Pith Number

pith:PWCSYB5A

pith:2019:PWCSYB5A7ZV25LLYYKC2L3IQK2

not attested not anchored not stored refs pending

AT 2017fvz: a nova in the dwarf irregular galaxy NGC 6822

A. V. Filippenko, C. M. Copperwheat, J. C. Hestenes, K. L. Page, M. Henze, M. J. Darnley, M. W. Healy, P. A. James, S. C. Williams, W. Zheng

arxiv:1904.08151 v1 · 2019-04-17 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PWCSYB5A7ZV25LLYYKC2L3IQK2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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	2026-05-17T23:47:55.387787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d852c07a0fe6baead78c285a5ed10569c58efab02d257dbf46b77af792213a0

Aliases

arxiv: 1904.08151 · arxiv_version: 1904.08151v1 · doi: 10.48550/arxiv.1904.08151 · pith_short_12: PWCSYB5A7ZV2 · pith_short_16: PWCSYB5A7ZV25LLY · pith_short_8: PWCSYB5A

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/PWCSYB5A7ZV25LLYYKC2L3IQK2 \
  | 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: 7d852c07a0fe6baead78c285a5ed10569c58efab02d257dbf46b77af792213a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41e89a578b62f69cb2e0ef520bdc5a001a2479f59d70fac5ee20098e58e64c1b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-04-17T09:24:26Z",
    "title_canon_sha256": "bf1970a23420dff63c374ae4929db2ead05d401574045ec7b4cd1cc2d2aa380b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08151",
    "kind": "arxiv",
    "version": 1
  }
}