Pith Number

pith:7F2WMDMV

pith:2008:7F2WMDMVKVRQZVT3QHEEYRMR45

not attested not anchored not stored refs pending

A Unified Framework for Photometric Redshifts

Tamas Budavari

arxiv:0811.2600 v2 · 2008-11-16 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7F2WMDMVKVRQZVT3QHEEYRMR45}

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	2026-05-18T04:29:25.037522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f975660d9555630cd67b81c84c4591e74204159d6d1b277a22488abc960c3c79

Aliases

arxiv: 0811.2600 · arxiv_version: 0811.2600v2 · doi: 10.48550/arxiv.0811.2600 · pith_short_12: 7F2WMDMVKVRQ · pith_short_16: 7F2WMDMVKVRQZVT3 · pith_short_8: 7F2WMDMV

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/7F2WMDMVKVRQZVT3QHEEYRMR45 \
  | 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: f975660d9555630cd67b81c84c4591e74204159d6d1b277a22488abc960c3c79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf4e5f81caa9f511c0dec87cf88bc7a5a8dda96c4671336ce3b0ca2c5c0194e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-16T20:07:10Z",
    "title_canon_sha256": "09e37c68c7908ee9aa5aef356359cd13ddae20ce61fe76dca67de353bc7cbd7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.2600",
    "kind": "arxiv",
    "version": 2
  }
}