Pith Number

pith:DZG3BC5Z

pith:2018:DZG3BC5ZAQASK6WMVN3TA56TZA

not attested not anchored not stored refs pending

On the choice of metric in gradient-based theories of brain function

Jean-Pascal Pfister, Johanni Brea, Simone Carlo Surace, Wulfram Gerstner

arxiv:1805.11851 v3 · 2018-05-30 · q-bio.NC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DZG3BC5ZAQASK6WMVN3TA56TZA}

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	2026-05-17T23:57:46.846217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e4db08bb90401257accab773077d3c811f66df3890eb81494a25ab3ce6c3c73

Aliases

arxiv: 1805.11851 · arxiv_version: 1805.11851v3 · doi: 10.48550/arxiv.1805.11851 · pith_short_12: DZG3BC5ZAQAS · pith_short_16: DZG3BC5ZAQASK6WM · pith_short_8: DZG3BC5Z

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/DZG3BC5ZAQASK6WMVN3TA56TZA \
  | 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: 1e4db08bb90401257accab773077d3c811f66df3890eb81494a25ab3ce6c3c73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02d407bee837e63ef00de1a43485605b5a7ddbbaf3e3212e675ce279c386e0b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2018-05-30T08:21:41Z",
    "title_canon_sha256": "d86a9b8ffe2934aba53eb8de41ece8aef29056ebe7271e7b694b12e5a7fd6f97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.11851",
    "kind": "arxiv",
    "version": 3
  }
}