Pith Number

pith:BXUSWCE3

pith:2010:BXUSWCE3MMJFCWSB7DLZ3XY66P

not attested not anchored not stored refs pending

The hydrogen and helium lines of the symbiotic binary Z And during its brightening at the end of 2002

(2) Institute of Astronomy of the Russian Academy of Science), Bulgarian Academy of Science, D. V. Bisikalo (2) ((1) Institute of Astronomy, M. T. Tomova (1), National Astronomical Observatory Rozhen, N. A. Tomov (1)

arxiv:1002.1643 v1 · 2010-02-08 · 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	2026-05-18T02:09:11.265063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0de92b089b6312515a41f8d79ddf1ef3d6461d1606f3f9531997565a2103a1bd

Aliases

arxiv: 1002.1643 · arxiv_version: 1002.1643v1 · doi: 10.48550/arxiv.1002.1643 · pith_short_12: BXUSWCE3MMJF · pith_short_16: BXUSWCE3MMJFCWSB · pith_short_8: BXUSWCE3

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/BXUSWCE3MMJFCWSB7DLZ3XY66P \
  | 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: 0de92b089b6312515a41f8d79ddf1ef3d6461d1606f3f9531997565a2103a1bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b9b50a0ec6ac0da4ba46cb07b593dfb0472580643c66c3cdbe2e60bb5a09b9f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-02-08T16:18:13Z",
    "title_canon_sha256": "403633b7e2548abb9925af7a954021bdaa9d97856d1e315930da9bce0655d581"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.1643",
    "kind": "arxiv",
    "version": 1
  }
}