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 0xd45ac703c1ff9eb9741017962aca6f42ba371df1cc5afcd5cc0936e731cc2f0d. 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/15122845-5d03-4713-977b-69d8bb30638d.json and https://artists.proofprofile.net/proofs/artist/15122845-5d03-4713-977b-69d8bb30638d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Este Es Nuestro Tiempo 1986-1991 (Remasterizado)
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 0x7419c69772c2d8a6a3ac1f411165b8389851fff5d901d146b40b07b35b185c0a. 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/ES5021501100.
Cuando Pierdo el Equilibrio - Remasterizado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf071d9d81e3c6441eab92bcea7306989706ba02e9df95b37eb5918f3162b68a3. 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/ES5021501079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7d0a0938b224676a654bdb0d3850c8c9796a8f061e0525c8273c85779140b8. 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/ES5021501107.
Doce Canciones Sin Piedad (Remasterizado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297fd92e0d29725cfc32dd92ae0fb275e6c0367b33d2ca2c52be8e905ec0b859. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/ES5021501106.
El Baile de la Desesperación (Remasterizado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a756918eeac44c3750593945bbb783bd620ff5a33bdf3d73150ab5ce60685f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES79C1616031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178c2bc748b6ac63a5091371039180212866f03bd6a878ef5d3ed0454e85d4be. 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/ES79C1616033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c406ede4914fd6339b146f3d1cd8a40fe18ce1f544d7fbd54255f8d447d3936. 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/ES79C1616018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60bf2985d0decd105b9c8ac12779e4a54a03c20d7a1728fd36d19db430b02e5. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/ES79C1616002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0838981a223181b21ffc8c4274af2bda5793baba3087402f2127d3ae176764e3. 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/ES79C1616003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7a962092c1b898abaa00929646dfb35fece02dbb08d41d34d44107b4af19c4. 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/ES79C1616022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295877375671a35c424ea7a37443aa7e140ea0bd898585ce35c90f8deeb5b634. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ES79C1616029.
Zapatos De Piel De Caiman - Remastered 2016
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c7e38aad2036f19ca20ccbec786a0b797529dd52929b27c266eead59cd1c4d. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/ES5701501564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644744303db1689f879156de9eac20c37ef6fe1f4cf125d1c97a971caae0df8b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/ES5701501565.
El Fantasma De La Soledad - Remastered 2016
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2956e4a11d6d83c570d98f1698f1310b039019e7e599202969b6799446f88e. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/ES5701501572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302c457776c24a5572bc8edb11ffd129519a275903d6b766040b82c213cd6987. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/ES5701501570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44682f3950a60c51bdd8620728a11103c18720b382f0bca8ad4dda4f20e14e6d. 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/ES5701501563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e8189d4339c3cdde62c5705c7d476e97508630a6ad650144e5958003735827. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/ES5701501574.
Zapatos de piel de caimán - Maniobra de resurrección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c50be857f9983b7ba524792098773bc78f7fa2e87bfe9f9900cb7946cda9c8b. 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/ES5151601476.
El lado oscuro de las cosas - Maniobra de resurrección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed7aab03ececd62c49bbc21adc3a7cd1a32da0a94ef789176d9cfecff0e19f8. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ES5151601477.
Tormentas imaginarias - Maniobra de resurrección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c8a25fb3400abe6c542b4026d49bbdf4dd42180eb99b50832844ae36eeb37d. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/ES5151601479.
En el laberinto - Maniobra de resurrección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad874758597a8602b45ab68b1c5e1f779381634b2795114a18297e9069ebf3ce. 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/ES5151601482.
La noche que la luna salió tarde - Maniobra de resurrección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29ba8bfd8cc8b21097bfd207f7fe98e8d74bdd435763017201f47ef18e804d9. 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/ES5151601492.
Otros como yo - Maniobra de resurrección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45391981f2a83c57a82395c5c9a8c65b56d1527b3e30ae9460e6ad6a1cb51b8e. 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/ES5151601487.
Un cielo color vino - Maniobra de resurrección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c159379f81e9b2ee110d87a84bb0bba2821aae2997c8d98f150dbadbd31c8ec. 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/ES5151601489.
La torre de la vela - Maniobra de resurrección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0a1a0c9b1dfcd08a710ea2904af01e550aba396e6d177292f23ec45e0652fa. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/ES5151601490.
La canción del espantapájaros - Maniobra de resurrección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e571561b81b052f94af616c1cfc66cbf95b3b333d2f13df0bd9e68188fd9d4a. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/ES5151601491.
La calle del viento - Maniobra de resurrección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74817298bd2d22f88838005c597e0417349af20486508c93e76493cf4049dc5. 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/ES5151601485.
Qué fue del siglo XX - Maniobra de resurrección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0740b66e165a76afae9667ba6e0814c75f4dc743b0638e4333cc8f89046ddba7. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/ES5151601480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e892c6283bce4daa550374b6f369c497b6e9c6cb0e76686cfdfa95a7f1cd3de. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/ES5151900805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1f904df59f13c317c49363a9ff83a217963a028ccfb4e28f3dd911fb8059f9. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ES5151900807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fac1a4a4afd44b825cf0b2bc40aa9405c46fbc5d2741502dcdbfc12862f0df7. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/ES5151900808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5de45bb55195a895c6343c21ebd64c1849283b7c6a85fde5dda3e38fa6961e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ES5151900809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781a8ce71b82e99948c57d7cc6cada0024d6b8c9fe2ece932eb95cf02404152b. 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/ES5151900811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297fd92e0d29725cfc32dd92ae0fb275e6c0367b33d2ca2c52be8e905ec0b859. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ES5021501106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297fd92e0d29725cfc32dd92ae0fb275e6c0367b33d2ca2c52be8e905ec0b859. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ES5021501106.