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 0xf5afb43e9b9076793ba20df92ad3e11a548b94637b871609e545787b2de75f59. 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/343e5769-1800-4725-a31e-19cf87fd9ae0.json and https://artists.proofprofile.net/proofs/artist/343e5769-1800-4725-a31e-19cf87fd9ae0.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 0x910f2b3d9ada1b5efa30437382afb0d65f98fcfdeb776854e3ea2bed9b2f31d0. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ES5151600110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d3c8cfc371628d9cbadb87feb5f5e398dabc3ec89f7675f720b9d671e210a6. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/ES5151600111.
Diario de Batalla (No más lágrimas) - feat. Carlos Cros
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19fb0e5a258672555bac71747edc49395301c2bee3a8adb42eca4f2c8ab41ad. 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/ES5151600112.
Contigo cobra sentido respirar (feat. La Bien Querida)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8474d78e5603147b548757d6ff3e9951231fbb3379520a6f25595cac57398c3d. 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/ES5151600115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bc36538d1c067cd480905e80ecb5755125761d4ebb40069ac6fa05132279b7. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ES5151600120.
Lo más bonito del mundo (APV & Carlos Bayona Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6612b9c366d7d550269c9e2cbe06ddc777d88bf8146eb6c1c2c30882ea7c57f. 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/ES71G1879351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12e1bf004cbe369c9545d23402b3dd8d2bc0ffeea8caae1351fbbcf12fd96cc. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:09:37Z), 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/ES71G1912223.
Mixtape (feat. La Bien Querida) / Si está bien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc808a25103605f4cca0b31cf142f4ecc9015fb3c3081a460a21c596f84f22bd6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/ES71G1846423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc39d6bcb31fb16bb0a8814608918925036e0076ff75084ba79f80abef1ef618. 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/ES71G1919112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295217b0268016907f2c068fc56ea7282c45eedb88a77de2ac1cbb8d79beb985. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ES71G1933424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb442129b141c7853e6fe814b45b4df7044d401c9deaabd95c3b8e5d99c352278. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:12:00Z), 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/ES71G1919113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23df447041ba20081783ebe0d61d90cec0acc89019321b30abfdda5d0735f4ac. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ES71G1935431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92047084fb91678ba5c7bf86897bd742b94914ead2b3819116437bee79bc3c01. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ES71G1935434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08fe70b04116bc95f1dc8f8a8518957f6c64f1babd6f76915836e49098d4830. 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/ES71G1935435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6612b9c366d7d550269c9e2cbe06ddc777d88bf8146eb6c1c2c30882ea7c57f. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/ES71G1879351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c1e5671b432b97e35188f8499e8056c1112697b42959cc182444ed904c75e7. 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/ES71G2027992.
Nunca Dejes de Moverte (Banda Sonora Original del Documental 'Nunca Dejes de Moverte')