Los Caños may refer to: Los Caños de Meca, a village in the province of Cádiz, Spain Los Caños (band), musical group Mariana Grajales Airport, an airport in Guantánamo, Cuba originally known as Los C
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 0xb9135b7082affcc04eeabf69c1f63de264312aea4c57642f7e9eded790dd33f0. 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/ddd5c07a-691b-43cd-b5ec-f80848929241.json and https://artists.proofprofile.net/proofs/artist/ddd5c07a-691b-43cd-b5ec-f80848929241.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 0x9234a9bee9d2e086b3e136953fa7cf0ccfacaf56d5bf8d26856c235c353b11b6. 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/ES5990305101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259c0576826584ac3459fbcf349a0be96f6226875d439a38fbaecae277d63999. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES5990305102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a426ed18a4f0446caf3cf4d279c4e4cd8fa8a2e9e283074b471967c55e29a88. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES5990305103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd407b539cf39770655368478d1a87e13338c52417e498e0a22aeb4ff3551888. 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/ES5990305104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a097abb7f7cae01fdda0a21f62133b130dc0a80b3ca11f0c8a33e799226dfd4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES5990305105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f2e48e672ffbb74c0693a3e1447cdac684241ed9e5401dc0814ea54e692e8d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES5990305106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b6008329186f206bb77aef1a70680d9ac30759e1f4f77d4625253de0036f54. 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/ES5990305107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf049f3d77721b60939a6f70e45d853259e8d153d86de4a35c344793c8638b436. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/ES5990305108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79623b94a7f6310ecd0b4a2495c6805a16045adada229bc0bfa2bc6cb41ca8b9. 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/ES5990305109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8386a2557941720d216ebeab5c7a0eb17901404458604d37cb52bc7f7d6ccd5e. 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/ES5990305112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de40c52f70517de6944ad2ecda394934cbe826be6d1a017b2d3b0ee463f4fec. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES5990305113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece0218a219c9b6a22cb612d3e1390f458aa37f17e54bda3b7b2a89660a07a78. 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/ES5990237001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1396b874a33b2efae7372052d29c6ff5e15ab05eed930d7faf054b5b4e72c804. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES5990237002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e3907a8e1db7b98f29e39150c251a0d789356e44019bb6cd86d4d99b35224d. 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/ES5990237003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204007d736c410acc592fae7f39236fe5faa682b7bfbe6ccde9bc7caeb14c1bc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES5990237006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3385753051b04349a4164b176903d88cd8231d5a6a231ca8af4b25294f88dc4. 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/ES5990237012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66bf8707fcae9037f8ef00a8b51ddac430bfae6f7af61d83bcb567426f0ec77. 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/USV351410513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e50b55b5d811b32484d1c812665225863389ab87bda84dcbbf6d82d67482902. 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/USV351410514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d32d42b1f3430fe8ed830b2ad216f23530779c49a0b406c51558a12234015f. 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/USV351410515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20964779086d072713175531e9b3a7a1e6cf6242c20c78a5a183c45571f95dcb. 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/USV351410516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179a4f5e67b99275211ed26f0cb80df66a9d85ce8af4b7112eefa723c706c2f9. 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/USV351410517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63ca55f11ff4b433c51215629f168fee60a04f80021a849db7fff14b40e109f. 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/USV351410518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeba6dc441b3e23656ae35602318432698120db25f833dbe653b6e0d7b29208d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USV351410519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82244f0464d02c328ba389661d52749c05d11cad463f050551f2196b6e6bc453. 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/USV351410520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d947f3918aa9365d9e9947545909c2367243d114096728c80f3508b236efc9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USV351410521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d3b30fb919fb2f3af38a3b07e378e6791aaa91d0b9654ab858870979876046. 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/USV351410522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee659c221885a5b6c18844f2e8965d81fa00e6b503ff43b0be6394f5b76139f. 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/QMDA62162418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039d5309f48c9d7f1e8453ec1cc6cff2ec33af58219d7142564ddd5967da5390. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES5991201209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179a4f5e67b99275211ed26f0cb80df66a9d85ce8af4b7112eefa723c706c2f9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-22T01:29:10Z), 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/USV351410517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece0218a219c9b6a22cb612d3e1390f458aa37f17e54bda3b7b2a89660a07a78. 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/ES5990237001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1396b874a33b2efae7372052d29c6ff5e15ab05eed930d7faf054b5b4e72c804. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES5990237002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e3907a8e1db7b98f29e39150c251a0d789356e44019bb6cd86d4d99b35224d. 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/ES5990237003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d6e1740fde4bcb351a54b4ea44fefa9575663c6fd0889c1ef0b53b1a011a06. 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/ES5990237005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204007d736c410acc592fae7f39236fe5faa682b7bfbe6ccde9bc7caeb14c1bc. 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/ES5990237006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb177d9cc50417c7564526c1b58211fc27e89d30e1bd375af1c0a426520c0e39f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ES5990237009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad5d130d5c707efbd04106082c7aaa0f3854302cc31fffb14ddb413f7ba3097. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES5990237011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3385753051b04349a4164b176903d88cd8231d5a6a231ca8af4b25294f88dc4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES5990237012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc62775391e219190fd9e851f490b092aa63b94245cefdebad58109eea72ef1. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/ES5990237013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5579d7b7cc62d5a0aa0dbde9b691ee3fb86e9c1675b39b1c1693c677e4baa1. 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/USA2P2521610.