Pith Number

pith:F2AGUGVN

pith:2013:F2AGUGVN6IXERE3YYCV3YT5REK

not attested not anchored not stored refs pending

17P/Holmes: Contrast in activity between before and after the 2007 outburst

Daisuke Kuroda, Dhanraj S. Warjurkar, Hiroki Akisawa, Jeonghyun Pyo, Ji-Beom Ham, Jun-ichi Watanabe, Jun Takahashi, Makoto Sakamoto, Masateru Ishiguro, Shin-ya Narusawa, Takafumi Ootsubo, Yoonyoung Kim

arxiv:1309.4493 v1 · 2013-09-17 · astro-ph.EP

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

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	2026-05-18T01:47:36.133441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e806a1aadf22e489378c0abbc4fb122bfaaf5be4e62061f1472b3fd67de4a55

Aliases

arxiv: 1309.4493 · arxiv_version: 1309.4493v1 · doi: 10.48550/arxiv.1309.4493 · pith_short_12: F2AGUGVN6IXE · pith_short_16: F2AGUGVN6IXERE3Y · pith_short_8: F2AGUGVN

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/F2AGUGVN6IXERE3YYCV3YT5REK \
  | 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: 2e806a1aadf22e489378c0abbc4fb122bfaaf5be4e62061f1472b3fd67de4a55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25a7322d58c5266abb62113b7ce117d862ec10381fae1219e70d47be190a1b69",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2013-09-17T22:24:50Z",
    "title_canon_sha256": "323e7c96569516902fe484b40aaeec5cfa897c5097b48407a62838f84d33876f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4493",
    "kind": "arxiv",
    "version": 1
  }
}