Pith Number

pith:PAPYIVWL

pith:2016:PAPYIVWLYRMEYVSRNS5MSBGLXV

not attested not anchored not stored refs pending

EMDUnifrac: Exact Linear Time Computation of the Unifrac Metric and Identification of Differentially Abundant Organisms

David Koslicki, Jason McClelland

arxiv:1611.04634 v1 · 2016-11-14 · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PAPYIVWLYRMEYVSRNS5MSBGLXV}

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	2026-05-18T00:58:50.390366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

781f8456cbc4584c56516cbac904cbbd46502672271e82959073517b4d6582f1

Aliases

arxiv: 1611.04634 · arxiv_version: 1611.04634v1 · doi: 10.48550/arxiv.1611.04634 · pith_short_12: PAPYIVWLYRME · pith_short_16: PAPYIVWLYRMEYVSR · pith_short_8: PAPYIVWL

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/PAPYIVWLYRMEYVSRNS5MSBGLXV \
  | 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: 781f8456cbc4584c56516cbac904cbbd46502672271e82959073517b4d6582f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1ab078ec130f182728fccc2011a61608d19b1a4c77ebe34413b81876b5735e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2016-11-14T21:56:31Z",
    "title_canon_sha256": "6ebca8190f8291972ac44effd8732172cd54297df4e3700836ea4a10fb2c4425"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.04634",
    "kind": "arxiv",
    "version": 1
  }
}