Pith Number

pith:N7DCQQGY

pith:2013:N7DCQQGYRF74GPA42AIUF3CDC3

not attested not anchored not stored refs pending

Combining non-stationary prediction, optimization and mixing for data compression

Christopher Mattern

arxiv:1302.2856 v1 · 2013-02-12 · 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{N7DCQQGYRF74GPA42AIUF3CDC3}

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	2026-05-18T03:33:50.570194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fc62840d8897fc33c1cd01142ec4316edc418ddfd2b7d6cb25112f748a76abe

Aliases

arxiv: 1302.2856 · arxiv_version: 1302.2856v1 · doi: 10.48550/arxiv.1302.2856 · pith_short_12: N7DCQQGYRF74 · pith_short_16: N7DCQQGYRF74GPA4 · pith_short_8: N7DCQQGY

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/N7DCQQGYRF74GPA42AIUF3CDC3 \
  | 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: 6fc62840d8897fc33c1cd01142ec4316edc418ddfd2b7d6cb25112f748a76abe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eaf5c4e3464200e3ec93e6ffe09358f747e5a9ce19f412b2900b8bec7aa5e91b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-02-12T16:44:13Z",
    "title_canon_sha256": "7a2c4ae89f98a40af2f7944050d5f1c3a2badea70fc61153990615437b83f0c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.2856",
    "kind": "arxiv",
    "version": 1
  }
}