Pith Number

pith:H64PEPI4

pith:2013:H64PEPI4WRHXATV3FXPNJRGFBY

not attested not anchored not stored refs pending

The Mystery of the $\sigma$-Bump -- A new Signature for Major Mergers in Early-type Galaxies?

Andreas Burkert, Anna T. P. Schauer, Peter H. Johansson, Rhea-Silvia Remus

arxiv:1312.1337 v2 · 2013-12-04 · astro-ph.GA · 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{H64PEPI4WRHXATV3FXPNJRGFBY}

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	2026-05-18T01:45:58.565548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fb8f23d1cb44f704ebb2dded4c4c50e096bb39d972ba86609dc3bc23ed5389a

Aliases

arxiv: 1312.1337 · arxiv_version: 1312.1337v2 · doi: 10.48550/arxiv.1312.1337 · pith_short_12: H64PEPI4WRHX · pith_short_16: H64PEPI4WRHXATV3 · pith_short_8: H64PEPI4

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/H64PEPI4WRHXATV3FXPNJRGFBY \
  | 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: 3fb8f23d1cb44f704ebb2dded4c4c50e096bb39d972ba86609dc3bc23ed5389a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0dd19771ab71775304d2c74528d6955a969ce8993594cd4d2bc151994030f12",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-12-04T21:00:03Z",
    "title_canon_sha256": "5f2afa516f37a67b7b29da2667b3c68fe6f4a2a6e828a5f39322d953317e7f58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1337",
    "kind": "arxiv",
    "version": 2
  }
}