Pith Number

pith:E5SKLDJT

pith:2020:E5SKLDJT3DSWIIDAYNF7W6IMI4

not attested not anchored not stored refs pending

The Keck Planet Imager and Characterizer: Phase I fiber injection unit early performance and commissioning

Andrew J. Skemer, Charlotte Z. Bond, Dimitri Mawet, Evan C. Morris, Jacklyn Pezzato, Jacques-Robert Delorme, Jason J. Wang, Jean-Baptiste Ruffio

arxiv:2012.12318 v1 · 2020-12-22 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E5SKLDJT3DSWIIDAYNF7W6IMI4}

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	2026-07-05T02:01:34.383293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2764a58d33d8e5642060c34bfb790c470e0eaf1d9c988787bb5150ed7fae1c28

Aliases

arxiv: 2012.12318 · arxiv_version: 2012.12318v1 · doi: 10.48550/arxiv.2012.12318 · pith_short_12: E5SKLDJT3DSW · pith_short_16: E5SKLDJT3DSWIIDA · pith_short_8: E5SKLDJT

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/E5SKLDJT3DSWIIDAYNF7W6IMI4 \
  | 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: 2764a58d33d8e5642060c34bfb790c470e0eaf1d9c988787bb5150ed7fae1c28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be7c941c47bc17663118d4d374dfd0bcfc68fe497d30cdfd90009006c1190205",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-12-22T19:41:01Z",
    "title_canon_sha256": "a717076e65f1c46c9e72562a4f5b0a307aa4b3b7157f5a40dbc94a2129f606fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.12318",
    "kind": "arxiv",
    "version": 1
  }
}