Pith Number

pith:4UAMCYF7

pith:2015:4UAMCYF7PIIJFICAZGENB26UQL

not attested not anchored not stored refs pending

Absolute frequency references at 1529 nm and 1560 nm using modulation transfer spectroscopy

Krzysztof T. Kaczmarek, Morgan W. Mitchell, Silvana Palacios \'Alvarez, Simon Coop, Thomas Vanderbruggen, Y. Natali Martinez de Escobar

arxiv:1509.06485 v1 · 2015-09-22 · physics.atom-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{4UAMCYF7PIIJFICAZGENB26UQL}

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	2026-05-18T01:32:20.167421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e500c160bf7a1092a040c988d0ebd482ee39c3919cad699afe8e2c740580c63d

Aliases

arxiv: 1509.06485 · arxiv_version: 1509.06485v1 · doi: 10.48550/arxiv.1509.06485 · pith_short_12: 4UAMCYF7PIIJ · pith_short_16: 4UAMCYF7PIIJFICA · pith_short_8: 4UAMCYF7

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/4UAMCYF7PIIJFICAZGENB26UQL \
  | 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: e500c160bf7a1092a040c988d0ebd482ee39c3919cad699afe8e2c740580c63d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a67d006c1aa168f649a9ce5014852ced0644d51d7d2958007e323906598224e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2015-09-22T07:30:38Z",
    "title_canon_sha256": "055f4a44c64a85354435fbcd8784bad712d0c5ee34f9ded4a9c5c192554079e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.06485",
    "kind": "arxiv",
    "version": 1
  }
}