Pith Number

pith:IVVFLIH7

pith:2020:IVVFLIH7ATCSV2XMXC27X6BKNY

not attested not anchored not stored refs pending

APIK: Active Physics-Informed Kriging Model with Partial Differential Equations

C. F. Jeff Wu, Chuck Zhang, Jialei Chen, Zhehui Chen

arxiv:2012.11798 v1 · 2020-12-22 · stat.ME · 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{IVVFLIH7ATCSV2XMXC27X6BKNY}

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	2026-07-05T02:01:21.255492Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

456a55a0ff04c52aeaecb8b5fbf82a6e1292a8c76a138c508742d15bfe76d3a6

Aliases

arxiv: 2012.11798 · arxiv_version: 2012.11798v1 · doi: 10.48550/arxiv.2012.11798 · pith_short_12: IVVFLIH7ATCS · pith_short_16: IVVFLIH7ATCSV2XM · pith_short_8: IVVFLIH7

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/IVVFLIH7ATCSV2XMXC27X6BKNY \
  | 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: 456a55a0ff04c52aeaecb8b5fbf82a6e1292a8c76a138c508742d15bfe76d3a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ff99430427c0abf149e5c8cbf9b6b729e7b55180720ec6a0c89c2343a0c9079",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2020-12-22T02:31:26Z",
    "title_canon_sha256": "3cfbf0f13c750aa8a5505e8fd2475698cfaca33605c2c1fe11612b7dcfdac32b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.11798",
    "kind": "arxiv",
    "version": 1
  }
}