Pith Number

pith:FUMSNOKQ

pith:2020:FUMSNOKQR7C46OF7BD7CJVXD7W

not attested not anchored not stored refs pending

High-resolution spectroscopy and spectropolarimetry of the total lunar eclipse January 2019

A. J\"arvinen, E. Keles, F. Mackebrandt, I. Ilyin, J. M. Hill, K. G. Strassmeier, M. Mallonn, M. Weber

arxiv:2002.08690 v1 · 2020-02-20 · astro-ph.EP · astro-ph.IM · 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{FUMSNOKQR7C46OF7BD7CJVXD7W}

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	2026-07-05T00:51:41.387941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d1926b9508fc5cf38bf08fe24d6e3fdb8ecb6868b804d9b5bd4369cfa5042bd

Aliases

arxiv: 2002.08690 · arxiv_version: 2002.08690v1 · doi: 10.48550/arxiv.2002.08690 · pith_short_12: FUMSNOKQR7C4 · pith_short_16: FUMSNOKQR7C46OF7 · pith_short_8: FUMSNOKQ

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/FUMSNOKQR7C46OF7BD7CJVXD7W \
  | 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: 2d1926b9508fc5cf38bf08fe24d6e3fdb8ecb6868b804d9b5bd4369cfa5042bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d81f3d00f51c5b6bd60ea7492b630c73a8c5467902d98af6e7c7d19ac4e98ab7",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2020-02-20T11:52:58Z",
    "title_canon_sha256": "a5a695d0a365f336b04dde2fe6f39ffb9b5af30b5b2fcb4a93062675ab3d9314"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.08690",
    "kind": "arxiv",
    "version": 1
  }
}