Los Abuelos de la Nada were an Argentine rock band formed in Buenos Aires in 1967. The group underwent several incarnations throughout its history, with all of them led by its founder and frontman, si
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0ce2d6adf8b1c0d2091c840d9d72e3861f2e0cc862c1ed5b4afcd59d224cba. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96b22ce6-fe3f-4f94-8636-5c96ca912389.json and https://artists.proofprofile.net/proofs/artist/96b22ce6-fe3f-4f94-8636-5c96ca912389.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No Te Enamores Nunca De Aquel Marinero Bengalí - En Vivo
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7bb2cdc45e66f2d3d7434a89292dcbefe645031ed3a812bc3c3933406f96d4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF098500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda191dad309ccb7a3a5e224d1b67c92da58991318d963e84d75a7408ac55db0e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF098500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23badb56bd99a73c4bf73ba30983927e4f4db97a6295d614337edb02d342ed8b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF098500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4221937c0c90296659b0045788c124e49637ceecefea996dc77443e99ad610a8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF098500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736fef4e620dbb910ef0f51388fed9e6d1b5c488dfeca4334828a94e241aab5e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARF098300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53052df71ba5e87bb62ed60bdfb0870b8f5b773b1ef3d14cab8b28df81198a9. 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/ARF098500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cd7d53bfde2669ce9558d11260234d8fd33ea70f51f65328e6e2aa62f46e3c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF098200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08adb939ebaef82b1d16f92b12191ffe1159159fd13622047ffa0411734909fc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARUM72200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6867310d6dc03af04554fa0473cca1c898c7a1284136a6abf114bbdfabf68f3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF098300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad3a508279167bc9b3326a40693380f7422b93147e2e41afca1840d7ea2d7e6. 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/ARF098400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40af023b8f5738080183e8988ce8e50ce90129e96b96eb370e07fd8cd2941a1a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARF098700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127503fbf09834255fa828213726a00c3b9cf09a38422b7edbea5f680d2f9fb1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF098300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccaa9721c5cda858a74586fed3e16584002c229e8c7950957bd56a7bdc958bf. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARF098500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b96318baeea3420f82e1261a32410009179f6085bd54a092d19c625595b404. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARF098300093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736fef4e620dbb910ef0f51388fed9e6d1b5c488dfeca4334828a94e241aab5e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF098300013.