Pith Number

pith:FMH4UJHS

pith:2018:FMH4UJHS43N277XYRFFE6B6N46

not attested not anchored not stored refs pending

Krylov projection methods for linear Hamiltonian systems

Elena Celledoni, Lu Li

arxiv:1808.06674 v1 · 2018-08-20 · 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{FMH4UJHS43N277XYRFFE6B6N46}

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	2026-05-18T00:07:39.460909Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b0fca24f2e6dbaffef8894a4f07cde7b51723e087e39bf35f6094e60cde4fe2

Aliases

arxiv: 1808.06674 · arxiv_version: 1808.06674v1 · doi: 10.48550/arxiv.1808.06674 · pith_short_12: FMH4UJHS43N2 · pith_short_16: FMH4UJHS43N277XY · pith_short_8: FMH4UJHS

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/FMH4UJHS43N277XYRFFE6B6N46 \
  | 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: 2b0fca24f2e6dbaffef8894a4f07cde7b51723e087e39bf35f6094e60cde4fe2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee04fb5b56c8546b1e12d5d14b0b74f42a9b2c881413b1a24acf9be567eac403",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-08-20T19:57:04Z",
    "title_canon_sha256": "4b5612d387f3278f33a652ea3a8d88296672767516e563591020a3695fa6b727"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.06674",
    "kind": "arxiv",
    "version": 1
  }
}