Pith Number

pith:B3A2Z5G5

pith:2012:B3A2Z5G5D2TKQUAIS7HM4RKOCF

not attested not anchored not stored refs pending

Ecological and genetic effects of introduced species on their native competitors

Dirk Metzler, Martin Hutzenthaler, Meike J. Wittmann, Wilfried Gabriel

arxiv:1208.1294 v2 · 2012-08-06 · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B3A2Z5G5D2TKQUAIS7HM4RKOCF}

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	2026-05-18T03:37:27.643087Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ec1acf4dd1ea6a8500897cece454e1158d08ba3e699e269e438998289e252d1

Aliases

arxiv: 1208.1294 · arxiv_version: 1208.1294v2 · doi: 10.48550/arxiv.1208.1294 · pith_short_12: B3A2Z5G5D2TK · pith_short_16: B3A2Z5G5D2TKQUAI · pith_short_8: B3A2Z5G5

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/B3A2Z5G5D2TKQUAIS7HM4RKOCF \
  | 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: 0ec1acf4dd1ea6a8500897cece454e1158d08ba3e699e269e438998289e252d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d90a7a5821be646065ec164d9a862c73b8a293d4de61e0a45b062063e966fd87",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2012-08-06T21:42:31Z",
    "title_canon_sha256": "2106fc7e5d5c50656b4ee04b9039053e57cf0a805bdf2e7cb6552f55b7c8d0f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1294",
    "kind": "arxiv",
    "version": 2
  }
}