Pith Number

pith:J77GPVR2

pith:2009:J77GPVR2T73FQ3ARO7L5V4OFAN

not attested not anchored not stored refs pending

The 2008 August 1 Eclipse Solar-Minimum Corona Unraveled

Jay M. Pasachoff, Metod Saniga, Milan Minarovjech, Miloslav Druckmuller, Peter Aniol, Vojtech Rusin

arxiv:0907.1643 v1 · 2009-07-09 · 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{J77GPVR2T73FQ3ARO7L5V4OFAN}

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	2026-05-18T04:38:17.445907Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ffe67d63a9ff6586c1177d7daf1c50356046cfddab5ac7392fd01a46540d008

Aliases

arxiv: 0907.1643 · arxiv_version: 0907.1643v1 · doi: 10.48550/arxiv.0907.1643 · pith_short_12: J77GPVR2T73F · pith_short_16: J77GPVR2T73FQ3AR · pith_short_8: J77GPVR2

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/J77GPVR2T73FQ3ARO7L5V4OFAN \
  | 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: 4ffe67d63a9ff6586c1177d7daf1c50356046cfddab5ac7392fd01a46540d008

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b42c96707d0780d21235bfcd2823d2d19514430de14338f5d6fca01c2b30df7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-07-09T18:40:58Z",
    "title_canon_sha256": "39d4e14e77ff3150c4c5a3114cd18d544b7c761da6e7d5a20894414765d9ba69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.1643",
    "kind": "arxiv",
    "version": 1
  }
}