Pith Number

pith:NEC3AAWX

pith:2015:NEC3AAWXH5YZDYXIMWZK4EAIKK

not attested not anchored not stored refs pending

The Contribution of Spiral Arms to the Thick Disk along the Hubble Sequence

A. P\'erez-Villegas, B. Pichardo, E. Moreno, L. A. Martinez-Medina

arxiv:1501.07649 v1 · 2015-01-30 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NEC3AAWXH5YZDYXIMWZK4EAIKK}

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	2026-05-18T02:19:42.274756Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6905b002d73f7191e2e865b2ae1008528c19465ff4b3e675957110b541a0b648

Aliases

arxiv: 1501.07649 · arxiv_version: 1501.07649v1 · doi: 10.48550/arxiv.1501.07649 · pith_short_12: NEC3AAWXH5YZ · pith_short_16: NEC3AAWXH5YZDYXI · pith_short_8: NEC3AAWX

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/NEC3AAWXH5YZDYXIMWZK4EAIKK \
  | 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: 6905b002d73f7191e2e865b2ae1008528c19465ff4b3e675957110b541a0b648

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "131449ade06e9a9368d103a6ef41d3485aafc40ce59d954ff24fdedf13fa8fd3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-01-30T02:18:48Z",
    "title_canon_sha256": "241e2af2350f427909f00509d384ea45b9f2d0c9cd8271a199902fc2ae167efb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07649",
    "kind": "arxiv",
    "version": 1
  }
}