Pith Number

pith:KAR4JTU5

pith:2021:KAR4JTU5MNWNP7FHXWCFBC63WT

not attested not anchored not stored refs pending

Infrared Absolute Calibration I: Comparison of Sirius with Fainter Calibration Stars

E. Schlawin, G. C. Sloan, G. H. Rieke, K. Y. L. Su

arxiv:2111.10444 v1 · 2021-11-19 · astro-ph.SR · 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{KAR4JTU5MNWNP7FHXWCFBC63WT}

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	2026-07-05T03:47:26.820575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5023c4ce9d636cd7fca7bd84508bdbb4ef7fc7b5bfbe69373ec89f830de08382

Aliases

arxiv: 2111.10444 · arxiv_version: 2111.10444v1 · doi: 10.48550/arxiv.2111.10444 · pith_short_12: KAR4JTU5MNWN · pith_short_16: KAR4JTU5MNWNP7FH · pith_short_8: KAR4JTU5

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/KAR4JTU5MNWNP7FHXWCFBC63WT \
  | 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: 5023c4ce9d636cd7fca7bd84508bdbb4ef7fc7b5bfbe69373ec89f830de08382

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a16cc143a11f7711a228cd2cfd681cb4b3b4a2db8c9d2c8afb8775bafa1d930",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-11-19T21:35:38Z",
    "title_canon_sha256": "1584fdcce9df4720a9841f94621984c61b9803731e39bd3fa947a36522d86524"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.10444",
    "kind": "arxiv",
    "version": 1
  }
}