Pith Number

pith:CU2JGZZD

pith:2025:CU2JGZZDPP5B3EQ6WVRWRDWXIX

not attested not anchored not stored refs pending

Thirty-five years of timing of M53A with Arecibo and FAST

Baoda Li, Cristina Pallanca, Haiyan Zhang, Lei Qian, Mario Cadelano, P. C. C. Freire, Shuo Cao, Yujie Lian, Zhichen Pan

arxiv:2502.02042 v1 · 2025-02-04 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CU2JGZZDPP5B3EQ6WVRWRDWXIX}

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	2026-07-05T10:09:22.720783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15349367237bfa1d921eb563688ed745c77963c0b60b1b7c4400e27fac0a1008

Aliases

arxiv: 2502.02042 · arxiv_version: 2502.02042v1 · doi: 10.48550/arxiv.2502.02042 · pith_short_12: CU2JGZZDPP5B · pith_short_16: CU2JGZZDPP5B3EQ6 · pith_short_8: CU2JGZZD

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/CU2JGZZDPP5B3EQ6WVRWRDWXIX \
  | 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: 15349367237bfa1d921eb563688ed745c77963c0b60b1b7c4400e27fac0a1008

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e56aa89612e5818d58a6ce285763972eb094a036c3b27458d9715da4209c339",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-02-04T06:21:06Z",
    "title_canon_sha256": "698a689ab2b6a9433dd3f418c1a85008171f69b68625e6f2a8e301010f895c6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.02042",
    "kind": "arxiv",
    "version": 1
  }
}