Pith Number

pith:ZEU3MC4M

pith:2013:ZEU3MC4MQ3OBWM6FCV4IY3LYUQ

not attested not anchored not stored refs pending

Adaptive Optics Imaging of VY Canis Majoris at 2 - 5 micron with LBT/LMIRCam

Andrew Skemer, Dinesh P. Shenoy, Jarron M. Leisenring, John C. Wilson, Massimo Marengo, Matthew J. Nelson, Michael F. Skrutskie, Philip M. Hinz, Roberta M. Humphreys, Terry J. Jones, Timothy Rodigas, Vanessa Bailey, Vidhya Vaitheeswaran, William F. Hoffmann

arxiv:1305.6912 v2 · 2013-05-29 · 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{ZEU3MC4MQ3OBWM6FCV4IY3LYUQ}

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	2026-05-18T01:49:40.066595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c929b60b8c86dc1b33c515788c6d78a43369d4de09bbbd2c24537f34c1d59cf3

Aliases

arxiv: 1305.6912 · arxiv_version: 1305.6912v2 · doi: 10.48550/arxiv.1305.6912 · pith_short_12: ZEU3MC4MQ3OB · pith_short_16: ZEU3MC4MQ3OBWM6F · pith_short_8: ZEU3MC4M

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/ZEU3MC4MQ3OBWM6FCV4IY3LYUQ \
  | 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: c929b60b8c86dc1b33c515788c6d78a43369d4de09bbbd2c24537f34c1d59cf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7d73fc4ca066f3c11a688f6560b1ed6775e5051cffe69e6a24ec0d969703890",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-05-29T19:26:30Z",
    "title_canon_sha256": "cfe5cc6b5032ed093013b90c134ca78bd0f22553ef9f49a4960c766ddb934be6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.6912",
    "kind": "arxiv",
    "version": 2
  }
}