Los Nikis is a Spanish pop-punk group emerged from the 1980s associated to la Movida. They've been nicknamed "The Ramones from Algete" with songs that feature very simple music and humorous lyrics and
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 0xbcafe436c775db77c5e68f961db6fd83732fdc14fb6674c6c1697c3fe33163b3. 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/d704b064-f739-4aff-bf07-4947efa5ec45.json and https://artists.proofprofile.net/proofs/artist/d704b064-f739-4aff-bf07-4947efa5ec45.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 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 0x4038662b4167daa1a154dc8e06651492c42fdae0405e0a7e90c2f82aeafb3968. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/ES5338200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb195214ef5a4703b31741aa7559550f67baa82869d433e4083280f1a541cd5. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/ES5338200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c9bfe35c3a8d93ee460f9ada31eadfed8ce988e09630083a938c32363e67cf. 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/ES5338200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6f01a9c8e7f2205626d1e3fc004e15a97cb7fa0dbb6ee3161c3af2352c355e. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/ES5018534012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb570f20a0cfc1b1eceeb4f026301ebf092774da6976a23bcf158f9bd7ddc154c. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/ES5018534013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96535beccde1a173b7a18b28278362e907b61028232747aa02e021e6119fd1c9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES5018534014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7c7c1fe5e69470414b807169a00f4a40daaf0201c2a186b6492b7c69d01466. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ES5018534015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89a673e6353ff56a06f3cf04c8f3a9fda2454c2cfd860cfd6a7dd72ef9b66f8. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/ES5018534016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391e7a273c1e244fd1ba1bdd85d8dc3c527b6197becd9a7e75c5d2123a1a59ff. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/ES5018534000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5e147c2571448972624c7261af4648ad0a83f4afb2e20694b640187b35dd84. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES5018734001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa59b0e228529635dc91be447acf38fbff133ecf483f0adf679e80ba595e16a. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/ES5018734005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb410522aedefe55c87666aa80fd325749914f320de08232d711d22919e05843e. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/ES5018734000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaff72378b2619b720b40f09febd00bea38465f868f972af26db636e0ddd3a7e. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/ES5018734006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c86cefe3f472fd6c997634e6edb25097b94d5d74d8b066d92d14746ad38324. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES5018934004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc095e6b4c452695ea3a70df8e2476edfb78d21dd6b5fc5e78325e40916525e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES5018934000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cce1a09107969a3d60b49daf168d645412e9f8c3b1104ccaf2e98fbd176b50. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES5018934002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1a2b2b0c4f8853c04a7dddaad0e32de70cde70e517da4288ec77589fc2cf15. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ES5018934011.
Los Nikis contraatacan. Todas sus grabaciones de estudio de los Siglos XX y XXI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fd54f49854db516942c16db896fd4ca29761e9210bfca96f3e919b47be64b5. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/ES5151900782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41afde46ca6c8f5faea4fa6e9cc42984d11b513469678a0249a1ebd1a170af2b. 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/ES5151900890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3f69690a88187beadedc53bc14b1f8532c5811eda24b9ac750d609f3086d8c. 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/ES5151900892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87293048ea2fee1970c5b2b92aa32e5ede62d2fb3a6f3f1d1aaa04cb3455706d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES5151900899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96f4e9045fdfec57bb50df65796cfc141ca3025c52fef2bcf2814876566c313. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES5151900784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d12aa4c65a9390b0fe74e1253740346d2e2b6219a54e12f7096c3bc4d0eaa5. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/ES5151900798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3270ae6b4ce70b9f912ae091e9e987c13725172f1850f98359f3a762ece07dd. 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/ES5018534008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3aef25b73fe08ea99c56da3a4338d9b89c6b55bb94ea36c21625ad75c2201d. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/ES5018534005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5e147c2571448972624c7261af4648ad0a83f4afb2e20694b640187b35dd84. 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/ES5018734001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3270ae6b4ce70b9f912ae091e9e987c13725172f1850f98359f3a762ece07dd. 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/ES5018534008.