1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1ac14800fff422d2bc42a2255ada8520d7f390659a92f7538c8fd49f825645cc. 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/5d0bf997-4ea5-45cf-85b5-5cbf621876a3.json and https://artists.proofprofile.net/proofs/artist/5d0bf997-4ea5-45cf-85b5-5cbf621876a3.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 → block OTSBitcoinBlock must exist at that height 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 0x758653a9d27a81a0c06794c056339752c89893ec6f6ed5c60fb4b0ea8f33a4b8. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ES23A1414310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e056b8634f8e0c4cd889e9f533d8569cc1c0d76e331e8a6aaabc2ece3fd6db4. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QMBZ91441006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb63c3e59f627a2beca3a386b771ccab6ebbe8df94302a1706f269f768c7dcf7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QMBZ91441010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3960e663f6e4365ea1f18e550bf41a8f11f4044ab020f0496f4988647f85cc. 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/QMBZ91441013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fba9f9258627f36caa143a856b661d8cb7fa18fb704a11426a8840f750e7179. 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/ES6101823201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa569b16ae695176b969c61a1f4724048dd174580beac19bb36718b061892e07c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ES6101823205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901939b634fd4ada4e86c7e13b51451ba312dbe4623ccd6f1629a836f2b256cd. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ES6101927804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f4eb950046ca27e197d8fb6184132e1ccdde8102b376106c443a101e76e550. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/ES6101927805.
Ara ve Nadal, Ara ve Barcelona (Ajuntament de BCN, 2023)
Son (Tema incluido en la B.S.O. de "Son")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6802aaab6f3eb4c065488bbc0408467ad8cd984b51f18ec12e5e792600597f4f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ES6642200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9f480670ed0327d3e043bbfd0389eb84b5bc14f4cc087ae2648d0eb1ea88bf. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ESA092409114.
Lo Que Me Pasa (Califato ¾ Trip Hop Remix)
Lo Que Me Pasa - Califato ¾ Trip Hop Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62f40a2912605460bbde98537f13e7dfb75a9d6c8779ee910abbe36174fa7e5. 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/ES6642500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4f5bbf7f7ea06245823932733f66d2ee653317853f5023fabb64ff812bdbe0. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ESA092505700.
También Esto Pasará (Banda Sonora Original)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6802aaab6f3eb4c065488bbc0408467ad8cd984b51f18ec12e5e792600597f4f. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/ES6642200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b7b55ec95cae7733c9cbe1c4972f8907f83f98823d6b39a2e814ce7c2fc748. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:58:54Z), 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/ES6642500044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0834d1c222ff145f9f7dc7ea36249d7cc9428275df46b9744a5f839dc89ab278. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:54:16Z), 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/ES6642200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bdbc416b7cc20e466efaf707b3633e4d09078437289e5fd0486bfb1a9666ea. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ES6642500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8903dd93b6dfe117c0170bbef89b3505a7af1c225d5d0f3747e2aef03b63092. 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/ES6642000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b11bc65498e08846b2b343d78ac9b16bfad2decf694b7925ba38dda3a184c06. 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/ES6642100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45361c934ad50c3abe44e3aef6009e0e60f409a8c6887d25e4a3189a37bebd7. 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/ES6642100095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d9f25a1f0cddd66c8e72736e27a0493ee3e2567cd0478e5f1cac94698fde77. 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/ES6642100096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ac35010d223c039ba4a54db92f5239a46252cd1067627cfbc8d8b50452d1e4. 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/ES6642100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b11bc65498e08846b2b343d78ac9b16bfad2decf694b7925ba38dda3a184c06. 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/ES6642100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8903dd93b6dfe117c0170bbef89b3505a7af1c225d5d0f3747e2aef03b63092. 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/ES6642000102.
Perversions: 15 Cançons d'Els Pets Interpretades per...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2931fd45ca80179c4c0629afbb74ebfdfeca86ef741f1ca89bcbae60d881cc. 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/ES80A1203310.