Pith Number

pith:FIREB23E

pith:2014:FIREB23EUS74I2AECUZ5CT7CQO

not attested not anchored not stored refs pending

A new photopolymer based VPHG for astronomy: The case of SN 2013fj

A. Bianco, A. Zanutta, E Giro, L. Tomasella, M. Landoni, S. Benetti

arxiv:1402.0015 v1 · 2014-01-31 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FIREB23EUS74I2AECUZ5CT7CQO}

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	2026-05-18T01:44:53.832155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a2240eb64a4bfc468041533d14fe283b11220219d5d5d6ef17774d88909b760

Aliases

arxiv: 1402.0015 · arxiv_version: 1402.0015v1 · doi: 10.48550/arxiv.1402.0015 · pith_short_12: FIREB23EUS74 · pith_short_16: FIREB23EUS74I2AE · pith_short_8: FIREB23E

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/FIREB23EUS74I2AECUZ5CT7CQO \
  | 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: 2a2240eb64a4bfc468041533d14fe283b11220219d5d5d6ef17774d88909b760

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "033d38f3fbc384e6bcdc4af75668754efc8f806ee144d52c95c18cc84cd23e79",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-01-31T21:45:14Z",
    "title_canon_sha256": "87155898ce0c68ad74b889190ecadeb5b17749f8289704d8a7056e28d2776726"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.0015",
    "kind": "arxiv",
    "version": 1
  }
}