Pith Number

pith:22MY6UGY

pith:2019:22MY6UGYTBTTWIFVM6BJ24EPK2

not attested not anchored not stored refs pending

Predicting Human Activities from User-Generated Content

Rada Mihalcea, Steven R. Wilson

arxiv:1907.08540 v1 · 2019-07-19 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{22MY6UGYTBTTWIFVM6BJ24EPK2}

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	2026-05-17T23:40:09.492367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6998f50d898673b20b567829d708f56b53bd395bf38e5896be9decc36b893d9

Aliases

arxiv: 1907.08540 · arxiv_version: 1907.08540v1 · doi: 10.48550/arxiv.1907.08540 · pith_short_12: 22MY6UGYTBTT · pith_short_16: 22MY6UGYTBTTWIFV · pith_short_8: 22MY6UGY

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/22MY6UGYTBTTWIFVM6BJ24EPK2 \
  | 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: d6998f50d898673b20b567829d708f56b53bd395bf38e5896be9decc36b893d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "938a2f985c143a7ea62beffbc0b50b3a940f0f2934a21e175e380f30c1cf804b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-07-19T15:02:16Z",
    "title_canon_sha256": "1e5c62f26257331e21a9f5b9115236e2fe51f90c22f8cb9597a6f497af81d73e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08540",
    "kind": "arxiv",
    "version": 1
  }
}