Pith Number

pith:4RBJ4BVM

pith:2015:4RBJ4BVMIWDMQFP55YL37AJFVL

not attested not anchored not stored refs pending

Computational Modeling of Spectral Data Fitting with Nonlinear Distortions

Jack Xin, Wensong Wu, Yuanchang Sun

arxiv:1501.01218 v1 · 2015-01-06 · 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{4RBJ4BVMIWDMQFP55YL37AJFVL}

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	2026-05-18T02:30:00.080409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4429e06ac4586c815fdee17bf8125aae43e6867e0a1e03f1f115c666b1f99ed

Aliases

arxiv: 1501.01218 · arxiv_version: 1501.01218v1 · doi: 10.48550/arxiv.1501.01218 · pith_short_12: 4RBJ4BVMIWDM · pith_short_16: 4RBJ4BVMIWDMQFP5 · pith_short_8: 4RBJ4BVM

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/4RBJ4BVMIWDMQFP55YL37AJFVL \
  | 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: e4429e06ac4586c815fdee17bf8125aae43e6867e0a1e03f1f115c666b1f99ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8c162d0682fdd4fceb6e3a0bf72bd49793d1141f18c586ebf5a529479fe6798",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-01-06T16:14:22Z",
    "title_canon_sha256": "2d8757c7750012453a0115a69f829c64366bfe28e7e6aef5e3b21d28477912f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01218",
    "kind": "arxiv",
    "version": 1
  }
}