Pith Number

pith:TZIPRTFN

pith:2019:TZIPRTFND6ULGPPUARVIH5ZW2J

not attested not anchored not stored refs pending

Assessment of Urban Ecological Service value used in Urban Rail Transit Project

Jing Chen, Yijie Li

arxiv:1906.06572 v1 · 2019-06-15 · cs.OH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TZIPRTFND6ULGPPUARVIH5ZW2J}

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	2026-05-17T23:42:49.718217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e50f8ccad1fa8b33df4046a83f736d26a8c5c980d5a43feb9116b0ba6a1dfce

Aliases

arxiv: 1906.06572 · arxiv_version: 1906.06572v1 · doi: 10.48550/arxiv.1906.06572 · pith_short_12: TZIPRTFND6UL · pith_short_16: TZIPRTFND6ULGPPU · pith_short_8: TZIPRTFN

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/TZIPRTFND6ULGPPUARVIH5ZW2J \
  | 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: 9e50f8ccad1fa8b33df4046a83f736d26a8c5c980d5a43feb9116b0ba6a1dfce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5f14917bf609b06cd77c6045e6dfa6570042b5e95cbf2c9f2c01f672840b664",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.OH",
    "submitted_at": "2019-06-15T14:36:29Z",
    "title_canon_sha256": "5befd56c8082a3a136bc3950122f1028db72eed50891a9623bd2ed1433b9488c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.06572",
    "kind": "arxiv",
    "version": 1
  }
}