Pith Number

pith:B2ZREWOH

pith:2013:B2ZREWOHQ2J4JGGF43JBYHLNEZ

not attested not anchored not stored refs pending

Colour gradients of high-redshift Early-Type Galaxies from hydrodynamical monolithic models

A. D'Ercole, A. Pipino, C. Tortora, F. Matteucci, N.R. Napolitano

arxiv:1307.4079 v1 · 2013-07-15 · 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{B2ZREWOHQ2J4JGGF43JBYHLNEZ}

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	2026-05-18T01:48:49.990704Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0eb31259c78693c498c5e6d21c1d6d26627057c74f61c869a6faa94f65642c18

Aliases

arxiv: 1307.4079 · arxiv_version: 1307.4079v1 · doi: 10.48550/arxiv.1307.4079 · pith_short_12: B2ZREWOHQ2J4 · pith_short_16: B2ZREWOHQ2J4JGGF · pith_short_8: B2ZREWOH

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/B2ZREWOHQ2J4JGGF43JBYHLNEZ \
  | 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: 0eb31259c78693c498c5e6d21c1d6d26627057c74f61c869a6faa94f65642c18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e33ca031ed59acbfb5846d85c64c49c176a85f1830499ba850c3248a2d20cdd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-07-15T20:00:01Z",
    "title_canon_sha256": "200e4a6de9e83461b5deb8f528b9a0380dc7f055ce8cdfb1b9f00742fd359f86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.4079",
    "kind": "arxiv",
    "version": 1
  }
}