Pith Number

pith:TMFKDW3Y

pith:2020:TMFKDW3YZEFDAL7G6X4N5VZCUX

not attested not anchored not stored refs pending

Towards real-time population estimates: introducing Twitter daily estimates of residents and non-residents at the county level

Yago Martin, Yue Ge, Zhenlong Li

arxiv:2011.13482 v1 · 2020-11-26 · cs.SI · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TMFKDW3YZEFDAL7G6X4N5VZCUX}

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	2026-07-05T01:54:54.695880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b0aa1db78c90a302fe6f5f8ded722a5e7b75ef9cee54d1bdc466739b4d2cba5

Aliases

arxiv: 2011.13482 · arxiv_version: 2011.13482v1 · doi: 10.48550/arxiv.2011.13482 · pith_short_12: TMFKDW3YZEFD · pith_short_16: TMFKDW3YZEFDAL7G · pith_short_8: TMFKDW3Y

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/TMFKDW3YZEFDAL7G6X4N5VZCUX \
  | 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: 9b0aa1db78c90a302fe6f5f8ded722a5e7b75ef9cee54d1bdc466739b4d2cba5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94a7ae8d04daab15e39ccba50ed4dce0ece97947e568f83d6dd95190eca2c593",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2020-11-26T22:01:07Z",
    "title_canon_sha256": "77db58d7fc45c92422961aee516fecc1932520cecb28633c1ef0309077b36443"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.13482",
    "kind": "arxiv",
    "version": 1
  }
}