Pith Number

pith:6VWBFIPR

pith:2017:6VWBFIPROKR5CBF6IS7AAD5WDY

not attested not anchored not stored refs pending

Optimal number of spacers in CRISPR arrays

Alexander Martynov, Konstantin Severinov, Yaroslav Ispolatov

arxiv:1705.10424 v1 · 2017-05-30 · 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{6VWBFIPROKR5CBF6IS7AAD5WDY}

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	2026-05-18T00:27:30.414655Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f56c12a1f172a3d104be44be000fb61e0d229b791d12c539e3a8e95f5e408a9f

Aliases

arxiv: 1705.10424 · arxiv_version: 1705.10424v1 · doi: 10.48550/arxiv.1705.10424 · pith_short_12: 6VWBFIPROKR5 · pith_short_16: 6VWBFIPROKR5CBF6 · pith_short_8: 6VWBFIPR

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/6VWBFIPROKR5CBF6IS7AAD5WDY \
  | 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: f56c12a1f172a3d104be44be000fb61e0d229b791d12c539e3a8e95f5e408a9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c01d5445f3dad02b40950d15a9d28532595ac164f7e6dc98227721c32f05e39e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2017-05-30T01:27:10Z",
    "title_canon_sha256": "0383283d68df07b45bc34ced5760c03f80833bccbe7d089a780812eb6850d50b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.10424",
    "kind": "arxiv",
    "version": 1
  }
}