Pith Number

pith:NTGWNDG5

pith:2016:NTGWNDG526Z5SDGOSBF36E4FXZ

not attested not anchored not stored refs pending

Efficient Implementation of a Higher-Order Language with Built-In AD

Barak A. Pearlmutter, Jeffrey Mark Siskind

arxiv:1611.03416 v1 · 2016-11-10 · cs.PL · cs.MS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NTGWNDG526Z5SDGOSBF36E4FXZ}

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	2026-05-18T00:59:35.365889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ccd668cddd7b3d90cce904bbf1385be6580b96d9aa0a30cdba8d2ad13f2108d

Aliases

arxiv: 1611.03416 · arxiv_version: 1611.03416v1 · doi: 10.48550/arxiv.1611.03416 · pith_short_12: NTGWNDG526Z5 · pith_short_16: NTGWNDG526Z5SDGO · pith_short_8: NTGWNDG5

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/NTGWNDG526Z5SDGOSBF36E4FXZ \
  | 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: 6ccd668cddd7b3d90cce904bbf1385be6580b96d9aa0a30cdba8d2ad13f2108d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a462dc41e1a8fa99dec665c51ee332209a63de980bc7dc79092ab1736610f1b",
    "cross_cats_sorted": [
      "cs.MS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2016-11-10T17:40:53Z",
    "title_canon_sha256": "2e1db198d64461ebdc4d459033d199e5d37261a21244b007203e2915c9a9c442"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.03416",
    "kind": "arxiv",
    "version": 1
  }
}