Pith Number

pith:SPYDC52P

pith:2025:SPYDC52PFJLFKGZ3DYWLR57E37

not attested not anchored not stored refs pending

Tilsotua: Reproducing Slitmask Sky Positions for use with the LRIS Multislit Archive

J. Christopher Howk, Jessica Sullivan, John M. O'Meara, Nicolas Lehner, Sunil Simha

arxiv:2504.08118 v2 · 2025-04-10 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SPYDC52PFJLFKGZ3DYWLR57E37}

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	2026-07-05T11:12:30.578530Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93f031774f2a56551b3b1e2cb8f7e4dff61bac32ac4df7a933abcd1be071f59c

Aliases

arxiv: 2504.08118 · arxiv_version: 2504.08118v2 · doi: 10.48550/arxiv.2504.08118 · pith_short_12: SPYDC52PFJLF · pith_short_16: SPYDC52PFJLFKGZ3 · pith_short_8: SPYDC52P

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/SPYDC52PFJLFKGZ3DYWLR57E37 \
  | 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: 93f031774f2a56551b3b1e2cb8f7e4dff61bac32ac4df7a933abcd1be071f59c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5497a3168f09f4c2c19275ca96a0ccc4fd18b30f3ba8b03a893128d18d6bae66",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2025-04-10T20:36:21Z",
    "title_canon_sha256": "9ed59eccbabb66abe00994266f07ab00aa897d5303015b93801dfb8852f956b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.08118",
    "kind": "arxiv",
    "version": 2
  }
}