Pith Number

pith:M2MA7B6V

pith:2018:M2MA7B6VZS2TQM36INR4XFNICP

not attested not anchored not stored refs pending

Calibration of full-disk He I 10830 \AA\ filtergrams of the Chromospheric Telescope

Andrea Diercke, Carsten Denker, Zili Shen

arxiv:1812.04404 v1 · 2018-12-11 · astro-ph.SR · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M2MA7B6VZS2TQM36INR4XFNICP}

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	2026-05-17T23:52:39.281311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66980f87d5ccb538337e4363cb95a813d02f9932ab87c0c4e555198f492e64e2

Aliases

arxiv: 1812.04404 · arxiv_version: 1812.04404v1 · doi: 10.48550/arxiv.1812.04404 · pith_short_12: M2MA7B6VZS2T · pith_short_16: M2MA7B6VZS2TQM36 · pith_short_8: M2MA7B6V

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/M2MA7B6VZS2TQM36INR4XFNICP \
  | 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: 66980f87d5ccb538337e4363cb95a813d02f9932ab87c0c4e555198f492e64e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "300b3dbb4b7026ff1b873a43b8fbc03f7c5e05e97b35167992176385712a1e27",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-12-11T14:04:23Z",
    "title_canon_sha256": "8d7047de8882830a79d39ac8b3ed42b5725235af7c68f73ce3c84dcdf9014513"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04404",
    "kind": "arxiv",
    "version": 1
  }
}