Pith Number

pith:DXRYK377

pith:2020:DXRYK3775Z5WLGVJ2QLORRUU4V

not attested not anchored not stored refs pending

USuRPER: Unit-Sphere Representation PERiodogram for full spectra

Avraham Binnenfeld, Sahar Shahaf, Shay Zucker

arxiv:2007.13771 v2 · 2020-07-27 · astro-ph.IM · astro-ph.EP · 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{DXRYK3775Z5WLGVJ2QLORRUU4V}

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	2026-07-05T01:42:40.604216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1de3856fffee7b659aa9d416e8c694e542876c2e3fce4b29c852faa46b15a9f2

Aliases

arxiv: 2007.13771 · arxiv_version: 2007.13771v2 · doi: 10.48550/arxiv.2007.13771 · pith_short_12: DXRYK3775Z5W · pith_short_16: DXRYK3775Z5WLGVJ · pith_short_8: DXRYK377

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/DXRYK3775Z5WLGVJ2QLORRUU4V \
  | 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: 1de3856fffee7b659aa9d416e8c694e542876c2e3fce4b29c852faa46b15a9f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d33f8ceb05016a8d5480b71c6db96f265c13c46fdea299a783226df11e9a338",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-07-27T18:00:04Z",
    "title_canon_sha256": "1dd522282b75e5885a65ddacc4a40105ac48e41b323b9070dcc37a8d796c27b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.13771",
    "kind": "arxiv",
    "version": 2
  }
}