Los Ronaldos was a Spanish rock band led by Coque Malla, emerged in Madrid in 1985 and active until 1998. However, in 2007 they met again for the release of the EP 4 Canciones, and later toured, recor
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 0x0c0687dc14e19fa402d486134baf6dd9efbbc158eaffdcf02a748ed8562e55e6. 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/a3a1760d-dcbe-4025-ae2f-a6e327b1b656.json and https://artists.proofprofile.net/proofs/artist/a3a1760d-dcbe-4025-ae2f-a6e327b1b656.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x3a392d97510d5de8d21b073091d435f79d0c1a9698a201a098cf0e1aa903651e. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/ES5089604476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61042aff8f93608302c70e078dcc6196dc9fde8192e8461905d95a0adaad61a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:11:21Z), 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/ES5088704482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2a81e9978cd8a2994481022f55ea28268721fd8eecf71bbcf93164cf89a55d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES5088704483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0a9f1a27295db6d667784aebcc91ff8839d7fb978096ff2c0d30115ea0903a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:16:54Z), 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/ES5088804493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a876ea6ad764dd06e32f5e074e38258125b173b9bb6d648d0caa60f697ff3a. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/ES5088804539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3995db88d9e6029dd34586ab6a7663b4377130933558f2deaf0d57ae0266d8e6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES5088804495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be9f404d0cfa06003f926c7933d7bead909886d431cb723c89bd72ee0cb02ad. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ES5088804498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf856fb52e8030b2fada6a918223a1189e3718dc4513f26bf29bd3c5b4db67a69. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ES5151500865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9423e51ae02875c15e5f8bae271dea02dbb4e9cac0c9d9fd547b12b960094a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ES5151500866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3efd8f846423806009d10628c1391056cd95d311dd643d8e044175241b14b3. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/ES5151500867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389b488c7c45949ab8821ce6273eb7419369321dfb89d5d460f44ffa3c445767. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:02:09Z), 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/ES5151500902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f96965bbd7cfb0474c208a9068a674bbb190b3ec4b0ac8dfbd9f2a07a94966. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/ES5151500908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8dfa2db72b4036fbb66af0fac0198ea937704f97ff4301e68ca215e4a99c01. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/ES5151500931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a67e0505a5e5d30123863cc9a5a7b1ec96072437c84d695c184fcc41c62348d. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/ES5151500936.
Quiero que estemos cerca (En directo en Cinearte 20 marzo 1996)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7cc081c53cde93fd2e64823d618ae095a3279b9f7f856b6efa38f0ae48ae39. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ES5089604472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7be99430f0af3d286b88b57e50260d85c7bf0bbc09ca5eb9db489ef16c0d052. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:58:35Z), 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/ES5089604460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7be99430f0af3d286b88b57e50260d85c7bf0bbc09ca5eb9db489ef16c0d052. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ES5089604460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295af26b54e7fc3e283b8a830d17db252d2a47e6186544492c613e8debc5bb55. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES5089604464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8e8775895f7ae65b466dcebf797e3f1fe4a962edbcf7cec81bf4f73c4a9065. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES5150800085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d1f20c204881895c53ee07c3f9084802e52106a96b5c88f28a3675164ab74a. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ES5150800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf3d3564b0d11c70f3ee570ea0ed1c03e77f40060742c58f673f5a30e9647e1. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/ES5088704489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a138f516913a03f79ae43d8a9276b0cdf8590eb05b1c7ff60d262ce2855669. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/ES5088704490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c074d3fd52f2e37390314df53f8d8c594fe146d237b30423efc9c98e486f54. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:46:23Z), 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/ES5151701593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a0f98f52110efed460d109a627f350c148b8d63bedd57404dde17eff1f18f8. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ES5151701597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe307e6a6cc8d4b8e6fcf322aaeb3b27ca7055037cc07b592bbe7aefb868f861c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ES5151701601.
Las 100 mejores canciones del Pop Español, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295af26b54e7fc3e283b8a830d17db252d2a47e6186544492c613e8debc5bb55. 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/ES5089604464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c2b85bdfdebbbeeeb0d4bccafa4528779263ae7b61e63b812a1906b99479be. 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/ES5089604473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a908bf6c49114ba4a453ec8e04d092ab427cb88ab541f5598acd2170ae4c21. 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/ES5150800090.