Pith Number

pith:74D6JX5K

pith:2017:74D6JX5K7ROSG7E5KFARLWB5HV

not attested not anchored not stored refs pending

Stopping criterion for iterative regularization of large-scale ill-posed problems using the Picard parameter

Alexander Y. Meltzer, Eitan Levin

arxiv:1707.04200 v1 · 2017-07-13 · 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{74D6JX5K7ROSG7E5KFARLWB5HV}

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	2026-05-18T00:40:20.252962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff07e4dfaafc5d237c9d514115d83d3d4f42005c007a165013b79a56a03450e9

Aliases

arxiv: 1707.04200 · arxiv_version: 1707.04200v1 · doi: 10.48550/arxiv.1707.04200 · pith_short_12: 74D6JX5K7ROS · pith_short_16: 74D6JX5K7ROSG7E5 · pith_short_8: 74D6JX5K

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/74D6JX5K7ROSG7E5KFARLWB5HV \
  | 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: ff07e4dfaafc5d237c9d514115d83d3d4f42005c007a165013b79a56a03450e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f20998faced24754155947694c4b0b897459fde6b319b863855dc96deb9e4345",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-07-13T16:22:13Z",
    "title_canon_sha256": "7e88acb14cf937e29e56636bce396339a21701535020968546c9bfa16fc2eb4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.04200",
    "kind": "arxiv",
    "version": 1
  }
}