Pith Number

pith:VPWQHT4E

pith:2016:VPWQHT4EX63B2U4KW7W4JP3HTJ

not attested not anchored not stored refs pending

Radial pulsation as a function of hydrogen abundance

C.S. Jeffery, H. Saio

arxiv:1602.04964 v1 · 2016-02-16 · 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{VPWQHT4EX63B2U4KW7W4JP3HTJ}

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	2026-05-18T01:19:24.311776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abed03cf84bfb61d538ab7edc4bf679a7856e13cec13ac7210f42071c0550cd2

Aliases

arxiv: 1602.04964 · arxiv_version: 1602.04964v1 · doi: 10.48550/arxiv.1602.04964 · pith_short_12: VPWQHT4EX63B · pith_short_16: VPWQHT4EX63B2U4K · pith_short_8: VPWQHT4E

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/VPWQHT4EX63B2U4KW7W4JP3HTJ \
  | 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: abed03cf84bfb61d538ab7edc4bf679a7856e13cec13ac7210f42071c0550cd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21d5d1f204411de0eb86a8207518db2e6edd380b2d6777454b9fbe27b42da7b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-02-16T09:51:45Z",
    "title_canon_sha256": "3b93fb630dfa2b2d3f6870e835f326f61f9e7d62c75a47a09a69cb5f5dac6ebc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.04964",
    "kind": "arxiv",
    "version": 1
  }
}