Pith Number

pith:YUDUT5QO

pith:2018:YUDUT5QOVGDGFZRHI27VWJSJLO

not attested not anchored not stored refs pending

Spectroscopic and photometric observations of Symbiotic Nova PU Vul during 2009-2016

A. A. Tatarnikova, A. M. Tatarnikov, E. A. Kolotilov, M. A. Burlak, N. V. Metlova, S. Yu. Shugarov, T. N. Tarasova, V. I. Shenavrin

arxiv:1803.05739 v1 · 2018-03-15 · 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	2026-05-18T00:08:08.098173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c50749f60ea98662e62746bf5b26495bb8dec339c4c81979113373dfc2e792bf

Aliases

arxiv: 1803.05739 · arxiv_version: 1803.05739v1 · doi: 10.48550/arxiv.1803.05739 · pith_short_12: YUDUT5QOVGDG · pith_short_16: YUDUT5QOVGDGFZRH · pith_short_8: YUDUT5QO

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/YUDUT5QOVGDGFZRHI27VWJSJLO \
  | 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: c50749f60ea98662e62746bf5b26495bb8dec339c4c81979113373dfc2e792bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "597c0cba65ed2c2b46636fb466a3337b9b779a5a924452cb6fd1b3c632e50456",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-03-15T13:30:04Z",
    "title_canon_sha256": "52cf3fe454d1db1640515c84a03fbed52c715b74dd4cc8a72df5f6c3a01760b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.05739",
    "kind": "arxiv",
    "version": 1
  }
}