Mikel Laboa Mancisidor (15 June 1934 – 1 December 2008)Muere a los 74 años Mikel Laboa, recuperador de la tradición musical vasca El País, retrieved 2008-12-12 was one of the Basque Country's most im
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 0x4b7f0d01e5dd4027e9359c59aa2fd0cdfd01d78db667ba5ce62fb9d56248b621. 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/036673ef-40db-4090-bfbd-67977c1be57f.json and https://artists.proofprofile.net/proofs/artist/036673ef-40db-4090-bfbd-67977c1be57f.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 0xdf6c31605e264268c063d6fb96cdca6dae156b75f1be91a99898d8e383389c76. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES5590602848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0921d67226696287bc9f42d38f0ba8be8baced49551cd4fb7a87925c1d3d47b. 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/ES5590601103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafe539f148d81dcfd8f4a01111ae6d71ce84d2381a5c12010361470da09eeb0. 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/ES5590601108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51508725adb9b56859d29daf6cb2e627ffc606ff0585d571bf3677c74ba6915. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:41:34Z), 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/ES5590600700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c5b8213f6a3609a512c4ec8315beec83d07cc1399dc3713a6d5945f45778d3. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ES5590600706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d661aa5aefa82752002d1a6b3e7f2cd2976159f8479363ae7138f91f224dfdc. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:01:58Z), 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/ES5590600708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f0c6f5cfb3c099019b8e9881e080127048f4d107cea72dfe17ac33590823fe. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/ES5590600710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1687222a448545262c7fe75662ccd2d9ef1a6e0246b13bf9f8d79a5a5b65e27a. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/ES5590601090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efc302676306e414aa5dbb763298ea9a4c00441e96dcebd60d09fa6999bcebd. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ES5590601092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13c58b4fc69b5d11cc3c43ac329d1f7190b1bffc9b274f1df4530aef5f76b55. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T05:06:24Z), 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/ES5590601095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5805036213142127a1fec6970d518f1dbefc2b8e2ffdd0d412c0675065391f0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/ES5590601096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bcb38d8b10ce92d979fce8d467a26db4f42a92171974a61700b4aec4067a4f. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/ES5590600715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bcbd9e757b83e5850d46aa671b14acb6e87e3360dc83b10f891f08edfabe16. 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/ES5590600717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026757f0e98d70ce67a3ac3849b2efeef0c41ef583043c4922c284f72f28470a. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:03:05Z), 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/ES5590600831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b93c1e4b3c9a07086bea1cca1d1880388c5df811c7b4d1230be46243fe56f79. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ES5590600837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955a9890a0c91e9e8d2738c92ebceb68ec4fbc23f179fe5b9232ce968622208a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ES5590600843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac21d1dcc5a1e80a16bb2b0c249839cecdc5da72bdde3135ad6d9d56db23c8d8. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:37:58Z), 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/ES5590500454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6403c19055201ebf7fb4deae1743f74eb2b4d721a6cf4dd35269cb9e33d59388. 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/ES5590500459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b418470b9e578950c83665f4372a956a1c4bbacab2c5fdebab3208a5f23f93. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/ES5590500466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa387809438c60ddacb27e84262f4592c2401b855c25968bc68de756da61ad845. 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/ES5590800900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31dee963067d29951dbd224fce7406a9732c4ea0c10718e38cea7be78ba10212. 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/ES5591000550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927d60e117ef00ded589e34f792f4fa65be12922e13d557b7655fcc87537c1d2. 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/ES5591000551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5297f6510461935fed756fad87da3c264f43bd6a1fd2e70af115723740f0ff. 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/ES5591000552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33fd8c844af8cb565198f581efa9a1d1e4679eee25314a30d0e88b8805e1185f. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ES5591000557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1b83b80572df0c9798b114447a16addd01c0b1aed96a916ab142019b53a0a2. 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/ES5591000561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd895724b8db7b8d2d617d7802679e25bed069a060c543f1c9e4b9916bc0d7ba5. 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/ES5591000562.
Black is Beltza II: Ainhoa (Soinu-Banda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b575964969b3a3ab374c34b69533bcc83c976b25b26bf845b555010668d74f9. 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/ES5591000586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd9d5a9ddf1a93447526c0ca3f172044a9ddd6828d62d6c89ff0ff2a0c0b796. 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/ES5590600722.