Pith Number

pith:SU47ALEM

pith:2015:SU47ALEM42KIUBRGRIH4QLFV6W

not attested not anchored not stored refs pending

Transient accretion disc-like envelope in the symbiotic binary BF Cygni during its 2006 - 2015 optical outburst

(2) Institute of Astronomy of the Russian Academy of Sciences, Bulgaria, Bulgarian Academy of Sciences, D. V. Bisikalo (2) ((1) Institute of Astronomy, Moscow, M. T. Tomova (1), National Astronomical Observatory, N. A. Tomov (1), Russia), Smolyan

arxiv:1508.06233 v1 · 2015-08-25 · 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	2026-05-18T01:31:31.191559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9539f02c8ce6948a06268a0fc82cb5f5adb0766732eca80391b6a7a3cbf5e884

Aliases

arxiv: 1508.06233 · arxiv_version: 1508.06233v1 · doi: 10.48550/arxiv.1508.06233 · pith_short_12: SU47ALEM42KI · pith_short_16: SU47ALEM42KIUBRG · pith_short_8: SU47ALEM

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/SU47ALEM42KIUBRGRIH4QLFV6W \
  | 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: 9539f02c8ce6948a06268a0fc82cb5f5adb0766732eca80391b6a7a3cbf5e884

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3812e3e0a8a9c66146ea85143f2582e802f42626cc8e835ad7cf1ce7f37b5f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-08-25T17:49:02Z",
    "title_canon_sha256": "a5ac24de4d7c50ac13ffde2838244e6ae86b8fec5af385f6bb0399c6e41a77b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.06233",
    "kind": "arxiv",
    "version": 1
  }
}