Pith Number

pith:PHRFZ2IV

pith:2021:PHRFZ2IV4IHVNPJ4RZORCEUKWQ

not attested not anchored not stored refs pending

Formation, diffusion and accreting pollution of DB white dwarfs

Chunhua Zhu, Guoliang Lv, Helei Liu, Zhaojun Wang

arxiv:2107.11946 v1 · 2021-07-26 · 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{PHRFZ2IV4IHVNPJ4RZORCEUKWQ}

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	2026-07-05T03:21:56.530616Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79e25ce915e20f56bd3c8e5d11128ab41887839b10058146c624a97698def137

Aliases

arxiv: 2107.11946 · arxiv_version: 2107.11946v1 · doi: 10.48550/arxiv.2107.11946 · pith_short_12: PHRFZ2IV4IHV · pith_short_16: PHRFZ2IV4IHVNPJ4 · pith_short_8: PHRFZ2IV

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/PHRFZ2IV4IHVNPJ4RZORCEUKWQ \
  | 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: 79e25ce915e20f56bd3c8e5d11128ab41887839b10058146c624a97698def137

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27c3968fb74f4de61e1abace5348aabefd7ee44669b177240fb3c30c6ab2198c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-07-26T03:52:16Z",
    "title_canon_sha256": "1f0e1bc41e50e3dc6bb18923d322077430a47c5a91541a1eac3919dd7f7daa82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.11946",
    "kind": "arxiv",
    "version": 1
  }
}