Pith Number

pith:XWQPYHPK

pith:2021:XWQPYHPK3G24R5BUDLMFVKFTSN

not attested not anchored not stored refs pending

Extreme Variability of the V488 Persei Debris Disk

Andras Gaspar, Carl Melis, G. H. Rieke, K. Y. L. Su

arxiv:2108.02901 v1 · 2021-08-06 · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XWQPYHPK3G24R5BUDLMFVKFTSN}

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	2026-07-05T03:17:57.644731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bda0fc1dead9b5c8f4341ad85aa8b3936cf68922d26144a4a6a8d6cac81750cb

Aliases

arxiv: 2108.02901 · arxiv_version: 2108.02901v1 · doi: 10.48550/arxiv.2108.02901 · pith_short_12: XWQPYHPK3G24 · pith_short_16: XWQPYHPK3G24R5BU · pith_short_8: XWQPYHPK

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/XWQPYHPK3G24R5BUDLMFVKFTSN \
  | 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: bda0fc1dead9b5c8f4341ad85aa8b3936cf68922d26144a4a6a8d6cac81750cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5af677fab3ff86c51ee4d9f8358eccedbc913e16b40f43649a3e56aff4873f86",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-08-06T00:37:35Z",
    "title_canon_sha256": "c79820b6b5abe886b3e4ba8ffeb6b70f4da844126dc5679a8c81c75f4d439e70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.02901",
    "kind": "arxiv",
    "version": 1
  }
}