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 0xe25a35f5a1035d84b63a2b010ea31696e33f203d7761dfa71c32e09e859b70a6. 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/3489c927-5d8d-46ff-ac95-0356d1f4508c.json and https://artists.proofprofile.net/proofs/artist/3489c927-5d8d-46ff-ac95-0356d1f4508c.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 0xe05b9cc0a05ce4c2931448f103a3ddb6809d4f9eefcd8446a0b98bc024ec417b. 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/QMBZ92289440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb053ec906dc657729db0f299f25bcaf9b97f2b848d2d513f0b6416ddc1206f9f. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QMFME2248968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1326c951b98da1d858f71eb1d7ab98f16271e498ba7f96b4edd9b9d6391f30a6. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QM4TX2345212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b20851dcdf6c6899d3e21e5e1b6f630cbee136a726a8c555c260f3edba6953. 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/QMDA72486902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58935a1f7ea38e78848d6aa6a5fc756820dbdbf2f6564f62e79d0321459c50d3. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/QZFZ22561381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7602d7369c9b95a35e773c487acc60224faee51f4c8269de05a3f6f3cbe9caf2. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZFZ42580864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b437cf9a1e75ef7f7c768b1e989ae2c7003d2f57ac0df0c07013fde4bf86fc1. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/QZFZ42575658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45d97ee489c995b5beb1bb3f1c30013ac042ed5fd52d2a927fe98f8c3da2013. 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/QZFZ42577626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b030babd8e48b699f89030e2643984fb540677a2436f5d80923c0308a800af6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZES92538005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4812fb5045c97a029af0e5e2cd418813195f0f713bd9fe719b2568615422a12b. 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/QZK6N2559080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7d5175dbd9bdd8fce2886d57a729c47364d6b8cf75ea428b8eadde88ed2267. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZNWT2520508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ef49b3bf4d48cbf35693f674b6d84dfdd42bebbcf0fcdb6d32479efff8c593. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZRP42565888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b758334baf387a5a0fc4bdb49dcb7d07aabf769e19016b4e2a2eb5943031b65. 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/QZRP42597174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772ce3a4902d353185f2410910d413c8af5f30328207ed10a4be4b1f6a2f2e60. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QZTBE2520190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e514da275f89cca9b9a647ea412736cbc87c4f2ad79ca4a04b4f00f521d975d. 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/QZWFK2565764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763d42646044af6b7181b3d1a9ad2dc3f1858bb011a103b2459f0929b98688dd. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZWFL2593544.
EL CLUB - (Latin Tech) [Yilbercito] [Radio Edit]
EL CLUB - (Latin Tech) [Yilbercito] - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e2cdfaec8ee776eb35265c0aae51f886ba15f1a5c46d08cb5da0a2f57f6fb3. 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/QZZ772578761.
We Are Your Friends (After mix) [Radio Edit]
Baila con el general (AFRO) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5ec9213ee5ebe901894a14070b35ba70f6b3dcc95364e811af97ebf4e174d3. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZZ7N2586666.
La Forma En Que Me Miras (Latin Tech) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143d3bed6a0c5fc300ac389b0490bcf5d964c00fbf01c4dfb10bba657076c249. 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/QT3F22573485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa181dd5fb66bcea94bd8db66dec3746ba9dc61000b22e679118973e4f32d23a. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/QT3F22576857.
The Real Slim Shady (Matias Emmanuel Afro) [Radio Edit]
The Real Slim Shady (Matias Emmanuel Afro) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4164c25466c96c68b79a0c8fa43b717352c822626656c2bc316429f5d93e5a. 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/QT3F42595091.
Gonna Make You Sweat - Matias Emmanuel & Nacho Serra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb00927192b407289c81523690013f2aaed26080c01d84aaceaeca2490096008. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QT6EE2570450.