Pith Number

pith:5EFXCKDB

pith:2019:5EFXCKDBTUQXRDZCWRL44R6ZQ7

not attested not anchored not stored refs pending

Ensemble age inversions for large spectroscopic surveys

Alexey Mints, Ivan Minchev, Saskia Hekker

arxiv:1908.04548 v1 · 2019-08-13 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5EFXCKDBTUQXRDZCWRL44R6ZQ7}

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	2026-07-05T00:05:13.278832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e90b7128619d21788f22b457ce47d987e3bd5197b212508acd2455dc37730219

Aliases

arxiv: 1908.04548 · arxiv_version: 1908.04548v1 · doi: 10.48550/arxiv.1908.04548 · pith_short_12: 5EFXCKDBTUQX · pith_short_16: 5EFXCKDBTUQXRDZC · pith_short_8: 5EFXCKDB

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/5EFXCKDBTUQXRDZCWRL44R6ZQ7 \
  | 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: e90b7128619d21788f22b457ce47d987e3bd5197b212508acd2455dc37730219

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04c6735d56d4c5e68535fa887b842aacb4c01c503579071af9809764e4351f76",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-13T09:01:01Z",
    "title_canon_sha256": "22cd261a551c8037e6d8a5a51d2f8bd4538b433209bbfa2b87c1d3675becbc88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04548",
    "kind": "arxiv",
    "version": 1
  }
}