Pith Number

pith:SW54UASX

pith:2023:SW54UASXAWDHNDHBUNPWBSGC2O

not attested not anchored not stored refs pending

The opacity limit

Michael Y. Grudi\'c, Philip F. Hopkins

arxiv:2308.16268 v1 · 2023-08-30 · astro-ph.GA · 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{SW54UASXAWDHNDHBUNPWBSGC2O}

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.

Cited by

1 paper in Pith

Variation of the low-mass end of the stellar initial mass function with redshift and metallicity

Receipt and verification

First computed	2026-07-05T06:46:24.744433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95bbca02570586768ce1a35f60c8c2d3bc6a717aa8fa7aa43a903e5277e5b4c4

Aliases

arxiv: 2308.16268 · arxiv_version: 2308.16268v1 · doi: 10.48550/arxiv.2308.16268 · pith_short_12: SW54UASXAWDH · pith_short_16: SW54UASXAWDHNDHB · pith_short_8: SW54UASX

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/SW54UASXAWDHNDHBUNPWBSGC2O \
  | 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: 95bbca02570586768ce1a35f60c8c2d3bc6a717aa8fa7aa43a903e5277e5b4c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b74fb358684d121b6de37bddd235b5ea07408d8f6802541430d939a14e5f4fe",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2023-08-30T18:57:53Z",
    "title_canon_sha256": "81b76ff998f0d7f7f1c71a7b586af687faec557bb31511d4ece9674bb2d082d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2308.16268",
    "kind": "arxiv",
    "version": 1
  }
}