Pith Number

pith:L77KNG6M

pith:2014:L77KNG6MPM7FS2QQWZTS2E4O24

not attested not anchored not stored refs pending

VLT observations of the asymmetric Etched Hourglass Nebula, MyCn 18

J. Meaburn, M. Lloyd, M. Matsuura, M. P. Redman, N. Clyne, N. Singh

arxiv:1408.4030 v1 · 2014-08-18 · 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{L77KNG6MPM7FS2QQWZTS2E4O24}

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	2026-05-18T02:42:07.498027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ffea69bcc7b3e596a10b6672d138ed709dba851cf9320fffed3c260b2611efd

Aliases

arxiv: 1408.4030 · arxiv_version: 1408.4030v1 · doi: 10.48550/arxiv.1408.4030 · pith_short_12: L77KNG6MPM7F · pith_short_16: L77KNG6MPM7FS2QQ · pith_short_8: L77KNG6M

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/L77KNG6MPM7FS2QQWZTS2E4O24 \
  | 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: 5ffea69bcc7b3e596a10b6672d138ed709dba851cf9320fffed3c260b2611efd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62d3dbf29eb62b40b4b5def66e47ecc6c39a7f4fa7e2dba9980ad39ef710f23e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-08-18T14:59:59Z",
    "title_canon_sha256": "1925b25311a4e2f51a5bdeae6025da20bf7ed0dd7e25fc020de7d11c7d6d9d9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.4030",
    "kind": "arxiv",
    "version": 1
  }
}