Pith Number

pith:3TKR2CZ7

pith:2019:3TKR2CZ7XYODRVCGGXMU3ZYBGI

not attested not anchored not stored refs pending

Biologically inspired alternatives to backpropagation through time for learning in recurrent neural nets

Darjan Salaj, Elias Hajek, Franz Scherr, Guillaume Bellec, Robert Legenstein, Wolfgang Maass

arxiv:1901.09049 v2 · 2019-01-25 · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3TKR2CZ7XYODRVCGGXMU3ZYBGI}

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	2026-05-17T23:53:02.497906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcd51d0b3fbe1c38d44635d94de701320b8ee16abe50ca1f1961b5c779d3e29f

Aliases

arxiv: 1901.09049 · arxiv_version: 1901.09049v2 · doi: 10.48550/arxiv.1901.09049 · pith_short_12: 3TKR2CZ7XYOD · pith_short_16: 3TKR2CZ7XYODRVCG · pith_short_8: 3TKR2CZ7

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/3TKR2CZ7XYODRVCGGXMU3ZYBGI \
  | 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: dcd51d0b3fbe1c38d44635d94de701320b8ee16abe50ca1f1961b5c779d3e29f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f4965ba3dd2ec3c8661d67820284f29074ac3e64414782695343bcf29264a54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2019-01-25T19:07:36Z",
    "title_canon_sha256": "bc8fe54a1429151680680ed020e0735db0306e78da2becf92c3ab5ffa69bcd08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.09049",
    "kind": "arxiv",
    "version": 2
  }
}