Pith Number

pith:P77YLIMZ

pith:2018:P77YLIMZGLKV5LWD2GGYNGX622

not attested not anchored not stored refs pending

SALT HRS discovery of the binary nucleus of the Etched Hourglass Nebula MyCn 18

Brent Miszalski (SAAO/SALT), Hans van Winckel (KU Leuven), Joanna Miko{\l}ajewska (NCAC Warsaw), Krystian I{\l}kiewicz (NCAC Warsaw), Rajeev Manick (KU Leuven)

arxiv:1805.07602 v1 · 2018-05-19 · 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{P77YLIMZGLKV5LWD2GGYNGX622}

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	2026-05-18T00:10:37.470847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fff85a19932d55eaec3d18d869afed69c75c67289c5ac1be3adc263285fee87

Aliases

arxiv: 1805.07602 · arxiv_version: 1805.07602v1 · doi: 10.48550/arxiv.1805.07602 · pith_short_12: P77YLIMZGLKV · pith_short_16: P77YLIMZGLKV5LWD · pith_short_8: P77YLIMZ

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/P77YLIMZGLKV5LWD2GGYNGX622 \
  | 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: 7fff85a19932d55eaec3d18d869afed69c75c67289c5ac1be3adc263285fee87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bb46e56a7b358143db2aabbe48074f6fe04217a96335e62b1f1c47690133edb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-05-19T14:31:42Z",
    "title_canon_sha256": "ccb9438c82c2eb2dbb519094a266f90e7af68421ef02d5e5c72ea900b9181c32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07602",
    "kind": "arxiv",
    "version": 1
  }
}