Pith Number

pith:DDPUADLL

pith:2013:DDPUADLL7XRNED2CCR5MC6ZNZJ

not attested not anchored not stored refs pending

The merging of the islands of inversion at N=20 and N=28

Alfredo Poves, Etienne Caurier, Frederic Nowacki

arxiv:1309.6955 v2 · 2013-09-26 · nucl-th · nucl-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDPUADLL7XRNED2CCR5MC6ZNZJ}

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	2026-05-18T01:47:26.117292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18df400d6bfde2d20f42147ac17b2dca5b30c53e588f95a5ed63ad42a0ddd885

Aliases

arxiv: 1309.6955 · arxiv_version: 1309.6955v2 · doi: 10.48550/arxiv.1309.6955 · pith_short_12: DDPUADLL7XRN · pith_short_16: DDPUADLL7XRNED2C · pith_short_8: DDPUADLL

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/DDPUADLL7XRNED2CCR5MC6ZNZJ \
  | 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: 18df400d6bfde2d20f42147ac17b2dca5b30c53e588f95a5ed63ad42a0ddd885

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "373c22d14e2f85fd907ab3f3e1657b6102d5920fab3665e5941b9f2fb11ab9c9",
    "cross_cats_sorted": [
      "nucl-ex"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2013-09-26T16:15:29Z",
    "title_canon_sha256": "dbe7b957de08a958c5e955df31a40bcad3e5cafc0ffa793eacd61b6c470d3e8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6955",
    "kind": "arxiv",
    "version": 2
  }
}