Pith Number

pith:RJACVPSD

pith:2012:RJACVPSDRW4DLCSXU4HTFEVD4S

not attested not anchored not stored refs pending

First foot prints of chemistry on the shore of the Island of Superheavy Elements

Robert Eichler

arxiv:1212.4292 v1 · 2012-12-18 · nucl-ex · physics.chem-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RJACVPSDRW4DLCSXU4HTFEVD4S}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:52:31.082041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a402abe438db8358a57a70f3292a3e4a40aecef35331dd9a64b08baa860afa9

Aliases

arxiv: 1212.4292 · arxiv_version: 1212.4292v1 · doi: 10.48550/arxiv.1212.4292 · pith_short_12: RJACVPSDRW4D · pith_short_16: RJACVPSDRW4DLCSX · pith_short_8: RJACVPSD

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/RJACVPSDRW4DLCSXU4HTFEVD4S \
  | 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: 8a402abe438db8358a57a70f3292a3e4a40aecef35331dd9a64b08baa860afa9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0fa368006f417419b606f57c1e43d35e7b897e0d4282d07a7bc68e458e56d9b",
    "cross_cats_sorted": [
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-ex",
    "submitted_at": "2012-12-18T10:22:28Z",
    "title_canon_sha256": "c0b07debb52b3dafabe18fa2a5731648dfaf1350481db2648c44dfb24c78f2f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.4292",
    "kind": "arxiv",
    "version": 1
  }
}