Pith Number

pith:T7MR7A2Y

pith:2018:T7MR7A2YVCTBKD4IOWWWMWTRYN

not attested not anchored not stored refs pending

High Resolution Near-Infrared Spectroscopy of Cool Dwarf Stars

Andrea Dupree (1), Cambridge, Dartmouth College, Elisabeth Newton (2) ((1) Center for Astrophysics | Harvard & Smithsonian, Hanover, Jonathan Irwin (1), MA USA, MA USA (2) Massachusetts Institute of Technology, Nancy Brickhouse (1), NH USA), Robert Kurucz (1)

arxiv:1811.05572 v1 · 2018-11-13 · 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{T7MR7A2YVCTBKD4IOWWWMWTRYN}

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	2026-05-17T23:52:04.397847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fd91f8358a8a6150f8875ad665a71c35d27105683b9455bec4183dd4d186f96

Aliases

arxiv: 1811.05572 · arxiv_version: 1811.05572v1 · doi: 10.48550/arxiv.1811.05572 · pith_short_12: T7MR7A2YVCTB · pith_short_16: T7MR7A2YVCTBKD4I · pith_short_8: T7MR7A2Y

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/T7MR7A2YVCTBKD4IOWWWMWTRYN \
  | 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: 9fd91f8358a8a6150f8875ad665a71c35d27105683b9455bec4183dd4d186f96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f5d03fd93202768d20a81c8f7e82d6f4586591cd2ce3c6810053a394e6b2254",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-11-13T23:43:16Z",
    "title_canon_sha256": "0f1efc1a354da88b84f4d67b652c43f3fe48eb8f28c03b97fb69d3a22b45b0ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.05572",
    "kind": "arxiv",
    "version": 1
  }
}