Pith Number

pith:N4LGES2E

pith:2017:N4LGES2EMTX5WEUZRMXAI763F4

not attested not anchored not stored refs pending

MUSE observations of M87: radial gradients for the stellar initial-mass function and the abundance of Sodium

Chiara Spiniello, Davor Krajnovi\'c, Francesco La Barbera, Marc Sarzi, Remco van den Bosch

arxiv:1711.08980 v1 · 2017-11-24 · 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{N4LGES2EMTX5WEUZRMXAI763F4}

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	2026-05-18T00:15:58.615192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f16624b4464efdb12998b2e047fdb2f3c4e39b7cd406960f37a0959ee6f4f9e

Aliases

arxiv: 1711.08980 · arxiv_version: 1711.08980v1 · doi: 10.48550/arxiv.1711.08980 · pith_short_12: N4LGES2EMTX5 · pith_short_16: N4LGES2EMTX5WEUZ · pith_short_8: N4LGES2E

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/N4LGES2EMTX5WEUZRMXAI763F4 \
  | 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: 6f16624b4464efdb12998b2e047fdb2f3c4e39b7cd406960f37a0959ee6f4f9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "875c6d699cf8fba5af313eb540fdb6cf97e0682ef132d4be76282c94e56cd801",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-11-24T14:30:39Z",
    "title_canon_sha256": "5aac18ba6df3972e30cf9a9e33fba05bea83a13d0455d73b5708177c8355c34c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.08980",
    "kind": "arxiv",
    "version": 1
  }
}