Pith Number

pith:ECVUXFOJ

pith:2019:ECVUXFOJ5VSMT2L35CPSDW5Z2D

not attested not anchored not stored refs pending

Quantifying star formation activity in the inner 1kpc of local MIR bright QSOs

A. Alonso-Herrero, C. Ramos Almeida, E. Lopez-Rodriguez, I. Aretxaga, M. Mart\'inez-Paredes, N. A. Levenson, O. Gonzalez-Martin

arxiv:1901.02158 v1 · 2019-01-08 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ECVUXFOJ5VSMT2L35CPSDW5Z2D}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:56:43.887238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20ab4b95c9ed64c9e97be89f21dbb9d0e69e8c9f150052064b8e7c79c45085d9

Aliases

arxiv: 1901.02158 · arxiv_version: 1901.02158v1 · doi: 10.48550/arxiv.1901.02158 · pith_short_12: ECVUXFOJ5VSM · pith_short_16: ECVUXFOJ5VSMT2L3 · pith_short_8: ECVUXFOJ

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/ECVUXFOJ5VSMT2L35CPSDW5Z2D \
  | 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: 20ab4b95c9ed64c9e97be89f21dbb9d0e69e8c9f150052064b8e7c79c45085d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10c232515482dfa507685c8265f36a0ca83b3de09658110db8582326a89d2a04",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-01-08T05:16:05Z",
    "title_canon_sha256": "2900c6e9f2ec9ae39a2b5d99ff34fe8c37a85626c75049ee7b7383e0d0e5de33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02158",
    "kind": "arxiv",
    "version": 1
  }
}