Pith Number

pith:OQCKHCUX

pith:2018:OQCKHCUXT4VEVXP42GV3XLXFIK

not attested not anchored not stored refs pending

Rank adaptive tensor recovery based model reduction for partial differential equations with high-dimensional random inputs

Kejun Tang, Qifeng Liao

arxiv:1812.04387 v4 · 2018-12-11 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OQCKHCUXT4VEVXP42GV3XLXFIK}

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	2026-05-17T23:54:02.269449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7404a38a979f2a4addfcd1abbbaee54299a787b6964f9cab26fd0ad7c5326c44

Aliases

arxiv: 1812.04387 · arxiv_version: 1812.04387v4 · doi: 10.48550/arxiv.1812.04387 · pith_short_12: OQCKHCUXT4VE · pith_short_16: OQCKHCUXT4VEVXP4 · pith_short_8: OQCKHCUX

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/OQCKHCUXT4VEVXP42GV3XLXFIK \
  | 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: 7404a38a979f2a4addfcd1abbbaee54299a787b6964f9cab26fd0ad7c5326c44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f31bd1290b1bd5e1553e3137162042faf5a0deb2f260dc3ec4e77ac3432812a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-12-11T13:32:45Z",
    "title_canon_sha256": "8d54a3d8f1d82ec922d09f4bb3669398633691576df2ef6b5698220fdae3485a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04387",
    "kind": "arxiv",
    "version": 4
  }
}