Pith Number

pith:HWSO6ZM7

pith:2021:HWSO6ZM7JO3A6JF7EXLQXPUIRI

not attested not anchored not stored refs pending

Observing, calibrating and reducing near-infrared imaging mosaics

Igor Chilingarian, Kirill Grishin

arxiv:2112.01620 v1 · 2021-12-02 · 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{HWSO6ZM7JO3A6JF7EXLQXPUIRI}

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	2026-07-05T03:37:12.573006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3da4ef659f4bb60f24bf25d70bbe888a29549b7992bdd5c84cb6d3cdc92b6db9

Aliases

arxiv: 2112.01620 · arxiv_version: 2112.01620v1 · doi: 10.48550/arxiv.2112.01620 · pith_short_12: HWSO6ZM7JO3A · pith_short_16: HWSO6ZM7JO3A6JF7 · pith_short_8: HWSO6ZM7

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/HWSO6ZM7JO3A6JF7EXLQXPUIRI \
  | 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: 3da4ef659f4bb60f24bf25d70bbe888a29549b7992bdd5c84cb6d3cdc92b6db9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "930a251426272f17d6c2dd596ded230af4f8493857359e5950bbb5d8d663fb82",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-12-02T21:54:45Z",
    "title_canon_sha256": "368a2a3805dc64564017fb02b54c926796696d9762fcd4f240d5dda7b5945393"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.01620",
    "kind": "arxiv",
    "version": 1
  }
}