Pith Number

pith:F4RAVTZO

pith:2019:F4RAVTZOAODTGZAM5CI3PPYPYD

not attested not anchored not stored refs pending

City-Scale Road Extraction from Satellite Imagery v2: Road Speeds and Travel Times

Adam Van Etten

arxiv:1908.09715 v3 · 2019-08-06 · 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{F4RAVTZOAODTGZAM5CI3PPYPYD}

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	2026-07-05T02:18:03.502964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f220acf2e038733640ce891b7bf0fc0eaf8ced15f3f73c4b2a8e0e7bb514497

Aliases

arxiv: 1908.09715 · arxiv_version: 1908.09715v3 · doi: 10.48550/arxiv.1908.09715 · pith_short_12: F4RAVTZOAODT · pith_short_16: F4RAVTZOAODTGZAM · pith_short_8: F4RAVTZO

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/F4RAVTZOAODTGZAM5CI3PPYPYD \
  | 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: 2f220acf2e038733640ce891b7bf0fc0eaf8ced15f3f73c4b2a8e0e7bb514497

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7661c2f5872f2010d89d2e20f95d1904cc8d3604765e8cdec0fd662297adf75f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-08-06T12:59:28Z",
    "title_canon_sha256": "ee1768de97ec3ad6a5b1256124127be3e74fb30c2606326a267c811cd2da4505"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09715",
    "kind": "arxiv",
    "version": 3
  }
}