Pith Number

pith:6LPV7FQ2

pith:2009:6LPV7FQ2U753NICQ5WSYHIA2VE

not attested not anchored not stored refs pending

Hydrogen Lyman-alpha and Lyman-beta radiances and profiles in polar coronal holes

Hui Tian, Jean-Claude Vial, Luca Teriaca, Werner Curdt

arxiv:0909.0735 v1 · 2009-09-03 · astro-ph.SR

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

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	2026-05-18T02:34:36.541919Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2df5f961aa7fbb6a050eda583a01aa93de1c79262ba8c5066088e3d2ec08071

Aliases

arxiv: 0909.0735 · arxiv_version: 0909.0735v1 · doi: 10.48550/arxiv.0909.0735 · pith_short_12: 6LPV7FQ2U753 · pith_short_16: 6LPV7FQ2U753NICQ · pith_short_8: 6LPV7FQ2

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/6LPV7FQ2U753NICQ5WSYHIA2VE \
  | 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: f2df5f961aa7fbb6a050eda583a01aa93de1c79262ba8c5066088e3d2ec08071

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc43f8946f61bb4ac30f4878602cda182bfa6b2a43522d8edb034412ec1b4280",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-03T19:17:55Z",
    "title_canon_sha256": "1111af26e9f4d8055bc988962107e181ecc132b8e75e1526f6d548b6628d76d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0735",
    "kind": "arxiv",
    "version": 1
  }
}