Pith Number

pith:Y42OTRRN

pith:2026:Y42OTRRNF4CNRGSPKZOCK2B3EA

not attested not anchored not stored refs pending

When will T Coronae Borealis next erupt as a nova? Constraints from recurrence, orbital phase, and accretion-state evolution

Qiang Li, Renzhi Su, Songpeng Pei, Taozhi Yang, Xiaoqin Ren, Xiaowan Zhang, Yongzhi Cai, Yu Liu, Ziwei Ou

arxiv:2607.15245 v1 · 2026-07-16 · 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{Y42OTRRNF4CNRGSPKZOCK2B3EA}

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	2026-07-17T01:22:16.446529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c734e9c62d2f04d89a4f565c25683b200b584a39b1ded20ae24313fa28d1768a

Aliases

arxiv: 2607.15245 · arxiv_version: 2607.15245v1 · doi: 10.48550/arxiv.2607.15245 · pith_short_12: Y42OTRRNF4CN · pith_short_16: Y42OTRRNF4CNRGSP · pith_short_8: Y42OTRRN

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/Y42OTRRNF4CNRGSPKZOCK2B3EA \
  | 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: c734e9c62d2f04d89a4f565c25683b200b584a39b1ded20ae24313fa28d1768a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "642b02c3ac315ada1a43451b93a98a34f1a5964f4d4a4e11d7c16235b0509806",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-07-16T17:44:08Z",
    "title_canon_sha256": "d9140549a7b4c10047d2340c024d2240c34337721c6e2faa3b08d4e8879f3b70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.15245",
    "kind": "arxiv",
    "version": 1
  }
}