Pith Number

pith:GVU7KHJ6

pith:2012:GVU7KHJ6A32OBRUB67JUGOW2OI

not attested not anchored not stored refs pending

Relative Information Loss in the PCA

Bernhard C. Geiger, Gernot Kubin

arxiv:1204.0429 v2 · 2012-04-02 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GVU7KHJ6A32OBRUB67JUGOW2OI}

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	2026-05-18T03:36:25.238744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3569f51d3e06f4e0c681f7d3433ada723b622f9e6c1fddfde4bf72824e42fd97

Aliases

arxiv: 1204.0429 · arxiv_version: 1204.0429v2 · doi: 10.48550/arxiv.1204.0429 · pith_short_12: GVU7KHJ6A32O · pith_short_16: GVU7KHJ6A32OBRUB · pith_short_8: GVU7KHJ6

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/GVU7KHJ6A32OBRUB67JUGOW2OI \
  | 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: 3569f51d3e06f4e0c681f7d3433ada723b622f9e6c1fddfde4bf72824e42fd97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce05ccf502d462fbdde41c74c6e97e44f2fa89fb6071a3ad559832acfbb60151",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-04-02T15:11:54Z",
    "title_canon_sha256": "fb5693214c6f570da6535580d66fcbdf48157774b71752335629c0a220ae829a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0429",
    "kind": "arxiv",
    "version": 2
  }
}