Pith Number

pith:Y77HOMNQ

pith:2020:Y77HOMNQV72K6H7P2Z7NO3DGQ7

not attested not anchored not stored refs pending

Should bike sharing continue operating during the COVID-19 pandemic? Empirical findings from Nanjing, China

Jingxu Chen, Long Cheng, Mingzhuang Hua, Xuewu Chen

arxiv:2012.02946 v1 · 2020-12-05 · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y77HOMNQV72K6H7P2Z7NO3DGQ7}

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	2026-07-05T01:57:24.059580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7fe7731b0aff4af1fefd67ed76c6687ccddc8fc70a861ddf27985dd83e03dc0

Aliases

arxiv: 2012.02946 · arxiv_version: 2012.02946v1 · doi: 10.48550/arxiv.2012.02946 · pith_short_12: Y77HOMNQV72K · pith_short_16: Y77HOMNQV72K6H7P · pith_short_8: Y77HOMNQ

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/Y77HOMNQV72K6H7P2Z7NO3DGQ7 \
  | 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: c7fe7731b0aff4af1fefd67ed76c6687ccddc8fc70a861ddf27985dd83e03dc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22d5f0816eda0c86d26ef095a77df2da4338ce0bfef4c342e5bbefc6246bb289",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2020-12-05T04:39:42Z",
    "title_canon_sha256": "0e3cd7d1d7a080ad63a402430b9413f92087e2c459853d6bb3dfe139663bbb02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.02946",
    "kind": "arxiv",
    "version": 1
  }
}