Pith Number

pith:4G25BNOU

pith:2016:4G25BNOUSYF6RIQSAFBF4TFSSL

not attested not anchored not stored refs pending

Structured backward error analysis of linearized structured polynomial eigenvalue problems

Froil\'an M. Dopico, Javier P\'erez, Paul Van Dooren

arxiv:1612.07011 v1 · 2016-12-21 · 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{4G25BNOUSYF6RIQSAFBF4TFSSL}

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	2026-05-18T00:54:14.857209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1b5d0b5d4960be8a21201425e4cb292c5ff5f3908834e5959baa6a35056c042

Aliases

arxiv: 1612.07011 · arxiv_version: 1612.07011v1 · doi: 10.48550/arxiv.1612.07011 · pith_short_12: 4G25BNOUSYF6 · pith_short_16: 4G25BNOUSYF6RIQS · pith_short_8: 4G25BNOU

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/4G25BNOUSYF6RIQSAFBF4TFSSL \
  | 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: e1b5d0b5d4960be8a21201425e4cb292c5ff5f3908834e5959baa6a35056c042

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2cb7cff9bd27cb7cd8d9835e6c6fbf7d0f6ade1dfdf80db2a1ddb037078929e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-12-21T08:33:55Z",
    "title_canon_sha256": "0e7e0e3dbbd2fbfe2cf84dfe54e6b2bb96eb8b49f4b07f2a1c6fa276f0552702"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.07011",
    "kind": "arxiv",
    "version": 1
  }
}