Pith Number

pith:I5RRHRCD

pith:2017:I5RRHRCDX5YGH7SYWAIG7FSF5H

not attested not anchored not stored refs pending

High-Order Retractions on Matrix Manifolds using Projected Polynomials

Evan S. Gawlik, Melvin Leok

arxiv:1705.05554 v1 · 2017-05-16 · 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{I5RRHRCDX5YGH7SYWAIG7FSF5H}

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	2026-05-18T00:44:22.441406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

476313c443bf7063fe58b0106f9645e9f3bd7ab6c6ae281340f487e3737d061e

Aliases

arxiv: 1705.05554 · arxiv_version: 1705.05554v1 · doi: 10.48550/arxiv.1705.05554 · pith_short_12: I5RRHRCDX5YG · pith_short_16: I5RRHRCDX5YGH7SY · pith_short_8: I5RRHRCD

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/I5RRHRCDX5YGH7SYWAIG7FSF5H \
  | 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: 476313c443bf7063fe58b0106f9645e9f3bd7ab6c6ae281340f487e3737d061e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6ac4bd6e4c0c4d55b4b99c957e91a2b98d9275d39e92c00e95d70c79cc4ecbe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-05-16T06:58:15Z",
    "title_canon_sha256": "9bb857a1c8e7a24e21c2b594a09fbdf0e1828ecf35df08092c429e4dead5b725"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.05554",
    "kind": "arxiv",
    "version": 1
  }
}