ISRC ES5026800233
Verified recording
ES5026800233 is “Que Tiempo Tan Feliz (Those Were The Day)” by José Guardiola,
registered on the CopyrightChains blockchain with CopyrightID
0x2e3540c252b77900cdc2e1f384e920523b510c0d40063548f853d2434e8c2981 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5026800233.
Recording identifiers
- ISRC
- ES5026800233
- Title
- Que Tiempo Tan Feliz (Those Were The Day)
- Artist
- José Guardiola
- CopyrightID (CopyrightChains transaction hash)
0x2e3540c252b77900cdc2e1f384e920523b510c0d40063548f853d2434e8c2981
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:0e6907da5fd44d6cdd5458c10036f29d25284a8bb80c8da0ceea1ed900de496c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5026800233
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Que Tiempo Tan Feliz (Those Were The Day) · Machine-readable JSON-LD