Pith Number

pith:BD4BX53O

pith:2020:BD4BX53OLE5VUARIKTK4TCKHGS

not attested not anchored not stored refs pending

Center for Astrophysics Optical Infrared Science Archive. I. FAST Spectrograph

Daniel Fabricant, Igor V. Chilingarian, Jaehyon Rhee, Jessica Mink, Michael J. Kurtz, Sean Moran, Susan Tokarz, Warren R. Brown, William F. Wyatt

arxiv:2012.03470 v1 · 2020-12-07 · astro-ph.IM · astro-ph.GA · 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{BD4BX53OLE5VUARIKTK4TCKHGS}

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	2026-07-05T01:57:29.970800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08f81bf76e593b5a022854d5c9894734beb7d463698113ae534365e80c86dfff

Aliases

arxiv: 2012.03470 · arxiv_version: 2012.03470v1 · doi: 10.48550/arxiv.2012.03470 · pith_short_12: BD4BX53OLE5V · pith_short_16: BD4BX53OLE5VUARI · pith_short_8: BD4BX53O

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/BD4BX53OLE5VUARIKTK4TCKHGS \
  | 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: 08f81bf76e593b5a022854d5c9894734beb7d463698113ae534365e80c86dfff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b9218af05f1104f090be61fbed4156d6d4bdebe949f84ab43607fffb66f0b23",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-12-07T06:28:56Z",
    "title_canon_sha256": "b94d0e6f6201a5f27cf74c55bbb04434a3d7f5a98366e6ef1ce9e81913bf6dfe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.03470",
    "kind": "arxiv",
    "version": 1
  }
}