Pith Number

pith:ARI75VDO

pith:2021:ARI75VDOMK5UCQUKCM3PWQFOJB

not attested not anchored not stored refs pending

Discovery of 13 New Orbital Periods for Classical Novae

Bradley E. Schaefer (Louisiana State University)

arxiv:2106.13907 v1 · 2021-06-25 · astro-ph.SR · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ARI75VDOMK5UCQUKCM3PWQFOJB}

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	2026-07-05T02:52:29.707475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0451fed46e62bb41428a1336fb40ae4872a078f893ff39ada7e43ac669fc405c

Aliases

arxiv: 2106.13907 · arxiv_version: 2106.13907v1 · doi: 10.48550/arxiv.2106.13907 · pith_short_12: ARI75VDOMK5U · pith_short_16: ARI75VDOMK5UCQUK · pith_short_8: ARI75VDO

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/ARI75VDOMK5UCQUKCM3PWQFOJB \
  | 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: 0451fed46e62bb41428a1336fb40ae4872a078f893ff39ada7e43ac669fc405c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "143c261919b317eb64d7f3f5bd29bc626f00e6940520ef93824efc1601ae7150",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-06-25T22:59:54Z",
    "title_canon_sha256": "8ffcea8a067501f1b81e00dcd9a9d89a0284dc46f6dda2473c359e441b831d30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.13907",
    "kind": "arxiv",
    "version": 1
  }
}