Pith Number

pith:VPFZREW3

pith:2013:VPFZREW3WIWAZN2DRTNBAK3QK6

not attested not anchored not stored refs pending

Adaptive Near-Optimal Rank Tensor Approximation for High-Dimensional Operator Equations

2) ((1) IGPM, (2) AICES, Markus Bachmayr (1), RWTH Aachen, RWTH Aachen), Wolfgang Dahmen (1

arxiv:1304.7796 v2 · 2013-04-29 · 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{VPFZREW3WIWAZN2DRTNBAK3QK6}

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	2026-05-18T02:56:21.302531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abcb9892dbb22c0cb7438cda102b705790b1effde7515348edd2392c0944a3b4

Aliases

arxiv: 1304.7796 · arxiv_version: 1304.7796v2 · doi: 10.48550/arxiv.1304.7796 · pith_short_12: VPFZREW3WIWA · pith_short_16: VPFZREW3WIWAZN2D · pith_short_8: VPFZREW3

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/VPFZREW3WIWAZN2DRTNBAK3QK6 \
  | 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: abcb9892dbb22c0cb7438cda102b705790b1effde7515348edd2392c0944a3b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e2ff8d12c69ea8a70b83c46b20bccc80802f290641a95b5321e3d743fa543e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-04-29T20:34:05Z",
    "title_canon_sha256": "0f37598f0952ddf90dc861cf76c567db232da913ddb73d60fcee85f5b664441d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7796",
    "kind": "arxiv",
    "version": 2
  }
}