Pith Number

pith:S7OVYMLF

pith:2015:S7OVYMLFSACB7FF7QPN3NF3DHB

not attested not anchored not stored refs pending

The Entropy Gain of Linear Time-Invariant Filters and Some of its Implications

Jan {\O}stergaard, Mat\'ias M\"uller, Milan S. Derpich

arxiv:1512.03655 v1 · 2015-12-11 · 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{S7OVYMLFSACB7FF7QPN3NF3DHB}

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	2026-05-18T01:24:31.745368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97dd5c316590041f94bf83dbb69763384f416cd8e30ef0d76eb36a4b9b15d625

Aliases

arxiv: 1512.03655 · arxiv_version: 1512.03655v1 · doi: 10.48550/arxiv.1512.03655 · pith_short_12: S7OVYMLFSACB · pith_short_16: S7OVYMLFSACB7FF7 · pith_short_8: S7OVYMLF

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/S7OVYMLFSACB7FF7QPN3NF3DHB \
  | 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: 97dd5c316590041f94bf83dbb69763384f416cd8e30ef0d76eb36a4b9b15d625

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2df39620030b2982e0243efeea5cc39d47206e0d4b9395b0ebfd461added4421",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-12-11T14:25:31Z",
    "title_canon_sha256": "fd3edb04cbca579d7b81029349afc3fd38904545ca368857020de5be8916aec2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.03655",
    "kind": "arxiv",
    "version": 1
  }
}