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 0xc917e847284c430096d3f5d536573efe94598f55dbe2f73d9acd41ff1078f06d. 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/084a3fe4-b7a5-47ed-8f8b-17d75c2cdc0f.json and https://artists.proofprofile.net/proofs/artist/084a3fe4-b7a5-47ed-8f8b-17d75c2cdc0f.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 0x8024c265e48a2578ab53745951e530504c766a54c13b78af9013db10c9116496. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QM6MZ2087179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3036e5998060189cd2a794c43abff28a3e1fe0c7d8b77f91f4c6d4bb0ae53392. 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/QM6MZ2087182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58b5616ab68911c5c7b8be73b9b234f3a4bb2befb8fbf0bd181435b4c1fc59a. 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/QM6MZ2087183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd5a5ec66bff105197403ab5205dc4b50addd60a5955c3028e911edecca86ee. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QM6MZ2087184.
Me Llaman Loco - Beat Filtro · Scratch Dj Hemeh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbb8ba4c2696eb6486e2909e2354cd52edd4f80aa345d78fc78bfeee573e14f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM6MZ2087188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b577681489e5049324a33c6e0229c4823daaa06633b6ef9d17d9b1aefa5fe72. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QM6MZ2087201.
Nos Pasamos Toa la Vida Vacilando Hiphaap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7f43f8d47d56daf4664baaad75f8c5b84fca78afe22dde4748ed4e8c0e793e. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T21:10:13Z), 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/QM6MZ2233234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dfdbd09c9e887a8699fa601c3368483be304b3e1f9f46e18d3b6737a7d3c69. 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/QM4TW2325144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40af3a50adfe412707bf8e31a1d18dc0c3fcefeef8a79f698996e356112a03ae. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QMFMG2352997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81e7fa45ab2459c5b0de2994330e3456d5638401e08e77e75c7104f3d84c0e4. 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/QMFMG2352998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0299173990f48318b364f2258b16a59a8416abaa1d900e3cc7f4e7d5dcdbed97. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QMFMG2352999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc601144a3e1635229b43e583998ddf254207cdba6eb77456678af5e932957410. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QMFMG2353000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef5f1960a898de316a6a317ed698239c75aa6404c5a0550ac61b71a4969ffdb. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/QMFMG2353001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6948ad4e3d417261be653600dfd3c59cf6b8451dd98cda4cea8a250ec0d5abf9. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZTPX2314371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb283097b1e6fc5c2dec0426c70d0bb49a0490a7138f5b41c8938d442dbd5e069. 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/QM6MZ2168818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f9009feb71c27a15b5d7463274993054973ab172986a5122e39c3bccfc58f5. 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/QM6MZ2168819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f906b13949204f6a309866eb54dc0aa79ee4e96a0164e024f3ec36bfd6976a. 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/QM6MZ2168843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003779943b7061339cd18ac675ef88e322426ba103461d203da18d19cf9f542a. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QM6MZ2168820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b830128331e3c42c1d1d8aacdb76f4611da89b0769c057cbca8a66ddfe0a4a1. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QM6MZ2168821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bd5a159d4d993ab4b2ba5b7497bdbb0fc21e7e6733500dfa087a8ec3c43d26. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QM6MZ2168822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81af763d7b9b24ee1b405d57ac30c49397fdf5b754d50ddc91b26531f77da02b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QM6MZ2168823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05e69d4a631e3ad8428a8b57a9488927ddef0e456a731720b7121132be28365. 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/QM6MZ2168824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886c4ddd6e0cd3bdf5fe94d8c748bb35cd920b6308bcb16e87ad49c57c5fda3f. 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/QM6MZ2168825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd896e3cf2febe8b4c9c303b987ad72e3c4a834302c2c3363bb0723e929ca7c63. 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/QM6MZ2168826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3922ca2501b0d873312b315dab56ad3acff35c1adeb5ce1e45e114db0c28735c. 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/QM6MZ2168827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d19f2624e6edace66761b8007bceb0e5c55f713304eb5d683d60728d51d595. 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/QM6MZ2168828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65591628d2dbdb0bf06453ba0a78de099c2e16cffde501a39969a09857b8b0c1. 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/QM6MZ2168829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c6979b7ea645a4591a08c16691807b2dae6e7a44dec9cbb40ed969de890153. 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/QM6MZ2168830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646e99ff2d31ac30428c7180162de0f3baf0df56c9ea8eb5fb2201ba7b1bfc19. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QM6MZ2168831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3d66a82af474fc9173ebdc457e368da5554a0685890a33390e384461e22c35. 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/QM6MZ2168832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc950871903682f2b4b164e065248a0a99aba5fab9ea04ac1b42f6de5ea50efe. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QM6MZ2168833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa441d12dd92b72132964e2cc48818c3ea36cf6228a3966e6ebdd5e09d68e2a9c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QM6MZ2168834.