Celso Albelo (born 17 November 1976) is a Spanish operatic tenor. He has sung leading roles in many opera houses including Teatro alla Scala (Milan), the Royal Opera House (London), Teatro La Fenice (
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f89c9cd0ca6fe3911e8006841af9c0bbc4be6836f702e81460323157f28509. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/956db532-6625-4a73-9567-13081d67d2d2.json and https://artists.proofprofile.net/proofs/artist/956db532-6625-4a73-9567-13081d67d2d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ines di Castro: "Cari giorni" (Romanza der Ines)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ca6958c8c7a06476ceeeec4e5be3a75aa89f73f2139f45515ed0560488e869. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0600750.
El poeta calculista: "Yo que soy contrabandista"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e542e1b7278b84e677d74d611d3ec8d7ceb1cdf46585144ec3c01c06cf4a9c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0644150.
La sonnambula / Act 2: "Ah, non credea mirarti"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4abb96eee052f8d8e500e5a140571693860f482e68642827dfadb75912ec77e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0644160.
La sonnambula / Act 2: "Ah, non giunge uman pensiero"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bd457f89ba843e8483d3d59ecd587a2119a23e30709785872921d63b20dca8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0644170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ee9078e5d5f629ba6e8f94dbb7a58759474e99ab8d32309694c4a20711abc4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0644180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb250d0dde775de980b5d25f561ec61e22082e6e5cba364d09c3da67baf5efa45. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0644200.
"Dopo tante e tante pene" (After Rossini's "Tancredi")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0064551a161092d301297cdb3d66a19a26606eb9563e7e49399e9f764b234fdc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0644210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524fd4eed2fce5d38f07807dbead10e089f167789dca9ab6015886d76e248a36. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0644240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a40ef8fd2a8a90b7e26541db25ae7d6cc53121efe32f6dd23e24a98ad2264f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0644270.
Il barbiere di Siviglia / Act 1: "Una voce poco fa"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd086f8c526e082a0b5bdad65edf567d3546c93ab3059bba302ed31b856c9a4a7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0644290.
Norma, Act I: Casta Diva (Critical Ed. Maurizio Biondi and Riccardo Minasi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977b45f530f63ed71289c3bfedd6dc61e1ade4a7c233442235fa3ba62ee46108. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071340108.
La Cenerentola, Act II: Nacqui all'affanno e al pianto
Orchestra del Teatro Comunale di Bologna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096b44f6fdb4646d8af90d9ab34c8b1ea5ad7996f2c8fd1e931ac443177a5ab0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2201450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f256b77d0813209b9c89cd384198446c0892e624b66b06a09d70a5f1937c87b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2201451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ca6958c8c7a06476ceeeec4e5be3a75aa89f73f2139f45515ed0560488e869. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0600750.
Orchestra Sinfonica di Milano Giuseppe Verdi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a928432970c635315a3c29b9e57f01280e9d41dac82d9a3103e7772ca02eb96. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2201452.
L'elisir d'amore, Act I: Chiedi all'aura
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7f528ae04d2bdf79c5de4ec4066315a50b60312d4be4742966a0f11b84f6e4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2201453.
Norma, Act II: Mira, O Norma (Critical Ed. Maurizio Biondi and Riccardo Minasi) - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3d8c9a2b5e74159a74235d3bd3b8f4a7f9cd78892b7e28adda00c8a02cd18b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2201454.
Norma, Act II: Si, fino all’ore estreme (Critical Ed. Maurizio Biondi and Riccardo Minasi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca967b3fa108f8b8a9361a88a14293471558bec94396517247511f752b785b8d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071340126.
La sonnambula, Act I: Prendi: l'anel ti dono - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788a9b21e54a8b0e25a2728c1ab39974101a38654b84cb03d5e93eb363f0d6a8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2201526.
Il turco in Italia, Act I: Ed osate… (Critical Ed. Margaret Bent) - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb340397c22a24e1eac2264185e2a39fa7caadb4371d100623079c493ada734e3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2201457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5ad1712db07ffe8a3672a70503bd68ecef412c15ad60890230fce21f12a687. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079643502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839c581ff2f2ad77efe38924eb0b76d00714d1397caa08ddfbbf3f50324b2077. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079643520.
Le nozze di Figaro, K. 492, Act II: Voi che sapete
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca5506bd8adc49115dfc23afdffcae446dbd1c31804d55a0073e4e413a5dace. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059430527.
La clemenza di Tito: Se mai senti spirarti sul volto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51039e1441b319dcfeb8309c5d076c57e8923df76456a270105459c6c324a9ff. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36624a23975b179a65edbf13cc062130d5390af7f4b256f5799cfa71934e3c35. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0941210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5267dacc9b298a0217c59c2fa814e7516b93a61487fe37a79314f1bb6054b7f1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2201136.
Orchestra Filarmonica Alérnitana Giuseppe Verdi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f653f27d9145990b095e24e6fccd516b498b76dabf5cd2ce4b4ef9d5738568. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331214042.