Pith Number

pith:27V53XIP

pith:2014:27V53XIP6D4JSHRBWKAROW2IEH

not attested not anchored not stored refs pending

New x-ray measurements in Helium-like Atoms increase discrepancy between experiment and theoretical QED

Albert Henins, Andrew T. Payne, Christopher T. Chantler, Endre Takacs, John D. Gillaspy, Justin A. Kimpton, Lawrence T. Hudson, Lucas F. Smale

arxiv:1405.3737 v2 · 2014-05-15 · physics.atom-ph · hep-ph · quant-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	2026-05-18T02:30:01.102710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7ebdddd0ff0f8991e21b281175b4821dd3a08dd2f24dab4c67078da626febc3

Aliases

arxiv: 1405.3737 · arxiv_version: 1405.3737v2 · doi: 10.48550/arxiv.1405.3737 · pith_short_12: 27V53XIP6D4J · pith_short_16: 27V53XIP6D4JSHRB · pith_short_8: 27V53XIP

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/27V53XIP6D4JSHRBWKAROW2IEH \
  | 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: d7ebdddd0ff0f8991e21b281175b4821dd3a08dd2f24dab4c67078da626febc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "782a6010ebd2c7f8f62b58b416f56db7392528c15d09b80049461d4edd92f3e6",
    "cross_cats_sorted": [
      "hep-ph",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2014-05-15T04:07:27Z",
    "title_canon_sha256": "7d162e099cb27da0081294df90f933af6e465c611ddb05c803ba5fb1aca641cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.3737",
    "kind": "arxiv",
    "version": 2
  }
}