Pith Number

pith:6EUFCCND

pith:2017:6EUFCCNDC64PEFAHULRPGWVSVI

not attested not anchored not stored refs pending

Diagonal Matrix Sequences and their Spectral Symbols

Giovanni Barbarino

arxiv:1710.00810 v1 · 2017-10-02 · 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{6EUFCCNDC64PEFAHULRPGWVSVI}

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	2026-05-18T00:33:53.711866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1285109a317b8f21407a2e2f35ab2aa3aecdc985e0b12524bbf5a41e56e4b39

Aliases

arxiv: 1710.00810 · arxiv_version: 1710.00810v1 · doi: 10.48550/arxiv.1710.00810 · pith_short_12: 6EUFCCNDC64P · pith_short_16: 6EUFCCNDC64PEFAH · pith_short_8: 6EUFCCND

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/6EUFCCNDC64PEFAHULRPGWVSVI \
  | 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: f1285109a317b8f21407a2e2f35ab2aa3aecdc985e0b12524bbf5a41e56e4b39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9098acbc661dfae65d1816bf60f133b873e0fe18541c6fa2d34535402784bf77",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-10-02T17:51:02Z",
    "title_canon_sha256": "cbabba5d74f8ae38ec978d23f0975aed42bdac1047d4a2901a7cedd6dfec989c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.00810",
    "kind": "arxiv",
    "version": 1
  }
}