Pith Number

pith:M7H3GPQE

pith:2020:M7H3GPQEIUOSVVLBARZYEXBRAM

not attested not anchored not stored refs pending

Twitter, human mobility, and COVID-19

Dwayne Porter, Xiao Huang, Xiaoming Li, Yuqin Jiang, Zhenlong Li

arxiv:2007.01100 v1 · 2020-06-24 · cs.SI · cs.CY · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M7H3GPQEIUOSVVLBARZYEXBRAM}

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	2026-07-05T01:15:51.722899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67cfb33e04451d2ad5610473825c3103155346dd08aa987513805c3d1e31250c

Aliases

arxiv: 2007.01100 · arxiv_version: 2007.01100v1 · doi: 10.48550/arxiv.2007.01100 · pith_short_12: M7H3GPQEIUOS · pith_short_16: M7H3GPQEIUOSVVLB · pith_short_8: M7H3GPQE

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/M7H3GPQEIUOSVVLBARZYEXBRAM \
  | 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: 67cfb33e04451d2ad5610473825c3103155346dd08aa987513805c3d1e31250c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29d5cecccd64be811bbaf10a6db5c728c2aeb9f73c2fa26bbe02765aec286f3b",
    "cross_cats_sorted": [
      "cs.CY",
      "stat.AP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2020-06-24T23:21:03Z",
    "title_canon_sha256": "808bc951e5dee36332c0214820d0ec3b86634e266ceeec6862727c74a9b6ba15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.01100",
    "kind": "arxiv",
    "version": 1
  }
}