Pith Number

pith:6EMORXM3

pith:2013:6EMORXM3FO5HYZSOXTFCNRH554

not attested not anchored not stored refs pending

Caught in the act: Cluster `k+a' galaxies as a link between spirals and S0s

(2) DARK, (3) ING/IAC/La Laguna), Alfonso Aragon-Salamanca (1), Bo Milvang-Jensen (2), Bruno Rodriguez Del Pino (1), Copenhagen, Marc Balcells (3) ((1) Nottingham, Michael R. Merrifield (1), Steven P. Bamford (1)

arxiv:1311.2842 v1 · 2013-11-12 · 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{6EMORXM3FO5HYZSOXTFCNRH554}

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	2026-05-18T01:46:31.917235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f118e8dd9b2bba7c664ebcca26c4fdef103c584773fe1a91679388cf40bb2ad0

Aliases

arxiv: 1311.2842 · arxiv_version: 1311.2842v1 · doi: 10.48550/arxiv.1311.2842 · pith_short_12: 6EMORXM3FO5H · pith_short_16: 6EMORXM3FO5HYZSO · pith_short_8: 6EMORXM3

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/6EMORXM3FO5HYZSOXTFCNRH554 \
  | 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: f118e8dd9b2bba7c664ebcca26c4fdef103c584773fe1a91679388cf40bb2ad0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4a8b7117d0bdec9b3fd50953977addd6da505d157ff15c03c9470524435c139",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-11-12T17:26:08Z",
    "title_canon_sha256": "c943d3d31616704a19ea746cb9a46a1400da088ed75a2cb652182e56c0833604"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.2842",
    "kind": "arxiv",
    "version": 1
  }
}