Pith Number

pith:UDNPSDCN

pith:2025:UDNPSDCNEFWWPX5WHPIE6FTDB7

not attested not anchored not stored refs pending

An Integral Field Unit for the Binospec Spectrograph

Daniel Fabricant, Igor Chilingarian, Joseph Zajac, Martin Paegert, Matthew Smith, Robert Fata, Sagi Ben-Ami, Sean Moran

arxiv:2501.01528 v1 · 2025-01-02 · 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{UDNPSDCNEFWWPX5WHPIE6FTDB7}

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	2026-07-05T09:56:26.257809Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0daf90c4d216d67dfb63bd04f16630fc50387457f5894d0dec0d7bbd431e587

Aliases

arxiv: 2501.01528 · arxiv_version: 2501.01528v1 · doi: 10.48550/arxiv.2501.01528 · pith_short_12: UDNPSDCNEFWW · pith_short_16: UDNPSDCNEFWWPX5W · pith_short_8: UDNPSDCN

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/UDNPSDCNEFWWPX5WHPIE6FTDB7 \
  | 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: a0daf90c4d216d67dfb63bd04f16630fc50387457f5894d0dec0d7bbd431e587

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de17901a355db769a7c09fce91019238b9185157fa8ae5b5d5bc51816f074426",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2025-01-02T20:37:01Z",
    "title_canon_sha256": "205d2ab38ba0c8fdc801e2c7eb5b6ae8f75b851b4f6fec66230a115c4c79c21b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.01528",
    "kind": "arxiv",
    "version": 1
  }
}