Mundaka () is a town and municipality located in the province of Biscay, in the autonomous community of Basque Country, in northern Spain. Mundaka is internationally renowned for the surfing community
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 0x4b3d6dd2a987f7a0a73351ef49fa478df495cfb26ee2117fb8fe786ca9ff9348. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bfe7efb6-2b8c-4850-b967-2ffe6d197ce2.json and https://artists.proofprofile.net/proofs/artist/bfe7efb6-2b8c-4850-b967-2ffe6d197ce2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Surfeando en la arena bajo el sol a 34 grados
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 0xdbd13da03774555a508a1a89bdb70f8610328ce8d6583313fb99adfc9e8a0dff. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/PEBQ91400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f973d8e58a3d0aa9ed8b152a8cfee02e8ba57ac3ecf0cc2c46d5b4f24287c8a. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:21:50Z), 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/ES71G1608285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3ebbc2904eac35d5deb649c267c2328bf97e18646ba49c46cb3463e131a27f. 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/ES71G1608286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2854c0efc992d49a94909257dec741e88febcb750695d08577ddb85546be96f6. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:56:01Z), 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/ES71G1608287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0acf670b261729082c02f53f53de3981976bea0ead171699c892e0320210f49. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/ES71G1608289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ed8fb24eaa76d7dd68b42098855b94ca0f25c972f4ad1edfc4c0e1cd8a2b5f. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/ES71G1608290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf61d9f0e8ba989288ee7234612a31f7335ba99c154917f72a91cc280bf26111. 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/ES71G1608291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93de03c6521647a335d2b0fde2589c14023b2b98323781f3ddaab24ce306481. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:03:08Z), 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/ES71G1854960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865f5f976a413d51e4a3239cd800a06e2126d649f937f07ad19cae8ceb96c447. 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/ES71G1854959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765aae8340adb06ae209a79dc11b5cd095a15cc8500a8f0441e093c12bcc94dc. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:10:11Z), 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/ES71G1854962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7f21c21ff73ccb7216b0b80aed46d884895b93c75d7dc138cef248d390558b. 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/ES71G1908313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c0ba3bf551a4a9352fa371caa4c2c97749bcae79cf0d16765d1de5010e97c3. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:20:03Z), 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/ES71G1926029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219b3219a15cc15af51c436174ea5e7cf4d69ed97d486607c1492ec953195940. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/ES71G1932316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe866971fdd560b4ae9784130e0568b0d95a2c9eab1fe36a3ef3512e7b0500b3c. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/ES71G1926028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36a589573065e8a76786f2f2e265c9403dc9623acf6644478cc6e91749e41d0. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:41:33Z), 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/ES71G2319155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde16412214d45f2d28bd937c76dcc534828193a8450e4a956f57ab21dbf990bd. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/ES71G2400245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e85fcc4f9e77bcf8368d309001c8474aa1f4732cba96706fa06a085343698b2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ES71G2416449.
Sesiones Betamax: Mundaka, Vol.2 (En Vivo)