Pith Number

pith:MIO6YXPA

pith:2017:MIO6YXPAVBM2EO2OK6NXUIYJRG

not attested not anchored not stored refs pending

Automated identification of coronal holes from synoptic EUV maps

Amr Hamada, Ilpo Virtanen, Kalevi Mursula, Timo Asikainen

arxiv:1712.01522 v1 · 2017-12-05 · physics.space-ph · 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{MIO6YXPAVBM2EO2OK6NXUIYJRG}

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	2026-05-18T00:17:08.359794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

621dec5de0a859a23b4e579b7a230989bee086c4146d554d28157e1ca1bd2a79

Aliases

arxiv: 1712.01522 · arxiv_version: 1712.01522v1 · doi: 10.48550/arxiv.1712.01522 · pith_short_12: MIO6YXPAVBM2 · pith_short_16: MIO6YXPAVBM2EO2O · pith_short_8: MIO6YXPA

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/MIO6YXPAVBM2EO2OK6NXUIYJRG \
  | 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: 621dec5de0a859a23b4e579b7a230989bee086c4146d554d28157e1ca1bd2a79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c20701e68aa179ef4f0688258c0d70855f6febdc6fd2c172216ac2264ae10694",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.space-ph",
    "submitted_at": "2017-12-05T08:20:20Z",
    "title_canon_sha256": "5d8dc8cd959cccbbded0c81dcb4c0f9d0d14802035f08dda2e3d67fae78eb0a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01522",
    "kind": "arxiv",
    "version": 1
  }
}