Pith Number

pith:GQL4YHCO

pith:2011:GQL4YHCOSPRSA2CRYBUS44EC2X

not attested not anchored not stored refs pending

Lunar Eclipse of June, 15, 2011: Three-color umbra surface photometry

Igor A. Maslov, Oleg S. Ugolnikov, Stanislav A. Korotkiy

arxiv:1106.6178 v2 · 2011-06-30 · astro-ph.EP · physics.ao-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GQL4YHCOSPRSA2CRYBUS44EC2X}

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	2026-05-18T04:10:56.633708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3417cc1c4e93e3206851c0692e7082d5e9f89c68a60c8720e4c4d514149f7f74

Aliases

arxiv: 1106.6178 · arxiv_version: 1106.6178v2 · doi: 10.48550/arxiv.1106.6178 · pith_short_12: GQL4YHCOSPRS · pith_short_16: GQL4YHCOSPRSA2CR · pith_short_8: GQL4YHCO

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/GQL4YHCOSPRSA2CRYBUS44EC2X \
  | 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: 3417cc1c4e93e3206851c0692e7082d5e9f89c68a60c8720e4c4d514149f7f74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15170a74771f8389d9e5e82c27ba8792306eab9e069caf78621372f66efacaaf",
    "cross_cats_sorted": [
      "physics.ao-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-06-30T10:33:38Z",
    "title_canon_sha256": "323a7704ca4aff0adb3b4358e6ec64f584bc2394accca2f180ba944845dd018f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.6178",
    "kind": "arxiv",
    "version": 2
  }
}