Pith Number

pith:PVPQNHSN

pith:2021:PVPQNHSN7Q2TM6FSK5NCYTTSTM

not attested not anchored not stored refs pending

The origin of bulges and discs in the CALIFA survey: I. Morphological evolution

A. de Lorenzo-Caceres, J. Mendez-Abreu, S. F. Sanchez

arxiv:2104.07743 v1 · 2021-04-15 · 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{PVPQNHSN7Q2TM6FSK5NCYTTSTM}

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	2026-07-05T02:35:43.149601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d5f069e4dfc353678b2575a2c4e729b31457efb3b98e0927ceb712973bc195c

Aliases

arxiv: 2104.07743 · arxiv_version: 2104.07743v1 · doi: 10.48550/arxiv.2104.07743 · pith_short_12: PVPQNHSN7Q2T · pith_short_16: PVPQNHSN7Q2TM6FS · pith_short_8: PVPQNHSN

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/PVPQNHSN7Q2TM6FSK5NCYTTSTM \
  | 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: 7d5f069e4dfc353678b2575a2c4e729b31457efb3b98e0927ceb712973bc195c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cba4e46b7cbabe1a4daaa245f4a2fc299d99d4be27972415ba531f9ca19733ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-04-15T19:48:55Z",
    "title_canon_sha256": "6c38e378977cff03a263af4f871c1b6348e29c3566241a5e0c3a578c1acf8b31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.07743",
    "kind": "arxiv",
    "version": 1
  }
}