Pith Number

pith:NU4RVV6V

pith:2010:NU4RVV6VIN3PK3QROSJPDEAN6W

not attested not anchored not stored refs pending

An iterative method in a probabilistic approach to the spectral inverse problem: Differential emission measure from line spectra and broadband data

A.M. Urnov, F.F. Goryaev, F. Reale, J.-F. Hochedez, S.N. Oparin, S. Parenti

arxiv:1010.5170 v1 · 2010-10-25 · 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{NU4RVV6VIN3PK3QROSJPDEAN6W}

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	2026-05-18T03:01:24.625626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d391ad7d54376f56e117492f1900df585b87b2cd0c76883722c2bb1dc94dae4

Aliases

arxiv: 1010.5170 · arxiv_version: 1010.5170v1 · doi: 10.48550/arxiv.1010.5170 · pith_short_12: NU4RVV6VIN3P · pith_short_16: NU4RVV6VIN3PK3QR · pith_short_8: NU4RVV6V

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/NU4RVV6VIN3PK3QROSJPDEAN6W \
  | 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: 6d391ad7d54376f56e117492f1900df585b87b2cd0c76883722c2bb1dc94dae4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7caf3f8ac6b431b5894ae831629b04b69233708f74f82248591a844c6e5ee3a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-10-25T15:44:32Z",
    "title_canon_sha256": "0f8b7c6975f79a6591dcc44a3a76f8f48539493156a42c4f9d29432358ddf136"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.5170",
    "kind": "arxiv",
    "version": 1
  }
}