Pith Number

pith:VKP5M3VQ

pith:2008:VKP5M3VQMQJUW5P2E5BDKS2T64

not attested not anchored not stored refs pending

Evaluating Intraspecific Variation and Interspecific Diversity: comparing humans and fish species

Bradly Alicea

arxiv:0807.3350 v2 · 2008-07-22 · q-bio.PE · 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{VKP5M3VQMQJUW5P2E5BDKS2T64}

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	2026-05-18T03:06:04.024744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa9fd66eb064134b75fa2742354b53f7055649f5970595f585c0725d265022b4

Aliases

arxiv: 0807.3350 · arxiv_version: 0807.3350v2 · doi: 10.48550/arxiv.0807.3350 · pith_short_12: VKP5M3VQMQJU · pith_short_16: VKP5M3VQMQJUW5P2 · pith_short_8: VKP5M3VQ

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/VKP5M3VQMQJUW5P2E5BDKS2T64 \
  | 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: aa9fd66eb064134b75fa2742354b53f7055649f5970595f585c0725d265022b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26c68ee9f33a996964b45fb2f1382bc8de7a63063536e6bc68e2937703019f29",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2008-07-22T01:29:45Z",
    "title_canon_sha256": "b12380b320e246bd7f74332f2dc5d9923e527df3a7dde9aadd88084c4e87701c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.3350",
    "kind": "arxiv",
    "version": 2
  }
}