Pith Number

pith:2P4S4E63

pith:2019:2P4S4E63TNIRO5AZMWKM6RWHTB

not attested not anchored not stored refs pending

META$^\mathbf{2}$: Memory-efficient taxonomic classification and abundance estimation for metagenomics with deep learning

Andreas Georgiou, Gunnar R\"atsch, Harun Mustafa, Vincent Fortuin

arxiv:1909.13146 v2 · 2019-09-28 · q-bio.GN · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2P4S4E63TNIRO5AZMWKM6RWHTB}

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	2026-07-05T00:39:14.202053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3f92e13db9b511774196594cf46c7986bd46811dcc5dcdd80c6fbb2b0e25ffd

Aliases

arxiv: 1909.13146 · arxiv_version: 1909.13146v2 · doi: 10.48550/arxiv.1909.13146 · pith_short_12: 2P4S4E63TNIR · pith_short_16: 2P4S4E63TNIRO5AZ · pith_short_8: 2P4S4E63

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/2P4S4E63TNIRO5AZMWKM6RWHTB \
  | 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: d3f92e13db9b511774196594cf46c7986bd46811dcc5dcdd80c6fbb2b0e25ffd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e03a69add8f9970faecc0e241bca62467883e70e8145dc20533f97b0939f36da",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.GN",
    "submitted_at": "2019-09-28T20:30:40Z",
    "title_canon_sha256": "e97ed5352843af88363df7de44e96f4f00e48a02583c1979e0e42cc774ced8fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.13146",
    "kind": "arxiv",
    "version": 2
  }
}