Pith Number

pith:UL7YHRUG

pith:2020:UL7YHRUGLS2HR4WIY7KBR5B5RZ

not attested not anchored not stored refs pending

COVID-19 SignSym: a fast adaptation of a general clinical NLP tool to identify and normalize COVID-19 signs and symptoms to OMOP common data model

Frank Manion, Hua Xu, Huy Anh Pham, Jingqi Wang, Josh Gray, Masoud Rouhizadeh, Mei Liu, Noor Abu-el-rub, Xing Song, Yaoyun Zhang, Yujia Zhou

arxiv:2007.10286 v4 · 2020-07-13 · 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{UL7YHRUGLS2HR4WIY7KBR5B5RZ}

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	2026-07-05T02:30:08.914573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2ff83c6865cb478f2c8c7d418f43d8e44112b363215cf2775849ccbe1047a9d

Aliases

arxiv: 2007.10286 · arxiv_version: 2007.10286v4 · doi: 10.48550/arxiv.2007.10286 · pith_short_12: UL7YHRUGLS2H · pith_short_16: UL7YHRUGLS2HR4WI · pith_short_8: UL7YHRUG

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/UL7YHRUGLS2HR4WIY7KBR5B5RZ \
  | 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: a2ff83c6865cb478f2c8c7d418f43d8e44112b363215cf2775849ccbe1047a9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b97ac7118919395c8fabeba247564d99074081455279731a77c83751f7fc7dcf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-07-13T15:57:26Z",
    "title_canon_sha256": "4d901019cec22c3781037c6ea1ab0454ed385e20aad815ef51bb89125ffc2009"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.10286",
    "kind": "arxiv",
    "version": 4
  }
}