Pith Number

pith:H5O5ZQIA

pith:2009:H5O5ZQIALAIKUNPEATFQSRXZ2G

not attested not anchored not stored refs pending

Transition frequency shifts with fine-structure constant variation for Fe I. Isotope shift calculations in Fe I and Fe II

D. Reimers, M. G. Kozlov, S. G. Porsev

arxiv:0903.1679 v1 · 2009-03-10 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H5O5ZQIALAIKUNPEATFQSRXZ2G}

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	2026-07-04T15:48:37.467110Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f5ddcc1005810aa35e404cb0946f9d1aaa5f172ffaa3024b2012d661901b273

Aliases

arxiv: 0903.1679 · arxiv_version: 0903.1679v1 · doi: 10.48550/arxiv.0903.1679 · pith_short_12: H5O5ZQIALAIK · pith_short_16: H5O5ZQIALAIKUNPE · pith_short_8: H5O5ZQIA

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/H5O5ZQIALAIKUNPEATFQSRXZ2G \
  | 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: 3f5ddcc1005810aa35e404cb0946f9d1aaa5f172ffaa3024b2012d661901b273

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd615a0242635dca7c0f62a64074eb7470dd902990e32b71863f06cd5142e0af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-10T03:44:11Z",
    "title_canon_sha256": "2c5d1969e5538abf57951916ece626323599e2fd618ae4a51f16d470e253d4bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1679",
    "kind": "arxiv",
    "version": 1
  }
}