Pith Number

pith:6FMZQJLD

pith:2011:6FMZQJLDDYE4LLMHT65CJNYOVZ

not attested not anchored not stored refs pending

High-resolution observations of two OVI absorbers at z=2 towards PKS 1448-232

C.Fechner, N.Draganova, P.Richter

arxiv:1110.4515 v1 · 2011-10-20 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6FMZQJLDDYE4LLMHT65CJNYOVZ}

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	2026-05-18T02:00:07.927799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1599825631e09c5ad879fba24b70eae7d220734287e29c0ac4a2b5f64a2d37e

Aliases

arxiv: 1110.4515 · arxiv_version: 1110.4515v1 · doi: 10.48550/arxiv.1110.4515 · pith_short_12: 6FMZQJLDDYE4 · pith_short_16: 6FMZQJLDDYE4LLMH · pith_short_8: 6FMZQJLD

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/6FMZQJLDDYE4LLMHT65CJNYOVZ \
  | 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: f1599825631e09c5ad879fba24b70eae7d220734287e29c0ac4a2b5f64a2d37e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1aedd0f2312d0fbff18963eb45b7e2d09742f91c6165d9aad81d18f8bafc795",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-10-20T12:57:47Z",
    "title_canon_sha256": "97bbaad4fa03d74669bc6a270fbec65cf7e415367c1f337e520d9199bc4a054f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.4515",
    "kind": "arxiv",
    "version": 1
  }
}