Pith Number

pith:2NM2EBKU

pith:2019:2NM2EBKUBYMOVIRFCEUNLLAR64

not attested not anchored not stored refs pending

Deriving Iodine-free spectra for high-resolution echelle spectrographs

James S. Jenkins, Mat\'ias R. D\'iaz, R. Paul Butler, Stephen A. Shectman

arxiv:1903.11718 v1 · 2019-03-27 · astro-ph.IM · astro-ph.EP · 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{2NM2EBKUBYMOVIRFCEUNLLAR64}

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	2026-05-17T23:46:47.068410Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d359a205540e18eaa2251128d5ac11f709ccc74f8d82b8a1ccbe0a6ff663f4a6

Aliases

arxiv: 1903.11718 · arxiv_version: 1903.11718v1 · doi: 10.48550/arxiv.1903.11718 · pith_short_12: 2NM2EBKUBYMO · pith_short_16: 2NM2EBKUBYMOVIRF · pith_short_8: 2NM2EBKU

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/2NM2EBKUBYMOVIRFCEUNLLAR64 \
  | 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: d359a205540e18eaa2251128d5ac11f709ccc74f8d82b8a1ccbe0a6ff663f4a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02d6a953e32c68258bda13dccd9585ccbe7ae5dd809846c08954cf21c6d2b0b1",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-03-27T22:21:42Z",
    "title_canon_sha256": "4d5b7d43f5a7240368f5964a8b99d1ed41e6373ac725882eb1f9fb895d916085"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.11718",
    "kind": "arxiv",
    "version": 1
  }
}