Pith Number

pith:Q4G4GFZ3

pith:2017:Q4G4GFZ3SC7SOO3T5VLCK7KXLM

not attested not anchored not stored refs pending

New outburst of the symbiotic nova AG Peg after 165 years

A. Skopal, D. Boyd, F. Teyssier, J. Guarro, J. Montier, K. Graham, M. Fujii, M. Seker\'a\v{s}, M. Wolf, O. Garde, S. Yu. Shugarov, T. Lemoult, T. Lester, T. N. Tarasova, U. Sollecchia, V. Bouttard

arxiv:1705.00076 v1 · 2017-04-28 · astro-ph.SR

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	2026-05-18T00:38:53.203129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

870dc3173b90bf273b73ed56257d575b2ec7aaa30f25a5c330b114660a7c84be

Aliases

arxiv: 1705.00076 · arxiv_version: 1705.00076v1 · doi: 10.48550/arxiv.1705.00076 · pith_short_12: Q4G4GFZ3SC7S · pith_short_16: Q4G4GFZ3SC7SOO3T · pith_short_8: Q4G4GFZ3

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/Q4G4GFZ3SC7SOO3T5VLCK7KXLM \
  | 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: 870dc3173b90bf273b73ed56257d575b2ec7aaa30f25a5c330b114660a7c84be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45882098bc31a4400287c64e3912f59cf9f8a28dd550937c62d8c43403d07e75",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-04-28T21:10:00Z",
    "title_canon_sha256": "ca0b03e025474ce7e914add5421b74be0aad3ba09e621449814409a243bcce80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.00076",
    "kind": "arxiv",
    "version": 1
  }
}