Pith Number

pith:NGFA73LD

pith:2013:NGFA73LDY5XZBPFQHO7IMLEOH3

not attested not anchored not stored refs pending

TreeOTU: Operational Taxonomic Unit Classification Based on Phylogenetic Trees

Dongying Wu, Jonathan A. Eisen, Ladan Doroud

arxiv:1308.6333 v1 · 2013-08-28 · q-bio.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NGFA73LDY5XZBPFQHO7IMLEOH3}

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	2026-05-18T03:14:40.235109Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

698a0fed63c76f90bcb03bbe862c8e3eeee9328bf08874e5fd84e609d516faae

Aliases

arxiv: 1308.6333 · arxiv_version: 1308.6333v1 · doi: 10.48550/arxiv.1308.6333 · pith_short_12: NGFA73LDY5XZ · pith_short_16: NGFA73LDY5XZBPFQ · pith_short_8: NGFA73LD

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/NGFA73LDY5XZBPFQHO7IMLEOH3 \
  | 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: 698a0fed63c76f90bcb03bbe862c8e3eeee9328bf08874e5fd84e609d516faae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db9783a8d8d3ed4a79be503974e9dd9effa14a1a99a049852bb5767fcd29a189",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "q-bio.GN",
    "submitted_at": "2013-08-28T23:40:21Z",
    "title_canon_sha256": "0f5437daff919ed21ad65adf8a6f32c35db0f292bb723aa4e90db453e783c45c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.6333",
    "kind": "arxiv",
    "version": 1
  }
}