Pith Number

pith:QHMB7HQF

pith:2018:QHMB7HQF6L6RKU3PKJSBCKTNSE

not attested not anchored not stored refs pending

QTT-isogeometric solver in two dimensions

I. Oseledets, I. Tsybulin, L. Markeeva

arxiv:1802.02839 v1 · 2018-02-08 · 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{QHMB7HQF6L6RKU3PKJSBCKTNSE}

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	2026-05-18T00:24:02.941555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81d81f9e05f2fd15536f5264112a6d912512ab33c0873952961401b25ade3efa

Aliases

arxiv: 1802.02839 · arxiv_version: 1802.02839v1 · doi: 10.48550/arxiv.1802.02839 · pith_short_12: QHMB7HQF6L6R · pith_short_16: QHMB7HQF6L6RKU3P · pith_short_8: QHMB7HQF

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/QHMB7HQF6L6RKU3PKJSBCKTNSE \
  | 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: 81d81f9e05f2fd15536f5264112a6d912512ab33c0873952961401b25ade3efa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b53535c1b641b54f0009a9be71bed3b3db2a9953b31324273ff2ca33004144e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-02-08T13:11:57Z",
    "title_canon_sha256": "98ce0d740b7f30a3f258446ca0910e43a819d1ae8d85a8a5870c0e20cb912796"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02839",
    "kind": "arxiv",
    "version": 1
  }
}