Pith Number

pith:YZC5T2W6

pith:2016:YZC5T2W6BB32KUVMHLERFMMU3K

not attested not anchored not stored refs pending

A unified approach to Fiedler-like pencils via strong block minimal bases pencils

Bradley Zykoski, Froil\'an M. Dopico, Javier P\'erez, Maribel Bueno Cachadina, Rafael Saavedra

arxiv:1611.07170 v1 · 2016-11-22 · 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{YZC5T2W6BB32KUVMHLERFMMU3K}

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	2026-05-18T00:57:24.724428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c645d9eade0877a552ac3ac912b194da8b42245538dd02b163c64aeeadd4490d

Aliases

arxiv: 1611.07170 · arxiv_version: 1611.07170v1 · doi: 10.48550/arxiv.1611.07170 · pith_short_12: YZC5T2W6BB32 · pith_short_16: YZC5T2W6BB32KUVM · pith_short_8: YZC5T2W6

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/YZC5T2W6BB32KUVMHLERFMMU3K \
  | 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: c645d9eade0877a552ac3ac912b194da8b42245538dd02b163c64aeeadd4490d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eed608f279499b9674b35f687d39ff8da8dc24b10ea12e69c8746de69a119b06",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-11-22T07:18:24Z",
    "title_canon_sha256": "1f3f663d4664acd920529aca413e0dc1e32240a55e64285db7cb882285d3b987"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.07170",
    "kind": "arxiv",
    "version": 1
  }
}