Pith Number

pith:HDDDPLQY

pith:2016:HDDDPLQYRXTMWFWPZHPYU6WNY3

not attested not anchored not stored refs pending

Multi-colour optical photometry of V404 Cygni in outburst

Josep Mart\'i, Mar\'ia T. Garc\'ia-Hern\'andez, Pedro L. Luque-Escamilla

arxiv:1601.01941 v1 · 2016-01-08 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HDDDPLQYRXTMWFWPZHPYU6WNY3}

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	2026-05-18T01:21:25.409262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38c637ae188de6cb16cfc9df8a7acdc6e23be1c1199cd1fda65cbdede201d55d

Aliases

arxiv: 1601.01941 · arxiv_version: 1601.01941v1 · doi: 10.48550/arxiv.1601.01941 · pith_short_12: HDDDPLQYRXTM · pith_short_16: HDDDPLQYRXTMWFWP · pith_short_8: HDDDPLQY

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/HDDDPLQYRXTMWFWPZHPYU6WNY3 \
  | 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: 38c637ae188de6cb16cfc9df8a7acdc6e23be1c1199cd1fda65cbdede201d55d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "846f6558db27765f20728576a7314038257d7a590d87287c16906b51e3193201",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-01-08T16:51:59Z",
    "title_canon_sha256": "ae8cda58c12779809ea52aa9429aa6bdffe2441459d24838e3864b394756f400"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.01941",
    "kind": "arxiv",
    "version": 1
  }
}