Pith Number

pith:RALGOAYP

pith:2002:RALGOAYPHKGSSDKLFKX4VXRAJT

not attested not anchored not stored refs pending

An Early History of Heavy Water

Chris Waltham

arxiv:physics/0206076 v2 · 2002-06-20 · physics.hist-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{RALGOAYPHKGSSDKLFKX4VXRAJT}

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	2026-05-18T04:10:34.771360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

881667030f3a8d290d4b2aafcade204cd03661a5f6b751eb8a633ee2d4b3c1a7

Aliases

arxiv: physics/0206076 · arxiv_version: physics/0206076v2 · doi: 10.48550/arxiv.physics/0206076 · pith_short_12: RALGOAYPHKGS · pith_short_16: RALGOAYPHKGSSDKL · pith_short_8: RALGOAYP

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/RALGOAYPHKGSSDKLFKX4VXRAJT \
  | 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: 881667030f3a8d290d4b2aafcade204cd03661a5f6b751eb8a633ee2d4b3c1a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "010b5bf2ad6539816aa7e4b8eb1af474afb17ec9f22998220082e097e45a4d26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2002-06-20T19:16:58Z",
    "title_canon_sha256": "01f1b15dee8aa993a9e9a011d4a6acf8da7862bdbffee958b9c4862ed19a4edd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0206076",
    "kind": "arxiv",
    "version": 2
  }
}