Pith Number

pith:HENP4WIQ

pith:2012:HENP4WIQKLUY6TEA5D6CFVXJDJ

not attested not anchored not stored refs pending

Polarimetric coronagraphy of BD+31643

A. Djupvik, G. Olofsson, H.-G. Flor\'en, M. Aberasturi, R. Nilsson

arxiv:1208.0155 v1 · 2012-08-01 · 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{HENP4WIQKLUY6TEA5D6CFVXJDJ}

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	2026-05-18T03:49:36.129102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

391afe591052e98f4c80e8fc22d6e91a488136b92f2941d1b51687387c87ab80

Aliases

arxiv: 1208.0155 · arxiv_version: 1208.0155v1 · doi: 10.48550/arxiv.1208.0155 · pith_short_12: HENP4WIQKLUY · pith_short_16: HENP4WIQKLUY6TEA · pith_short_8: HENP4WIQ

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/HENP4WIQKLUY6TEA5D6CFVXJDJ \
  | 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: 391afe591052e98f4c80e8fc22d6e91a488136b92f2941d1b51687387c87ab80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5399265b90d0381423358956b9f0ab9a195ca472afea5a39ca45a0ce88b9b21d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-08-01T09:57:50Z",
    "title_canon_sha256": "4cf94c147440838bfeccbde4a47d2dbc4cf3f9dfd47aa99e86fefa72c0e470f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0155",
    "kind": "arxiv",
    "version": 1
  }
}