Pith Number

pith:FL45IHT4

pith:2014:FL45IHT4B7RLTEVVR4QQAUPVUE

not attested not anchored not stored refs pending

Projection methods in quantum information science

Chi-Kwong Li, Diane Pelejo, Dmitriy Drusvyatskiy, Henry Wolkowicz, Yuen-Lam Cheung

arxiv:1407.6604 v1 · 2014-07-24 · 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{FL45IHT4B7RLTEVVR4QQAUPVUE}

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	2026-05-18T02:46:38.366107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2af9d41e7c0fe2b992b58f210051f5a111062d83174d431881b8092a11b8f53a

Aliases

arxiv: 1407.6604 · arxiv_version: 1407.6604v1 · doi: 10.48550/arxiv.1407.6604 · pith_short_12: FL45IHT4B7RL · pith_short_16: FL45IHT4B7RLTEVV · pith_short_8: FL45IHT4

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/FL45IHT4B7RLTEVVR4QQAUPVUE \
  | 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: 2af9d41e7c0fe2b992b58f210051f5a111062d83174d431881b8092a11b8f53a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b367959bd1b17cdc5e796cef3d70d70cb9683a1924317a04a5f43c3217606193",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-07-24T14:50:19Z",
    "title_canon_sha256": "973e8d4a17bf7202098458b1fc3c2656476bab8cec0fa473b507d3dfed2aff55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.6604",
    "kind": "arxiv",
    "version": 1
  }
}