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 0x84839e2acb71f8c915bd1b49fec4499d5d23633649b086ea865688922fcf196a. 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/e38b550d-ddd9-4961-a11e-4e0cd1a3a5c5.json and https://artists.proofprofile.net/proofs/artist/e38b550d-ddd9-4961-a11e-4e0cd1a3a5c5.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 0x62637cc88ec6f1f5d1423f9de06e6b6127eb40e973fae31641c7cfa69a5ee2d7. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:10:53Z), 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/MXF060700301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7157a0d3109f685090658d9b03642897a07fe707c4b74cb578475d94bcb0120. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:16:58Z), 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/MXF060700304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c125c4dd78bfa8ef991c3906a691aa7473269c8e8aabdd17be551a4f3f036a. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T15:40:30Z), 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/MXF060700305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d763b128842cbb361875f86e2781564ec4e41886f84406e12f3f2bd434c49f8. 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/MXF060700306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a702f9c51e2ef8fea4e290f6abca4770704065a61702d8bfd4a6f810cd67439. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:24:57Z), 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/MXF060700310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd2217501a98c702d8284ef09a37f534b0a770ae20e29889319ee89642cbed7. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:08:26Z), 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/MXF830700070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8637841b227cee619e98ea6ff88b4aed7270579883815246e0f427fdd90357. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:08:28Z), 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/MXF830700072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d03be88e03efaaf3dab4f21280eac9ff736c744ae46471f5dd3ec1b6670b919. 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/MXF830700073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f5f7c47a7a24316b18955b7d277715ae94a3021359f6913f7ebba2e2809370. 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/MXF830700075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99d71c9028c81269610fb94d8a57352be27dc5d36699a6624da20f1e709f41f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:29:50Z), 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/GBMUA1600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6651229833db73e2f8185e2c7dd4ed3310690d8e109ca5ca7e6f367abf6bc42. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/GBMUA1600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7bbe4932ce1b6243ca57e9ff51d85b6868a7c3c6221382ebed0f01ab7277b3. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T04:58:26Z), 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/GBMUA1600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd614d98240b62ccadb71c882836096bdd2e1a98257fa0964d9261c590d1633d. 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/GBMUA1600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7135f08f7c7f7641dbe8640e570ca14e64d74a71f3d92d793b3cee7bd32d53b4. 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/GBMUA1600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cf19029f2d5109e06aff0cd0fb52446a1b9ae0139d509680318d8d9c1ac708. 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/QMDA62300164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252fc65e147c392981756b0c3aad2121fc9b9395f5c9898a421df9e4307d322c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QMDA62392861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23726d7bdbfcd8bc012568ff247c142b0816574f2f30a779165f31fdd45bf410. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:19:06Z), 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/QMDA72390284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a0053870b9e62e92c5fece0e256b7b5dfb447c48deb8eefb12d93238ccf034. 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/QMFME2341213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc37d7c4099f1b5433e8ea1fc133b8ce261ac2cb0e4090e4a705df7a2ebab937. 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/QMFME2338255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f3bcca5a5bcbc4008af2a0075dcea7ca69d9ded2284b1dd553c90ef2b550fa. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QM7282346249.
Corazón - Amantes del Futuro & Vetiver Bong Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470f0bee08b1d860bbf8a9b7b09318103349a631c5e3eaceb7038f10d3dcc72b. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QMDA72414798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad6302b0dce14cac8c8981059f1973ee858f196f80c02922ba66aec6f04cde3. 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/QMFMF2423006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43b8dec6e150e7bd23932013b8994aa37d9e88fef2a4e2f4676d0111162af1c. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:09:22Z), 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/GBKQU2548378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf05f310f2498638f7c9728fa5640ece2c91fa8204ee93338a0e4ac4b7cd97fe. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBKQU2585024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82378c545983248a0232faadc12cdfaad6909907ea9edde2c1db4b7e4f8c7eef. 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/GBKQU2598915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd910511ae4e848760f02022cf8aea17f342261a6c2f3304dd58737651c429f88. 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/MXF019502117.
Corazón (Amantes del Futuro & Vetiver Bong)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470f0bee08b1d860bbf8a9b7b09318103349a631c5e3eaceb7038f10d3dcc72b. 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/QMDA72414798.