Pith Number

pith:XUUB4BEZ

pith:2015:XUUB4BEZOAUCCTJKNTKFEGWLJL

not attested not anchored not stored refs pending

Iterative Methods Based on Soft Thresholding of Hierarchical Tensors

Markus Bachmayr, Reinhold Schneider

arxiv:1501.07714 v1 · 2015-01-30 · 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{XUUB4BEZOAUCCTJKNTKFEGWLJL}

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	2026-05-18T02:28:14.313443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd281e04997028214d2a6cd4521acb4ae4dd71214329367b57817d7bfc483228

Aliases

arxiv: 1501.07714 · arxiv_version: 1501.07714v1 · doi: 10.48550/arxiv.1501.07714 · pith_short_12: XUUB4BEZOAUC · pith_short_16: XUUB4BEZOAUCCTJK · pith_short_8: XUUB4BEZ

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/XUUB4BEZOAUCCTJKNTKFEGWLJL \
  | 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: bd281e04997028214d2a6cd4521acb4ae4dd71214329367b57817d7bfc483228

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "baac41e8da51b059a0907fdde88c3ab6d66c75e9c0ea0fbe13edaac7d0ef63c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-01-30T09:46:23Z",
    "title_canon_sha256": "5c60cf8b9f6acac711be936d8c096ee8bb5351d909e27af9da30e8e0d08c78e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07714",
    "kind": "arxiv",
    "version": 1
  }
}