Pith Number

pith:5VXRR4K2

pith:2007:5VXRR4K2PXJ6MJYJHI7E2X5YSV

not attested not anchored not stored refs pending

Optical and infrared properties of V1647 Orionis during the 2003-2006 outburst. I The reflection nebula

2), (2) ESO), D. Fedele (1, M. E. van den Ancker (2), M. G. Petr-Gotzens (2), N. Ageorges (2), P. Rafanelli (1) ((1) Universita' di Padova

arxiv:0707.0672 v1 · 2007-07-04 · 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{5VXRR4K2PXJ6MJYJHI7E2X5YSV}

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	2026-07-04T17:04:33.776645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed6f18f15a7dd3e627093a3e4d5fb89555f81271ba9779d84ab3deee9775b24f

Aliases

arxiv: 0707.0672 · arxiv_version: 0707.0672v1 · doi: 10.48550/arxiv.0707.0672 · pith_short_12: 5VXRR4K2PXJ6 · pith_short_16: 5VXRR4K2PXJ6MJYJ · pith_short_8: 5VXRR4K2

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/5VXRR4K2PXJ6MJYJHI7E2X5YSV \
  | 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: ed6f18f15a7dd3e627093a3e4d5fb89555f81271ba9779d84ab3deee9775b24f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b92e43118baf763c0a59b851a5310f6e4ee84f0af0a176651f24880b976a860",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-07-04T17:41:13Z",
    "title_canon_sha256": "fa0b4aaadde3c5a11928cad911f7cbac51cc8373ed0886c5d826d73213d72a20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.0672",
    "kind": "arxiv",
    "version": 1
  }
}