Pith Number

pith:DQR22U47

pith:2012:DQR22U47WXSYZZBULKB2SDDDZY

not attested not anchored not stored refs pending

Observational Constraints on the Degenerate Mass-Radius Relation

J. B. Holberg, M. A. Barstow, T. D. Oswalt

arxiv:1201.3822 v1 · 2012-01-18 · 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{DQR22U47WXSYZZBULKB2SDDDZY}

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	2026-05-18T01:58:47.312590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c23ad539fb5e58ce4345a83a90c63ce21a025108aad08afdbeafd1ee0ae2f64

Aliases

arxiv: 1201.3822 · arxiv_version: 1201.3822v1 · doi: 10.48550/arxiv.1201.3822 · pith_short_12: DQR22U47WXSY · pith_short_16: DQR22U47WXSYZZBU · pith_short_8: DQR22U47

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/DQR22U47WXSYZZBULKB2SDDDZY \
  | 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: 1c23ad539fb5e58ce4345a83a90c63ce21a025108aad08afdbeafd1ee0ae2f64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95a0e2074a1da098e645997b29163befa53ced8458ca1ae194d4fc65b06f40b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-18T15:20:15Z",
    "title_canon_sha256": "ed967e4b2e9f6f36650c744ea21ebac468533966181b44d4a821d43c4ccf6445"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3822",
    "kind": "arxiv",
    "version": 1
  }
}