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 0x13108510c4b7b222fa575c88b0dbd545c66e36f3b79654fccf72d993b326c3a8. 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/738b2d63-0427-4780-938c-38c89414caa4.json and https://artists.proofprofile.net/proofs/artist/738b2d63-0427-4780-938c-38c89414caa4.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 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 0x9f8fccd314c61c3db3b5f5f3204e84138985a06b22d47e12a6a3f0170be73f36. 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/ES6171140032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f9dd34a73cb2414ba84df851ba2d6d415621d9751ffef68279342bdbbe34fc. 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/ES6171140035.
El Twist de Jorge Ilegal y los Magníficos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ad23bb4c9b8b1664106e1b92698df5c1a4f0f39e78bd36b3af17da788d938b. 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/ES6171250044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a1c38672d5b8fdeb8107acfcb15585c4368cffa1c3935ceb9f09945979cfd2. 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/ES6171250045.
Regreso al Sexo Químicamente Puro (Directo Jorge Ilegal y Amigos)
Regreso al Sexo Químicamente Puro - En Directo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306ae31df7fdd92f9c882ced8ab7df4f9aca99b06caedaba67f22b5034103a2a. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/ES6171470032.
Hombre Solitario (Directo Jorge Ilegal y amigos)
Quiénes Son los Curanderos? (Directo Jorge Ilegal y Amigos)
Canción Obscena (Directo Jorge Ilegal y amigos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76e053e25054e69ac501fde91d5e20967d19c731f244475b9f84ebbd8ed46f5. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/ES6171470023.
Cuanta Puta y Yo Que Viejo (Directo Jorge Ilegal y Amigos)
Nos Vimos en el Psiquiátrico (En Directo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6447b5f427a3ac6e8d6954c26353e33912c60827de10b7e5439f5c6991ea8f2b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES6171570001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8883968b8c15c8499b74ae7fbed6994554ab0bdd7d78c825f7732305e10f27. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ES6171570002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04190d9f15a43de90b6ddcfdc783c8591c85d86e5358abbe35bd8a489f1de3d2. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ES6171570003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f98d6bd94fe0c58f1fbfd33462c4daaaa0b70002ae31749d7ba32c0c087a428. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/ES6171570004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3e256c167d21d41792fed04da96fa4edbfabc306ce663cb8b747ed66f90ccd. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/ES6171570005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3db5667739e750fe2fbfb73f2bb9a3da42ad49a754c25799b190356b72822a. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/ES6171570006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe1cff31ef8fe1c9dfc38e598eaa1eac5b0242f11d1c5c8df6c1c5e704a328d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ES6171570007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f6f221a183d1d86be0208396a40289280458dffc4dbb7ec9e3ada59d4a5367. 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/ES6171570008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ece9e1a1a4f5e8c32977b4bde2764115ece25a93955979644a18885c2c2ec2e. 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/ES6171570009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd0d8c5c274f17812d532e38ec1ec5c113234a442c311e3b0b586fd6b60a3a5. 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/ES6171570010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd4fc5636af2375902ca8e00ab50fbb09240b3794fdff8ea14eaf21bff537ab. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ES6171570011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908a8d6b6c0782f53d700668dfa50d95070f13fa324c65413121594f2ce5422c. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/ES6171570012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc775237a49fe282d3a610e5c3fc2af94c4cd0676ecf9c83310edab96970101e0. 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/ES6171570013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ce46c6a7d0d8f9943695b0ee60a87f7a77923d1b37bbd7b2aa57d28c0e3b28. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/ES6171570014.
Chicos Pálidos para la Máquina - En Directo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a474312838e9b9c74dff01aa8d8946346a2cee3d59b34584196455505c951e8. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/ES6171570015.
Quiénes Son los Curanderos? - En Directo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9af0cbb4034f93077e1a4baceedca50be4a969a2751a9f9eceb95ddd29ae8cb. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ES6171570016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721ef788b2ca9d1d12b379c7c402349d57b7c0e4309bda455af17f32c3692561. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES6171570017.
La Malicia de las Especies Protegidas - En Directo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5098d617d0631b06c90d27a6786f64d51b548318e63f55467083492b90233121. 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/ES6171570018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239d3f921d7c3152205f317cb6c41fa0a47538e2b94d7ea4ae68aa1885c7b310. 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/ES6171570019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac31f3baf78026d0243fd56be2a032a3947c458d43dc14dc48b868531a0f9a4. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ES6171570020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd652feffe281c028f1c0eb355b0f4772b843117979faf0fef1cff05f206112c7. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ES6171570021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a391172dd35dfac2f564c5c4ddb162895a233cbbd13b24b7adf48ffb4904ec7. 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/ES6171570022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a56f7130cb284d9999f7632d00f3ff891bdc75608c2332152615c2359e8791. 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/ES6171570023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0dd06cd50aa95527d674f2082ef317151326d5297567f05ae68a17feb36f6d. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/ES6171570024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a18d174fb208d92499a3954adaa51877164e245fd504676f96116f5bd17b27. 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/ES6171570025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31264989180f19350a284fc56322b211fe17c497e87c45439d68997dc417c39c. 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/ES6171570026.