Pith Number

pith:74AYLCBB

pith:2017:74AYLCBBXDDO2MOPXZMTPEYC36

not attested not anchored not stored refs pending

Ca II K 1-A Emission Index Composites

Alexei A. Pevtsov, Andrew R. Marble, Luca Bertello

arxiv:1702.00838 v1 · 2017-02-02 · 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{74AYLCBBXDDO2MOPXZMTPEYC36}

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	2026-05-18T00:51:29.629419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff01858821b8c6ed31cfbe59379302df9bb619defd787ad175e9b010de833e1c

Aliases

arxiv: 1702.00838 · arxiv_version: 1702.00838v1 · doi: 10.48550/arxiv.1702.00838 · pith_short_12: 74AYLCBBXDDO · pith_short_16: 74AYLCBBXDDO2MOP · pith_short_8: 74AYLCBB

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/74AYLCBBXDDO2MOPXZMTPEYC36 \
  | 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: ff01858821b8c6ed31cfbe59379302df9bb619defd787ad175e9b010de833e1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bca5461ac9faa967d651bdf0021ac05b81a0685518e7f009b646f7be1fae0c90",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-02-02T21:56:34Z",
    "title_canon_sha256": "db9196b4819e1b2f3a3a2a0fec902b1c40f98cc978fad1b9bb50042c0bb610fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.00838",
    "kind": "arxiv",
    "version": 1
  }
}