Pith Number

pith:NTXZI7ZL

pith:2015:NTXZI7ZLBAJFTBG3O7PUPZ7JGW

not attested not anchored not stored refs pending

Improving resolution and depth of astronomical observations via modern mathematical methods for image analysis

Adriano Fontana, Daniele Ottaviani, Emiliano Merlin, Marco Castellano, Maurizio Falcone, Stefano Pilo

arxiv:1501.03999 v1 · 2015-01-16 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NTXZI7ZLBAJFTBG3O7PUPZ7JGW}

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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	2026-05-18T02:29:16.537702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cef947f2b08125984db77df47e7e9359bec303cb0c644e0985acb0e4d53f022

Aliases

arxiv: 1501.03999 · arxiv_version: 1501.03999v1 · doi: 10.48550/arxiv.1501.03999 · pith_short_12: NTXZI7ZLBAJF · pith_short_16: NTXZI7ZLBAJFTBG3 · pith_short_8: NTXZI7ZL

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/NTXZI7ZLBAJFTBG3O7PUPZ7JGW \
  | 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: 6cef947f2b08125984db77df47e7e9359bec303cb0c644e0985acb0e4d53f022

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffb961f8279e75d05c6368da24cbf9e378a914f7b6a9155df35495b187d6eccf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-01-16T14:51:21Z",
    "title_canon_sha256": "a2a2ba400f02bb84293b5c86a511c7ad5254ca110bc5a7b1f74b2a718ea094a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.03999",
    "kind": "arxiv",
    "version": 1
  }
}