534b4dfa8c6b474a2311fdf0549a895c8120dac3911a6c6be38070811f51",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-08-05T18:20:29Z",
    "title_canon_sha256": "8790ae42af4938edd5bb2bc39204282a1f958620e68bd8ac610e8c5c6f1f8e65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.02800",
    "kind": "arxiv",
    "version": 1
  }
}