Pith Number

pith:VYNM4DUD

pith:2024:VYNM4DUDNUM7X4NHTN3MS4VHAO

not attested not anchored not stored refs pending

Robust support for semi-automated reductions of Keck/NIRSPEC data using PypeIt

Adolfo S. Carvalho, Debora Pelliccia, Feige Wang, Frederick B. Davies, Greg Doppmann, Joseph Hennawi, J. Xavier Prochaska, Kyle B. Westfall, Max Brodheim, Ryan Cooke

arxiv:2410.19991 v1 · 2024-10-25 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VYNM4DUDNUM7X4NHTN3MS4VHAO}

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	2026-07-05T09:26:36.941938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae1ace0e836d19fbf1a79b76c972a703bd7abc9c5cfc1631c26e97dc5a637fa0

Aliases

arxiv: 2410.19991 · arxiv_version: 2410.19991v1 · doi: 10.48550/arxiv.2410.19991 · pith_short_12: VYNM4DUDNUM7 · pith_short_16: VYNM4DUDNUM7X4NH · pith_short_8: VYNM4DUD

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/VYNM4DUDNUM7X4NHTN3MS4VHAO \
  | 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: ae1ace0e836d19fbf1a79b76c972a703bd7abc9c5cfc1631c26e97dc5a637fa0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9f2faf76bc17ba7eb712024bc677b5d5252e9ee51eb8c1879aaf80e8b815f3a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2024-10-25T22:24:11Z",
    "title_canon_sha256": "75c1b5092792b6ce4ca65b8b592794d64a6ce16f2d43c2b85a5eac5ae15d12cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2410.19991",
    "kind": "arxiv",
    "version": 1
  }
}