Pith Number

pith:7PXZCXOG

pith:2013:7PXZCXOGUUHLCQ5II4Y2SFRETV

not attested not anchored not stored refs pending

Wavelength calibration of the Hamilton echelle spectrograph

G. Zhao, Yu.V. Pakhomov

arxiv:1307.4634 v1 · 2013-07-17 · astro-ph.IM · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7PXZCXOGUUHLCQ5II4Y2SFRETV}

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	2026-05-18T01:48:43.450311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbef915dc6a50eb143a84731a916249d56d34a49a233bde393a550b6ebe8f80a

Aliases

arxiv: 1307.4634 · arxiv_version: 1307.4634v1 · doi: 10.48550/arxiv.1307.4634 · pith_short_12: 7PXZCXOGUUHL · pith_short_16: 7PXZCXOGUUHLCQ5I · pith_short_8: 7PXZCXOG

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/7PXZCXOGUUHLCQ5II4Y2SFRETV \
  | 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: fbef915dc6a50eb143a84731a916249d56d34a49a233bde393a550b6ebe8f80a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f236b57a5f1a022289f806b29761c27446d6e223ef0479cf4339b062525e1ede",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-07-17T13:58:26Z",
    "title_canon_sha256": "6640288d578a5017f471a2a67553217426507a143046273c85869b927ebd60d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.4634",
    "kind": "arxiv",
    "version": 1
  }
}