Pith Number

pith:HKC4DIOI

pith:2012:HKC4DIOI5ERE3P3OZBKVGRS2OL

not attested not anchored not stored refs pending

Determination of the 5d6s 3D1 state lifetime and blackbody radiation clock shift in Yb

A. D. Ludlow, C. W. Oates, J. A. Sherman, K. Beloy, N. D. Lemke, N. Hinkley

arxiv:1208.0552 v1 · 2012-08-02 · physics.atom-ph

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

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	2026-05-18T03:39:06.221934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a85c1a1c8e9224dbf6ec85553465a72f9fd15abf9a412e4885cd5862249b9aa

Aliases

arxiv: 1208.0552 · arxiv_version: 1208.0552v1 · doi: 10.48550/arxiv.1208.0552 · pith_short_12: HKC4DIOI5ERE · pith_short_16: HKC4DIOI5ERE3P3O · pith_short_8: HKC4DIOI

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/HKC4DIOI5ERE3P3OZBKVGRS2OL \
  | 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: 3a85c1a1c8e9224dbf6ec85553465a72f9fd15abf9a412e4885cd5862249b9aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d5eaf686e2e74579fe5c9f6efe8a7b6a8fed0f99458a88dfa9e959e58b4ddb8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2012-08-02T17:30:46Z",
    "title_canon_sha256": "b650ffd1fc2a4fce3b75db6fa61085e6a0477d4e7e1564c9ea7fde5bd55d50a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0552",
    "kind": "arxiv",
    "version": 1
  }
}