Pith Number

pith:6I2WAKBS

pith:2019:6I2WAKBS65JRGCJZFMPXOLOWMB

not attested not anchored not stored refs pending

Analytical low-rank compression via proxy point selection

Jianlin Xia, Lexing Ying, Xin Ye

arxiv:1903.08821 v1 · 2019-03-21 · 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{6I2WAKBS65JRGCJZFMPXOLOWMB}

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	2026-05-17T23:50:43.834597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f235602832f7531309392b1f772dd6607caba02845a06015d0d5edc7c45a0115

Aliases

arxiv: 1903.08821 · arxiv_version: 1903.08821v1 · doi: 10.48550/arxiv.1903.08821 · pith_short_12: 6I2WAKBS65JR · pith_short_16: 6I2WAKBS65JRGCJZ · pith_short_8: 6I2WAKBS

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/6I2WAKBS65JRGCJZFMPXOLOWMB \
  | 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: f235602832f7531309392b1f772dd6607caba02845a06015d0d5edc7c45a0115

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "426b27e478337a078c0f074c042df2d3bade50f10fb361f414fa51b2b61b15dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-03-21T03:28:17Z",
    "title_canon_sha256": "05541a2f8471ed3900f9f5fbd694639a5680d1d0de79e2eca2a81a4989a651ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08821",
    "kind": "arxiv",
    "version": 1
  }
}