Pith Number

pith:ZBMT7SHZ

pith:2013:ZBMT7SHZDWU65K6USFKZV5Q752

not attested not anchored not stored refs pending

A unique radioisotopic label as a new concept for safeguarding and tagging of long-term stored items and waste

Dina Chernikova, Kare Axell

arxiv:1312.1985 v2 · 2013-12-06 · physics.ins-det · 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{ZBMT7SHZDWU65K6USFKZV5Q752}

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	2026-05-18T02:29:23.543857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8593fc8f91da9eeabd491559af61fee99254fc93ce72f0e9db7db7c2e295b27

Aliases

arxiv: 1312.1985 · arxiv_version: 1312.1985v2 · doi: 10.48550/arxiv.1312.1985 · pith_short_12: ZBMT7SHZDWU6 · pith_short_16: ZBMT7SHZDWU65K6U · pith_short_8: ZBMT7SHZ

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/ZBMT7SHZDWU65K6USFKZV5Q752 \
  | 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: c8593fc8f91da9eeabd491559af61fee99254fc93ce72f0e9db7db7c2e295b27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dd25e97810803776f7d050ffc3d3cf596e02174f457dcd171090bca4dcdb631",
    "cross_cats_sorted": [
      "nucl-ex"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2013-12-06T20:02:53Z",
    "title_canon_sha256": "909190031ff35fa8e187ff303ee6c6ff1ec0a6ca79dd441224d40eb701054aea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1985",
    "kind": "arxiv",
    "version": 2
  }
}