Pith Number

pith:K5JQM3GV

pith:2019:K5JQM3GV4KSM6JWKU65ROXGECE

not attested not anchored not stored refs pending

Reconstruction of a homogeneous polynomial from its additive decompositions when identifiability fails

Edoardo Ballico

arxiv:1903.10188 v1 · 2019-03-25 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K5JQM3GV4KSM6JWKU65ROXGECE}

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	2026-05-17T23:50:30.413064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5753066cd5e2a4cf26caa7bb175cc41116d3f1a8da3f6ab3cf33ededce01bf29

Aliases

arxiv: 1903.10188 · arxiv_version: 1903.10188v1 · doi: 10.48550/arxiv.1903.10188 · pith_short_12: K5JQM3GV4KSM · pith_short_16: K5JQM3GV4KSM6JWK · pith_short_8: K5JQM3GV

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/K5JQM3GV4KSM6JWKU65ROXGECE \
  | 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: 5753066cd5e2a4cf26caa7bb175cc41116d3f1a8da3f6ab3cf33ededce01bf29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c0438d6634734c1e2fa79bd4a6b2da83c7747248091f425ea4aa71679f77981",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-03-25T09:01:53Z",
    "title_canon_sha256": "c8bb025c8c521647db4c3b274fbd7e5f44c6b3f3d889410875bc9c8a0916a4c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.10188",
    "kind": "arxiv",
    "version": 1
  }
}