Pith Number

pith:W7C7DMQS

pith:2004:W7C7DMQSY4A7HDK36IRERG4JSJ

not attested not anchored not stored refs pending

Tracing Noble Gas Radionuclides in the Environment

P. Collon, W. Kutschera, Z.-T. Lu

arxiv:nucl-ex/0402013 v1 · 2004-02-11 · 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{W7C7DMQSY4A7HDK36IRERG4JSJ}

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	2026-07-04T16:49:29.002276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7c5f1b212c701f38d5bf222489b899257c9a1427907833c681cf8619096eb56

Aliases

arxiv: nucl-ex/0402013 · arxiv_version: nucl-ex/0402013v1 · doi: 10.48550/arxiv.nucl-ex/0402013 · pith_short_12: W7C7DMQSY4A7 · pith_short_16: W7C7DMQSY4A7HDK3 · pith_short_8: W7C7DMQS

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/W7C7DMQSY4A7HDK36IRERG4JSJ \
  | 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: b7c5f1b212c701f38d5bf222489b899257c9a1427907833c681cf8619096eb56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a687c9e34c64497f41b63ac5c9bfc7a458c7297c86162e749bcf2b596e86d1a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nucl-ex",
    "submitted_at": "2004-02-11T19:32:28Z",
    "title_canon_sha256": "e6968a287d52adb31c8ad784a3dd581bb5aafc0573f9bf40b5bf14a01fc12f7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nucl-ex/0402013",
    "kind": "arxiv",
    "version": 1
  }
}