Pith Number

pith:PRCROEMJ

pith:2014:PRCROEMJZJRFUIMGTLZ55YP4N2

not attested not anchored not stored refs pending

Tridiagonal Matrices and Boundary Conditions

David K. Hammond, J. J. P. Veerman

arxiv:1408.1145 v1 · 2014-08-05 · math.CA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PRCROEMJZJRFUIMGTLZ55YP4N2}

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	2026-05-18T02:45:48.125641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c45171189ca625a21869af3dee1fc6e9c0e908ed3e806e04e7cae5727427948

Aliases

arxiv: 1408.1145 · arxiv_version: 1408.1145v1 · doi: 10.48550/arxiv.1408.1145 · pith_short_12: PRCROEMJZJRF · pith_short_16: PRCROEMJZJRFUIMG · pith_short_8: PRCROEMJ

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/PRCROEMJZJRFUIMGTLZ55YP4N2 \
  | 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: 7c45171189ca625a21869af3dee1fc6e9c0e908ed3e806e04e7cae5727427948

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23adb5e1ab9fc42344c56546edfdf20ade441c2284ff5ce306409c54ea70fce0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2014-08-05T23:45:20Z",
    "title_canon_sha256": "ef1e88039eb50ab9556530010e7409518d7869c77027b5e0b9356d3b5ed1f1ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.1145",
    "kind": "arxiv",
    "version": 1
  }
}