Pith Number

pith:NESCL25C

pith:2015:NESCL25C3XJTNINZ5BIHSJ6MPO

not attested not anchored not stored refs pending

Further evidence for a time-dependent initial mass function in massive early-type galaxies

(2) IAC, (3) INAF/OAC), A. Vazdekis (2), C. Weidner (2), F. La Barbera (3) ((1) MSSL/UCL, I. Ferreras (1)

arxiv:1501.01636 v1 · 2015-01-07 · 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{NESCL25C3XJTNINZ5BIHSJ6MPO}

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	2026-05-18T01:41:13.927495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

692425eba2ddd336a1b9e8507927cc7b916abc31af3c2fb66021902a61ea51ac

Aliases

arxiv: 1501.01636 · arxiv_version: 1501.01636v1 · doi: 10.48550/arxiv.1501.01636 · pith_short_12: NESCL25C3XJT · pith_short_16: NESCL25C3XJTNINZ · pith_short_8: NESCL25C

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/NESCL25C3XJTNINZ5BIHSJ6MPO \
  | 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: 692425eba2ddd336a1b9e8507927cc7b916abc31af3c2fb66021902a61ea51ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40d9c75da1c39da9335479dfc764d18edd8c2c7992c958c955f249be8cbe9cd3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-01-07T21:00:12Z",
    "title_canon_sha256": "c963833c602e54b0cd9c2b52a594c38c6257cb12231fc56dcdeb29973c2c66e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01636",
    "kind": "arxiv",
    "version": 1
  }
}