Pith Number

pith:QQXVHO4W

pith:2013:QQXVHO4WOTHJEP7VPYTQFSM4GE

not attested not anchored not stored refs pending

The entropic lock and key of the histone code

Bradley M. Dickson, Dmitri B. Kireev

arxiv:1306.3421 v4 · 2013-06-14 · q-bio.BM · cond-mat.soft · physics.bio-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQXVHO4WOTHJEP7VPYTQFSM4GE}

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	2026-05-18T03:05:36.258539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

842f53bb9674ce923ff57e2702c99c311e6b9e832335cc48146af7511659e9ae

Aliases

arxiv: 1306.3421 · arxiv_version: 1306.3421v4 · doi: 10.48550/arxiv.1306.3421 · pith_short_12: QQXVHO4WOTHJ · pith_short_16: QQXVHO4WOTHJEP7V · pith_short_8: QQXVHO4W

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/QQXVHO4WOTHJEP7VPYTQFSM4GE \
  | 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: 842f53bb9674ce923ff57e2702c99c311e6b9e832335cc48146af7511659e9ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b74ae38091cea673aeae1de88af6542af02ac3cc516a508a1eff9b2e2a6b0aa",
    "cross_cats_sorted": [
      "cond-mat.soft",
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.BM",
    "submitted_at": "2013-06-14T15:09:55Z",
    "title_canon_sha256": "c4b9c8ae8f9de9d736c0368efb2ad83645bf5c66e9f54d6225f92c44651be737"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.3421",
    "kind": "arxiv",
    "version": 4
  }
}