Pith Number

pith:OZ3DY6BJ

pith:2018:OZ3DY6BJXYTL2GHEAB53NH6TVP

not attested not anchored not stored refs pending

Optimizing spectroscopic follow-up strategies for supernova photometric classification with active learning

A. Krone-Martins, A. Mahabal, A. Z. Vitorelli, B. Quint, E. E. O. Ishida, E. Gangler (for the COIN collaboration), J. M. Burgess, J. W. Barrett, N. Kennamer, R. Beck, R. S. de Souza, R. Vilalta, S. Gonzalez-Gaitan

arxiv:1804.03765 v3 · 2018-04-11 · 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{OZ3DY6BJXYTL2GHEAB53NH6TVP}

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	2026-05-17T23:57:02.996448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76763c7829be26bd18e4007bb69fd3abca30df4f0c1b64e2d6f848c32bdf0cb4

Aliases

arxiv: 1804.03765 · arxiv_version: 1804.03765v3 · doi: 10.48550/arxiv.1804.03765 · pith_short_12: OZ3DY6BJXYTL · pith_short_16: OZ3DY6BJXYTL2GHE · pith_short_8: OZ3DY6BJ

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/OZ3DY6BJXYTL2GHEAB53NH6TVP \
  | 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: 76763c7829be26bd18e4007bb69fd3abca30df4f0c1b64e2d6f848c32bdf0cb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "468ead4b62ea2d9fafee24162aea6772e8bcd4ad6ca6e62dd9ca1b37e7c86fe0",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-04-11T00:55:25Z",
    "title_canon_sha256": "699340be3a3623398c4920106ee75afb5ff2bb760a6f2c9142184a90c12ec73e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.03765",
    "kind": "arxiv",
    "version": 3
  }
}