Pith Number

pith:DWTXGABX

pith:2011:DWTXGABXC3L35NWBZ3VDRJLSLK

not attested not anchored not stored refs pending

Do galaxies form a spectroscopic sequence?

Jorge Sanchez-Almeida, Yago Ascasibar

arxiv:1104.1388 v1 · 2011-04-07 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DWTXGABXC3L35NWBZ3VDRJLSLK}

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	2026-05-18T02:02:36.634931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1da773003716d7beb6c1ceea38a5725a821205e4d6e434536d6c757cf355364b

Aliases

arxiv: 1104.1388 · arxiv_version: 1104.1388v1 · doi: 10.48550/arxiv.1104.1388 · pith_short_12: DWTXGABXC3L3 · pith_short_16: DWTXGABXC3L35NWB · pith_short_8: DWTXGABX

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/DWTXGABXC3L35NWBZ3VDRJLSLK \
  | 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: 1da773003716d7beb6c1ceea38a5725a821205e4d6e434536d6c757cf355364b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30eb37b87803289132df84a9e4f86080cb23d6c22b9727687e4e8cdfb9ab431a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-04-07T17:24:14Z",
    "title_canon_sha256": "4f5ab0d812d3b620dedd14024454c62685cb7190b7ba4851300c82c67920d194"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1388",
    "kind": "arxiv",
    "version": 1
  }
}