Pith Number

pith:IN7ZVDSG

pith:2015:IN7ZVDSGYPFXTTLWIKFHAWB3XD

not attested not anchored not stored refs pending

Blend lines in the polarized spectrum of the Sun

K. N. Nagendra, K. Sowmya, M. Sampoorna

arxiv:1512.07728 v1 · 2015-12-24 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IN7ZVDSGYPFXTTLWIKFHAWB3XD}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:23:48.026851Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

437f9a8e46c3cb79cd76428a70583bb8e3d58dfecf98fe3b682b3a24c8f5e6fd

Aliases

arxiv: 1512.07728 · arxiv_version: 1512.07728v1 · doi: 10.48550/arxiv.1512.07728 · pith_short_12: IN7ZVDSGYPFX · pith_short_16: IN7ZVDSGYPFXTTLW · pith_short_8: IN7ZVDSG

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/IN7ZVDSGYPFXTTLWIKFHAWB3XD \
  | 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: 437f9a8e46c3cb79cd76428a70583bb8e3d58dfecf98fe3b682b3a24c8f5e6fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7c6d09b4df8ef7346eaf16b8b1d10090b606fdd2f464074f1a603325364e3ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-12-24T06:55:00Z",
    "title_canon_sha256": "98d220b7006ba45c0accd5425a81525a64c5b2447ba6af71191398fc9e0cba51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.07728",
    "kind": "arxiv",
    "version": 1
  }
}