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 0x93e9d31b9edaa6330d60b32ee99df8ac4211e0f5258b4ab42cc8b9757465ef57. 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/aa5e523d-6548-40d9-b934-b98d95b18d4d.json and https://artists.proofprofile.net/proofs/artist/aa5e523d-6548-40d9-b934-b98d95b18d4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Los Encargos: Corridos Personalizados Vol.1
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 0x95eaa31cdd9159fe89866507f7d611145a1dc1d1fa725763a0020e6f9f8bedb4. 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/QMFMF2020402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56909cdc47750d711069a2c2d3e5ee797ecaeb4a12fd515ef060a1a97f4a54ae. 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/QZNFJ2117102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8cf44674d03668d618ca4734532c87b4b3048a8631e09bd44bd63917b02106. 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/QZNFJ2117104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007988f13120a22abb6b883b8bf5996229b88c5e16c1334468d7698857297be2. 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/QZNFJ2117105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd38e1a366a32c7e5aad94e76d1fff3d27e2b0408509ba798fd3441e5e99270d. 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/QMFMF2028889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd9cc1e69e18928ba8ab7a498649f017b81518a1f61ef84781a7155cc1ab08e. 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/QZNFJ2117107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe244152b5a16f54b41722aa7a930ea570a02cc2501824c91cc26461bb6725932. 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/QZNFJ2117110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fad59d5f0e7066a655a74115023a5eaac2430587307c0751ac4d9def9498c4. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:41:24Z), 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/QZNFJ2117108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6d38a98ac72a9495db79b3ed4f15f12c1fbfa7e798a58d6aecf16835ccb987. 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/QZES92027654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69335a0f899f6ab136f8798e8da693fddcc82717b0bf31c52b6bf137d17b9277. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZES92027657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0598fc152570cef447627629ba13403128b80cb0329f2633a3f537fe8321f81. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZES92027658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c0a1d31a9a17c5b2925a67b4e8639d74085563b8acb831ff2b9f795d5efd2c. 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/QZES92027659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033a874987c51b7e0ab4954e159cadf33adf59d43e2d2dfb40fdd9cbff4a6c6c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZES92027661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4053704ce9136016e3d304702b81f8df848dfbed666665436b475b0f59cd3411. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZHN52322820.
N.T.J.C.L.C (No Te Juntes Con Los Cholos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab3cc901f4f59dbb614410738dd2979cb6f68e3f49eb6b3408a6837ae54a239. 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/QZNFJ2201955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b63c428b27318cfb227dd5b2847b8fef42c9b48d230ad72583e0f957345e36. 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/QZNFJ2201754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8c3cdb70a43e4827c38341169e5d0326f20b452e37a0425c9f11d1f9df1b6f. 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/QZNFJ2119740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3687bfefe38dc2b9a78d35b2ff26401e049506af8c6adfbd4df8f9f6fa64bc8. 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/QZNFJ2119741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e5bbbc19c5ec2b5edb8650adb8f882689407c42b81974f7a77f81f1db4fa1b. 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/QZNFJ2119743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bebd9430ba277aa64cd8e6be52da9a4228bbc0ee234ce8430fb9f407398046. 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/QZNFJ2118239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd38e1a366a32c7e5aad94e76d1fff3d27e2b0408509ba798fd3441e5e99270d. 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/QMFMF2028889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95eaa31cdd9159fe89866507f7d611145a1dc1d1fa725763a0020e6f9f8bedb4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMFMF2020402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abc3af244404fc4b40a0efddf63912d814eb4c557d692c46e49f4993fa95611. 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/QZES52091170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5923e964196dac4d1147734662b424c10b698f82d1da65eaa18ffa5373b27e7. 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/USCGJ2458303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a509bb87b657ebd63ebfdca0b2153a4c5eef72f26945a48d097f67c6544b91. 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/USCGJ2458304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea7b8dd157cb358ba5d3366fbe45df0a764b2fe9373068321f23527e2febaab. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USCGJ2458308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6765251edc2d6a9baefe3307ff06274e7bb7bcb46757ae12ba7a34dabf07004a. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USCGJ2458310.