Pith Number

pith:DIU37RMR

pith:2021:DIU37RMRFYC5SRB6QNOPUGTRA7

not attested not anchored not stored refs pending

Topology Applied to Machine Learning: From Global to Local

Henry Adams, Michael Moy

arxiv:2103.05796 v2 · 2021-03-10 · math.AT · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DIU37RMRFYC5SRB6QNOPUGTRA7}

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	2026-07-05T02:34:11.994538Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a29bfc5912e05d9443e835cfa1a7107c817d562f2253a3a3cce8dea9d54b8b9

Aliases

arxiv: 2103.05796 · arxiv_version: 2103.05796v2 · doi: 10.48550/arxiv.2103.05796 · pith_short_12: DIU37RMRFYC5 · pith_short_16: DIU37RMRFYC5SRB6 · pith_short_8: DIU37RMR

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/DIU37RMRFYC5SRB6QNOPUGTRA7 \
  | 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: 1a29bfc5912e05d9443e835cfa1a7107c817d562f2253a3a3cce8dea9d54b8b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f54eaa0705b5ee56f03afb539c5bbe07f2ffd97439c33f7f7634c4b1915e0fe",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2021-03-10T00:36:28Z",
    "title_canon_sha256": "d5e5f0158d6a488e03d0b5fcef94004d3a1a3f75efb662791e8fd1cb2f591eab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.05796",
    "kind": "arxiv",
    "version": 2
  }
}