Pith Number

pith:2JMOAKIL

pith:2020:2JMOAKILMJBANRU6Z2XL7GLTFC

not attested not anchored not stored refs pending

What are We Depressed about When We Talk about COVID19: Mental Health Analysis on Tweets Using Natural Language Processing

Dario Garcia-Gasulla, Irene Li, Sergio Alvarez-Napagao, Tianxiao Li, Toyotaro Suzumura, Yixin Li

arxiv:2004.10899 v3 · 2020-04-22 · cs.CL · cs.CY · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2JMOAKILMJBANRU6Z2XL7GLTFC}

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	2026-07-05T01:09:05.650600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d258e0290b624206c69eceaebf997328b8287a6aa0f1a7cb1f2024e71799cc80

Aliases

arxiv: 2004.10899 · arxiv_version: 2004.10899v3 · doi: 10.48550/arxiv.2004.10899 · pith_short_12: 2JMOAKILMJBA · pith_short_16: 2JMOAKILMJBANRU6 · pith_short_8: 2JMOAKIL

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/2JMOAKILMJBANRU6Z2XL7GLTFC \
  | 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: d258e0290b624206c69eceaebf997328b8287a6aa0f1a7cb1f2024e71799cc80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ee65a057fe8f10732157c3a2bafd16246b1949698d53eba2dc6f3779ad7041f",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-04-22T23:45:04Z",
    "title_canon_sha256": "a08da91269f420f21ddc0fef6226b09320170759e107981585dd25f9cdc60fa7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.10899",
    "kind": "arxiv",
    "version": 3
  }
}