Pith Number

pith:3PEF4UAC

pith:2015:3PEF4UACRWNIIB2WQS42SWARS7

not attested not anchored not stored refs pending

The IACOB spectroscopic database: recent updates and first data release

A. Herrero, C. Gonz\'alez-Fern\'andez, G. Holgado, I. Camacho, I. Negueruela, J. A. P\'erez-Prieto, J. Ma\'iz Apell\'aniz, J. M. Alacid, K. R\"ubke, M. Garcia, M. Godart, N. Caon, N. Castro, R. Dorda, S. Sim\'on-D\'iaz

arxiv:1504.04257 v1 · 2015-04-16 · 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{3PEF4UACRWNIIB2WQS42SWARS7}

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	2026-05-18T02:18:39.424376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbc85e50028d9a84075684b9a9581197c176331db87464fe12cb368f3bf3b915

Aliases

arxiv: 1504.04257 · arxiv_version: 1504.04257v1 · doi: 10.48550/arxiv.1504.04257 · pith_short_12: 3PEF4UACRWNI · pith_short_16: 3PEF4UACRWNIIB2W · pith_short_8: 3PEF4UAC

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/3PEF4UACRWNIIB2WQS42SWARS7 \
  | 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: dbc85e50028d9a84075684b9a9581197c176331db87464fe12cb368f3bf3b915

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9a8c1e3ef61ae7d418dc14931493c68b2e159fc3219d27019e657a3f46ed7d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-16T14:46:25Z",
    "title_canon_sha256": "500474a8f899a1dadf772899a8036bc29203f2dcd00b4c97f1ba5e4399922d42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04257",
    "kind": "arxiv",
    "version": 1
  }
}