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 0xec54a84a9c9abf060f0a7b29c4e7fcd286e2a94c0a9ad6f22318c11d1cb8b968. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb25d892-a70b-4434-b505-7d7912c911c6.json and https://artists.proofprofile.net/proofs/artist/cb25d892-a70b-4434-b505-7d7912c911c6.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 0x420de9f0b313cb25df14dace09aec4c99f2d4ff69c36d4e22c05af4499cd3fff. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/USA561030067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc551d3a993d355c60e7060f1dae761875673a295d0b8b451933cc36c02557e54. 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/USA561030069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21603842e9196f52b863607e7e915514ff8a83ba12c3015ae799e45ec18653cc. 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/ES18B1206302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f69e627a8ee88fb9790c7b3c9b40100ed3e6343f09984a38a54975325da9f0. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES18B1206310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181240401c9ba750a480ac7d6b43040c4110038614661904a8db02075b1f619f. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:19:39Z), 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/ES18B1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92ed5684cf892798238fc399449581f6dca4801b8a0d96c5b9fe32480a0ad8c. 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/ES18B1500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31918342e83501942f6718b3de08e07f668ec6515890dd90bd60e96317f129d3. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:22:57Z), 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/ES18B1500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022830470662cd0d529fa63aaa1512ef9c11cdb0bafdb0eaf996c754c726fe32. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/ES18B1500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0ef758d953b1f9f327b6c8eafddc35567c0777f017afe95360a0c9dbc2d1c8. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/ES18B1500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0429e226616f6d8a07cbb74a190bb04c44434a569eb2e720024e9bfa155cf3d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ES6671602248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19948207dc87a27f70756c2b68af04d40af0855f72364283cfbca8874c6f8a0d. 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/ES6671602250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694fa7e51ed7131a2c74217b66b00c24b10aabff2f8f618ee8420505c6082bfc. 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/ES6671602252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62d1cca25b44dd9db17b081e6e69efa1e4b1b8438a4df0d25485836e47643f8. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:22:16Z), 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/ES6671602253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2ac42b77e358ddcb4f8b65c065be128780a5a42c8d67c0629674d793077d51. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/ES6671602257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb124a3715a6472c51a917a45307e697b085a4cf3cbc4c6a2377a06c1834029. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/ES18B1701909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30aa09b33d537bc5f62fc319707b9afb125167e30c5faa94a374cc2d9fcdbb3d. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:07:33Z), 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/ES18B1701912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f568498263f003368b27ee906da0bcc369a8dd9205fb03ab6a5e54dc0bebbc. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T09:03:47Z), 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/ES18B1701913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdeb74bf01b613a1802e7b2113730a9443f415da4dc87d18c2dea5c5674334b. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/ES18B1701914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08628adff7988f6c0f285c189e9abb98de32d73da0bdab4f0b125f005d8d5b1. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:40:00Z), 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/ES18B1701915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8254d7f7612866f929b8618dc361ada4b61ae1ddc189861bb4eba735d9536824. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/ES18B1701916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7a0071a957d893b8a0987576405b743756d2c315f1434fe8caba60e6481dfb. 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/ES5301968483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d7c60ffc37be20a59304efe208de57f3fd68f82debb4da80e21fd769652e02. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/ES5301968484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c1703f57ed63abb1fab925e06aa01f7cd6d80bf65f28f6ab247d0f8e00c81d. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/ES5301968486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7542e387754d500c3b124c079209a65214f043226200de86a456ad6e884cbe7. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:05:16Z), 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/ES5301968487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e1582f3496fd544407f494b34b07a533578c7c85efeb612139b8f156f9fedd. 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/ES5301968489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469617987015022001376b2ac8627342ebc57e10474bdc42d205c5b4d341d770. 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/ES5301968491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d60ad5025bb0f7ffc15b7d87f5c5021f731d40a94d96ccbfa0a56063eee3ae. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:11:09Z), 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/ES5301968492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32d77f0a86ec542b9b7a6e9fa1b04346577dc1ef11d45d62805209493dcfedf. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES18B2102269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399ce5ad39c6511b4e3f10db62c52c522344e8a776727104dbdaa0a8fae2f9cf. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:32:41Z), 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/ES04D2400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15502fa0f3abf36ebd7ca21a183a91dccef3c819fcee261551184fb04aa59b26. 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/ES04D2400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd1b1ab5039d78b92112e92056f513e0acb95a897f0ccede1f9d086e3961894. 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/ES04D2400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5fc8867b3a9557a8ee4f427417da812ea77155244477c6a60972124c91cb5f. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:21:02Z), 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/ES04D2400029.
POPURRÍ DE AMOR: La herida de la amor / Sin ti no valgo nada / No me engañes no/ Candela Viva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffd9dbdbc581aba2e2633fa6956ba157de37857bd356fce1c21a546cb2e79df. 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/ES04D2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e09304b85631d71a06f033ef99bd5fb33feeadc8836534895abe77e18a39e9b. 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/ES04D2400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9005638a242e6ef4472362b7e47157ff461c0b7db36a41b52335281e9cb2ec2c. 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/ES04D2400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bc2d4efbdfa206eb05c15200e3001e9fb1312ec6723b1bfe826121779f2a66. 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/ES04D2400033.
POPURRÍ ROCIERO: Llegando la hora /Yo nunca llevé la virgen /Cuando se viene de vuelta /Ese que entre los pinos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2116f0191aaa118ec6da934f8351fa143a10e7ab3fe994d6fb4ddbad439088e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ES04D2400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb406dae92dd0fee2c2b8ec797e92fd5eafbc6a93279f4d8c9f9a955540f7ae86. 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/ES04D2400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e28a2ae50694594ba834204c32e87fb3127ffd418a96514f88e0a5837f6010. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/ES04D2400037.
Alabanzas Rocieras "las sevillanas rocieras que hicieron historia"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dec8e629088094ec816f91da5a6477689190f6fe3a4f0e79279661d84c22c4. 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/ES18B1600301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04b931886b7f0ec79d3f6c575bef7627fb4f5c36937d6a5577ded14f8948d9e. 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/ES5301252611.