Pith Number

pith:RKB2D2TT

pith:2015:RKB2D2TTL3CVIL7QOLUWCEFCO3

not attested not anchored not stored refs pending

Block Sparse Memory Improved Proportionate Affine Projection Sign Algorithm

Jianming Liu, Steven L. Grant

arxiv:1510.05073 v1 · 2015-10-17 · cs.SY · cs.SD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RKB2D2TTL3CVIL7QOLUWCEFCO3}

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	2026-05-18T01:29:53.259104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a83a1ea735ec5542ff072e96110a276de38187e9de37f8695614e1495d40acd

Aliases

arxiv: 1510.05073 · arxiv_version: 1510.05073v1 · doi: 10.48550/arxiv.1510.05073 · pith_short_12: RKB2D2TTL3CV · pith_short_16: RKB2D2TTL3CVIL7Q · pith_short_8: RKB2D2TT

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/RKB2D2TTL3CVIL7QOLUWCEFCO3 \
  | 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: 8a83a1ea735ec5542ff072e96110a276de38187e9de37f8695614e1495d40acd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d68efcd0c3eab4ad8ae9d2f246b63daba979328f728ec46c40729b6e721a68e2",
    "cross_cats_sorted": [
      "cs.SD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2015-10-17T05:51:01Z",
    "title_canon_sha256": "ff256cf6bdf603e16c19bcf28858557132ca5a4760d82f515c03fd3944a461a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.05073",
    "kind": "arxiv",
    "version": 1
  }
}