Pith Number

pith:3QMXIQ4H

pith:2014:3QMXIQ4HDEIGDXZG4EUGLAL4FO

not attested not anchored not stored refs pending

Spectroscopic Needs for Training of LSST Photometric Redshifts

Alexandra Abate, Jeffrey A. Newman, Samuel J. Schmidt, the Spectroscopic Needs White Paper team

arxiv:1410.4498 v1 · 2014-10-16 · astro-ph.IM · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3QMXIQ4HDEIGDXZG4EUGLAL4FO}

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	2026-05-18T02:39:56.047094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc19744387191061df26e12865817c2b8607adec1f4a522b7b5810f65a2eafbb

Aliases

arxiv: 1410.4498 · arxiv_version: 1410.4498v1 · doi: 10.48550/arxiv.1410.4498 · pith_short_12: 3QMXIQ4HDEIG · pith_short_16: 3QMXIQ4HDEIGDXZG · pith_short_8: 3QMXIQ4H

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/3QMXIQ4HDEIGDXZG4EUGLAL4FO \
  | 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: dc19744387191061df26e12865817c2b8607adec1f4a522b7b5810f65a2eafbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "feb7c8c7b02345f3c9bc4a525705c677a3b9623c72c9a37b8d7fed2a0e6b5715",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-10-16T17:12:21Z",
    "title_canon_sha256": "955c92f0d0087961b0cd36e0c6f0995cfa4a173032d5cd1963b248224d1d6359"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.4498",
    "kind": "arxiv",
    "version": 1
  }
}