Pith Number

pith:OOU2MXHV

pith:2015:OOU2MXHV5NCRVSIUCFRXR5SDOZ

not attested not anchored not stored refs pending

Large dust grains in the wind of VY Canis Majoris

J.A.D.L Blommaert, M. Kasper, N.V. Voshchinnikov, P. Scicluna, R. Siebenmorgen, R. Wesson, S. Wolf

arxiv:1511.07624 v1 · 2015-11-24 · 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{OOU2MXHV5NCRVSIUCFRXR5SDOZ}

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	2026-05-18T01:25:31.094896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73a9a65cf5eb451ac914116378f6437665cc4622353d511fa5a7b75b2d367cd1

Aliases

arxiv: 1511.07624 · arxiv_version: 1511.07624v1 · doi: 10.48550/arxiv.1511.07624 · pith_short_12: OOU2MXHV5NCR · pith_short_16: OOU2MXHV5NCRVSIU · pith_short_8: OOU2MXHV

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/OOU2MXHV5NCRVSIUCFRXR5SDOZ \
  | 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: 73a9a65cf5eb451ac914116378f6437665cc4622353d511fa5a7b75b2d367cd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a02c3de71be6cb8964182eb4458e4d6a20f802eba395c6f2b2858c543600a2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-11-24T09:40:36Z",
    "title_canon_sha256": "b862598172166a88b66a8860294add9be9f681940f75b3b7062a46a54df82a92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.07624",
    "kind": "arxiv",
    "version": 1
  }
}