Pith Number

pith:PQXQTM3D

pith:2016:PQXQTM3DNFFFQBOXNQXEKF3YDD

not attested not anchored not stored refs pending

Mapping the Similarities of Spectra: Global and Locally-biased Approaches to SDSS Galaxy Data

David Lawlor, Michael W. Mahoney, Tam\'as Budav\'ari

arxiv:1609.03932 v1 · 2016-09-13 · astro-ph.IM · astro-ph.CO · cs.DS · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PQXQTM3DNFFFQBOXNQXEKF3YDD}

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	2026-05-18T00:55:11.950858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c2f09b363694a5805d76c2e45177818c70020ebf7e4203c902eacd0d96093d7

Aliases

arxiv: 1609.03932 · arxiv_version: 1609.03932v1 · doi: 10.48550/arxiv.1609.03932 · pith_short_12: PQXQTM3DNFFF · pith_short_16: PQXQTM3DNFFFQBOX · pith_short_8: PQXQTM3D

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/PQXQTM3DNFFFQBOXNQXEKF3YDD \
  | 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: 7c2f09b363694a5805d76c2e45177818c70020ebf7e4203c902eacd0d96093d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d3db7e262bf14ef01f1db0d5f3bdff742c2db49c05f248de9aae6d8d246abc0",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "cs.DS",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2016-09-13T16:46:51Z",
    "title_canon_sha256": "9a032c093be6b4ebf6aef0e848ad717dec6883c14b8efe3cb4e771fb7841b85b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.03932",
    "kind": "arxiv",
    "version": 1
  }
}