Pith Number

pith:5N6ADMBW

pith:2010:5N6ADMBWTHERORAZLJJXUKSHUW

not attested not anchored not stored refs pending

Unique perfect phylogeny is NP-hard

Juraj Stacho, Michel Habib

arxiv:1011.5737 v1 · 2010-11-26 · q-bio.PE · cs.CC

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

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	2026-05-18T04:34:38.551906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb7c01b03699c91744195a537a2a47a583ecda140c54c9a9c86adb23e279a4fb

Aliases

arxiv: 1011.5737 · arxiv_version: 1011.5737v1 · doi: 10.48550/arxiv.1011.5737 · pith_short_12: 5N6ADMBWTHER · pith_short_16: 5N6ADMBWTHERORAZ · pith_short_8: 5N6ADMBW

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/5N6ADMBWTHERORAZLJJXUKSHUW \
  | 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: eb7c01b03699c91744195a537a2a47a583ecda140c54c9a9c86adb23e279a4fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35473a8c92c442441415b73d1da692db28dfdc5e07026fa619a5e6891c3ddec7",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2010-11-26T09:36:03Z",
    "title_canon_sha256": "9fee705b53dfa044b1a1af94bfe733ba8e8bf21aa2f61f79730146e09defc2f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.5737",
    "kind": "arxiv",
    "version": 1
  }
}