Pith Number

pith:TVD4KL3I

pith:2019:TVD4KL3IEQGVRBLFJ5LXYT6ZGE

not attested not anchored not stored refs pending

Chronos: A NIR spectroscopic survey to target the most important phases of galaxy evolution across cosmic time

A. M. Hopkins, A. Pasquali, C.J. Conselice, F. La Barbera, G. Bruzual, I. Ferreras, J. Bland-Hawthorn, J. Dunlop, J. Silk, M. Cropper, O. Lahav, R. Sharples, R. Windhorst, S. Charlot, S. Driver, S. Kaviraj, S. Serjeant, T. Kitching

arxiv:1908.08795 v1 · 2019-08-22 · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TVD4KL3IEQGVRBLFJ5LXYT6ZGE}

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	2026-07-05T06:20:15.883398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d47c52f68240d5885654f577c4fd93119f6ba1167bbd81218b4f95d78713ced

Aliases

arxiv: 1908.08795 · arxiv_version: 1908.08795v1 · doi: 10.48550/arxiv.1908.08795 · pith_short_12: TVD4KL3IEQGV · pith_short_16: TVD4KL3IEQGVRBLF · pith_short_8: TVD4KL3I

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/TVD4KL3IEQGVRBLFJ5LXYT6ZGE \
  | 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: 9d47c52f68240d5885654f577c4fd93119f6ba1167bbd81218b4f95d78713ced

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f1634396eda661814f06bfc495e9c1c55cfdb1fd834c2ab00a2c961796b6fde",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-22T07:56:03Z",
    "title_canon_sha256": "b2484738f1c1d5ceafe84882972f054ef408604d7ddea3b2d936351d28a66f4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08795",
    "kind": "arxiv",
    "version": 1
  }
}