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 0x12caa4a78bb90b1f2a59ded33eae27d7f1c8a1457884f554cac5fbce7e5bbf75. 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/26465d66-35f4-4f34-850a-a52fa6941aed.json and https://artists.proofprofile.net/proofs/artist/26465d66-35f4-4f34-850a-a52fa6941aed.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 0x5973a810e3ef845d660ecc89d0c8a27d0a608e69588fc1ecbe98babb94934032. 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/ESA012014763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5973a810e3ef845d660ecc89d0c8a27d0a608e69588fc1ecbe98babb94934032. 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/ESA012014763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8542248488827087a4cdf36bd8239fbb7eeed5f467763a598123bbccc4680c87. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES5702001459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1bf09681209fcc4d419001b1544e0a6edcffdb5410ae0b20179a1879d10dcc. 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/ES6172121212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec534047513eca6217fe9eaf527a1c78c67e1efce8b9cc1e9bcde661eaafa7d3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES6172121213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83793d47c8ee1c526a3272dbcdc05fdd83cfc6e74a89d1a2192db09d80ad4562. 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/ES6172121214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff880fceae83e777498ffac4e773b89a0b421dcc578f9ab690c8d35b0cc5fc5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES6172121215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d232c9de726329b2904d9be84d2d8f5fab8f7054ee53794d27fda719f82d69b. 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/ES6172222032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fdaa762810feab1c32d65032698abcb40d77e6a4c35398b4de93443e124ea2. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/ES6172222033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb987a19635347683518ed2b0fabb88e4d47dd9aff9e06d16f6e00cae1d4e2c5c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ES6172222213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc989fd228182f8deb2b88b669bbe0af9e801562c8cd6b03a1f49cccb7ee49789. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZ5AB2387184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a55f64555e75f7816445fae0a0c088feececa1fb88a05e595d82e6485448634. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/QZGLM2377070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4871bf7255926a803101aa52b5284b3edbea085d65466b9ea9986a3338608e28. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZMZ92345089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1fec1d05c7fb0e48669b2d788e98115b47111ddf9095a042860e11a4255943. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNJW2308078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd333eb8573b6bd99af4e59b60cfbba02208dff644ea0e9fcc73da071422d1f4d. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZNJX2341310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4ddf04c2bfdb4b23c2c9a18e196eafb6bc3fb5a19d2d192a30b93dadb77ace. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZW9K2310039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55241f40a36158574f0bc08e8c69f300d5c25c4b4aea55fc4a3d464524af86cb. 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/QZW9M2337842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebe8ac243188c7ff024180e0205793cbf744d49ee343dc845ca13ffd2f0001b. 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/QZGLS2493588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fbd2bb9567c97e7358caa6e0a0bc65379d0fba20e353f07f5d351361f73cf0. 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/QZNJV2477782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e38dd349301a2d9979aefa3c73b20bf3a9ed2c4149fe18e989ec3bb652b8010. 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/QZNJX2430559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdea20753cb969468a114bac75332d219627206aeef8504e53ecb8e4c2f3364. 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/QZNJY2429236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fbe4b89b4712f90c27f22056d55f0ef22f72b1e30eeb5cd27e9ee1325edc59. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTVM2418054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3513d1294e5a020320f79939ab9f6c2266ce1d12a49e1ae04157db1a7ca44d9e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZW9K2456453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4622de84e6ef84c52946cb9e0269bee6ad2f942327a30f4203c5799dc5a553a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZGLM2580229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3091e441f8169c10a21739652b19164f1db6c33b43c80a0267f41f68864aa1. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:58:36Z), 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/QZMZ92567274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1853582b6c3c3d556d33e59d369465d3eda524a52baec22f1d6a2bcf94993cc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA011908465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4d71ebe3218ce9af608ca7577fd323ab8519a8eaf7fb3c230d357b3fdcfb63. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA011908466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7864bb44e34e880ab455108e033fbd8233b4c7819a113e6b036246dc3c6fd661. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA011908464.
Tu Nombre (feat. JC Reyes, El Daddy) - Remix
Tu Nombre (feat. JC Reyes, El Daddy) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5600e6902b92b891f113fa9fe5084dd2426499551222aa32bcbb9235b43f2e2e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES5152001075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a377aa64cb28359e73d76509a6a84660700a5552420854a0e65d5fc830fdab. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ESA012079484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8abe616ccbeb9e07fe63c308f98f0eef07e961b4be5623f99e75e32900223d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA011717163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cca247c50695823d58dfac7cb1568fe35875730c50168c69808ada38e66aceb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA012175934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9339f31be6e4dd233c32d51574bc5a437b918344c11fc82424a69fc206412d8f. 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/BK4DA2410891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec4c3e98195190148420ad713fa6eb68918f661f07bd8c1dfefd1ebed36d0a6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES64E2301262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670142afa6d1145ca4c57af65ac5db99aac9f4a0b0213493181642a09d16d573. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES64E2201962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1c334e8372ce3a524865d42ec736f8dae536ee12cc5dd2ad5398563cc24a46. 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/QMDA62118961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1898a61bdf67d2c05e09b54e837d6e08d779bc53b5d06b9ed9d351b4ddad3e0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMBZ92116626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae803d7acd7915abd0243036b0db984fd9b401039b34e258efea528b63dce806. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/ESA011746834.
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