Pith Number

pith:DWB7YG6O

pith:2021:DWB7YG6OSNISWHV63Q5CINLFK2

not attested not anchored not stored refs pending

Machine Learning Approaches to Learn HyChem Models

Ji-Woong Park, Julian Zanders, Sili Deng, Weiqi Ji

arxiv:2104.07875 v1 · 2021-04-16 · physics.chem-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DWB7YG6OSNISWHV63Q5CINLFK2}

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	2026-07-05T07:22:11.071985Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d83fc1bce93512b1ebedc3a24356556803d6189d75f537aaf5d8caa0ac47321

Aliases

arxiv: 2104.07875 · arxiv_version: 2104.07875v1 · doi: 10.48550/arxiv.2104.07875 · pith_short_12: DWB7YG6OSNIS · pith_short_16: DWB7YG6OSNISWHV6 · pith_short_8: DWB7YG6O

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/DWB7YG6OSNISWHV63Q5CINLFK2 \
  | 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: 1d83fc1bce93512b1ebedc3a24356556803d6189d75f537aaf5d8caa0ac47321

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c393cf68fbd42e23c76a5926b77670e6cfdb7a2a3a12500a34595cec14c831d0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2021-04-16T03:49:18Z",
    "title_canon_sha256": "07b194b4017adf569030fff29a1f9c649e1dfc9d4f18eed25725dcdfb6fee2f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.07875",
    "kind": "arxiv",
    "version": 1
  }
}