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 0x6e730f691e7012b6eb36ad161b4726ba2937590cb6a0f54f984a76e899601bf7. 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/4f1e90e3-8990-423c-894d-cd60f2a29329.json and https://artists.proofprofile.net/proofs/artist/4f1e90e3-8990-423c-894d-cd60f2a29329.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 0x2d3ec5de3b3a8934e595f679cc15a9fbd10eafbefa6aa2d31195d7b3d276a70e. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:40:22Z), 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/US7VG1879583.
Acústico Imaginar: Aduílio Mendes (Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce769f0ef901f658c4c771132382898fb3cd239432346d397911a77aa7dbec14. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T08:36:02Z), 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/BX8ME1900195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4241bbacdf86c6349fd81bbf812977fcbee0b1577b6b2969856c24c2c3acd641. 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/QZHZ51991556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9525a9d9c2a7f8b2c01ddaa04dd38d0942458bd90209c8033f11c2fe1284f4. 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/QZHZ51991557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ef086d219b198524891a66766c8f5feaedf2cfd85b2fcb932e86e55b39a865. 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/QZHZ51991558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a917b32e231c2396c9b97320cd60ccb052042ae134ab8f0cc020f22e51e2c54. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZHZ51991559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7315677739c20c0fd8e19f8bdbc6a06540de91f8d679993e82b6e14f76f36a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:33:30Z), 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/QZHZ51991560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f2f7abac062dc4078f3cc2ba0ab0cfb6a159908ace29e749b77e871eac7432. 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/QZHZ51991561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39acaa10ab03fd93e64cbe924b81cc0332e244da2aad202693e256a9b0bb410. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZHZ51991566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d9111775d65f674195ef5b46355181eab09cc7882471f89c18826850ca398b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHZ51991567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0871e06e2f2efd19fb3b13e7ca6d318ed273f7075935bed702484fb794fb5e2a. 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/QZHZ51991572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2525610c7aee358bee0bb2b6b9de699b712cfe25b35f48f02bbb0811c93ef3c. 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/QZHZ51991573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288a5a562e3998cf74f7fc4ffd161b34b3cb4223345bbfed032ba1c80bdf9c4f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHZ42061820.
Pode Chorar / Coração / Valeu / Primeiro Passo / Destá
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912ebb449cd3a21707d0299de04158a2babe0fdbdc047bc495510ef489d6fa7a. 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/BCU7K2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4501ba5f2c2c0d37c43aaaf7660a7ba0f515a5fd01abfab39b75d547a42e74b9. 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/BCU7K2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ba38217b6e1bd12d07279a48818f02888c05934e5648cbcf89b2046e9c5b2e. 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/BCU7K2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dc0f47edf1e987605bea38b4d4db89d1eb9dc0848a75e1adab8750ce2292d9. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:50:01Z), 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/BCU7K2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d10eb1b23b0ebf31663df553663ad701e4346e575d5ae8a10900f7fd7e5297. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/BCU7K2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8163c68a21f7e311eb5e21791d6df3ecf0ef844ff35f96e16c2ee2bb9306404. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:27:47Z), 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/BCU7K2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ebd1017362145194e024a1da1d40c49d4e2ce8989b032fc05abace8193ab12. 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/BCU7K2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6692dc13d6d8bb7b4ab10037ce5a4b8dbf4d4db7e23a1cbbd0f4ebb5ac0baad. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/BCU7K2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1698009fd9fb6e67c55ddcb88a9c81a0c6611a9ad8ff98e37ad6519c610a59c7. 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/QZNJV2574620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb0a8539cd6a8758e3a26496b3e0309a703246a37795377ff3235163e56c7da. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZNJV2574621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd47b86e1753a6f9759989eae5fcb271b2eb22ab40c3a493ae5d54664171cf0. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:04:06Z), 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/QZNJV2574622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef127d963f273a27a2056c40d16fca98297a66198be02d3f3c4ab9162f158fea. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZNJV2574623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb95adfac7c6c89342a146793ba1a7b5d94c96e07562beb578ce9097da5efa92. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZNJV2574624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1baca215c7b44784c17ba83e86ac1ca3135da871adcc1e8d7761b57bd40336. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZNJV2574625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1b35d4c693910118b9d99a78478370e05f0d5bd06a9a0b7e6f4005f46bbd9d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:51:20Z), 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/QZNJV2574626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d36bdb469daa55c62f359daecbb28128cf1c4d6ff6eca5341df587cb809c0d8. 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/QZNJV2574627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa951322634bc273ca24c9ab7eea9d6b822b62057bd80637c207b4948be69f603. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZNJV2574628.
Pot-Pourri: Ela É Demais / Amor da Minha Vida / Página de Amigos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c16c74099e5ca43a29f12107680691998de94998cc1d26f5694dd5268057af. 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/QZNJV2574629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07239ea832cf28724194ab5c0b9c3e1e068f73ea6d3d346092a0f87eac6188e6. 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/QZNJV2574630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58089041a15838e7ef25ee34781c63b1bb6de64bd1f4e4d96fdc2ddf7b92d974. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZNJV2574631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf994a954fe73de81cb2f5cf8cfe40c179b6b2630a328b2c06dba4301e1baf8da. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/QZNJV2574632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d57075e782fe8eb02db55f8ef250d681ac4b5b7e6b1378cb8c769a68b2b89f. 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/QZHZ51961270.