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 0x26f510aa91a410061f8b6e46734ed4be9261a905eefddc30b46e9d041b810378. 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/9f6985b4-95d2-4851-9f0b-4a1e448e0af4.json and https://artists.proofprofile.net/proofs/artist/9f6985b4-95d2-4851-9f0b-4a1e448e0af4.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 0xe332e232fac07f2825a3935c6df6148b3afb72f806d645edf01c288b11abf659. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/BR90B2001292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e1a6ca2f46a30caeb014dabbe36045d25300349acd7dd3390ab2091d8d1b9f. 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/BR90B2001293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd7ee2a5bba54519f3b040eb4f34400439db1b1e539a4bbeaf1d7b454e13e93. 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/BR90B2001295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea125ed79e40b515bb5961e8260581a70cb1f725b50e1881a9bd8c85bf9fa0d. 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/BR90B2001324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffc010ee874c32d5dd0865f538e21f51833c651186427e4d0bc0229eeecff4d. 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/BXZVR2100001.
Esquema Preferido (feat. Tarcísio do Acordeon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fb76c11b1ed49bf2c7b3cf748acd9058cbe19f074f2491a8328b161c16fb48. 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/BR90B2002404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c44f722f3edfb96e0780f9116eb017b6e967ca8fa3768b71d86f356500cd3b. 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/BR90B2002406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b79d006cdd6d7f6545aabdc1c7ac5d257b7d9f0742a48a460d8c0fbf7fd258. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:19:37Z), 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/BR90B2002411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fcc12e3fa2ed69553d3d7b50e549abe0a770fcfc0aaa6881512fa108eab758. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:59:39Z), 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/BR90B2002410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee38854eac1973464b73524bd6736df1f7854644cd3d10b3323448f31bc8239. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:46:51Z), 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/BR90B2002412.
Baile do DJ Ivis: Piseiro Hits (Playback)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7e90786bbe126d3905f559180838ceaf430c5640a19f5f80230e0da434203c. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:16:44Z), 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/BX2IA2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252e74476b29bc0bb3aabd7d91445a77c22e22291c629c700919b3fc81b302ef. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BX2IA2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8137bc9b982d3b63e4709942fb582321b764d51b51228b8650b49b6045b9755d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BX2IA2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42dcf4feb39f3b8d48013999a345d06817878832a60f5922c67aba731047ee58. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SE6XW2190537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6eb61c6392159ed82e58fe4b2c703e8c394affb6c061b39aaf0e8880da7876. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/BX2IA2200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988b8b267f5cdecb0b2c263ee0af2709990ea47ec1b7aed9e92c08fde776e253. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BX2IA2200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949af953cb519784993dda58c6a86e866b5f313da100da8f7de05e5371d85862. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/BX2IA2200116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9b8ded7d4ff3623208f2fcc6720b9ce9eda78192774f2caa958daaf79aab4e. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/BX2IA2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eba7fd666e0177adb7e65fe5c531da4214f4f14600b9fe860abdfd4a9b0d0a9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:12:25Z), 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/BX2IA2300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9b8ded7d4ff3623208f2fcc6720b9ce9eda78192774f2caa958daaf79aab4e. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:09:15Z), 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/BX2IA2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cf9826e2db17031ddc04fb43eb1d491826a3d7c5f59bc2a7df7245db7bd3ec. 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/BX2IA2300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c55312f19511b1d9525608dd0c7be1f2e36d1a3b179bc86a42ec72d7f1f7c8. 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/BX2IA2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2fdbace08b247b38ce2e29148b15efc589119b72d871e5393e5ee20ecd36f9. 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/BX2IA2300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e159343a3db0060b20df1128915962d951f066a0c6cb51f86790e921113d073. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BX2IA2400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3279d7bdf63f41fa05cbbe8115dc3daff420a77ed0a05aa487239c5a35f17360. 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/BX2IA2400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a5c33e09fafaf5ad7909d1f21ad1e5298b8dd6bd24e0793a2a1b40ceb1d326. 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/BX2IA2400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8e45a795cb0ae1fad010e792bf6acdb8142218ed57bf7a88cc79122ba52b96. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BX2IA2400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27778b7b8a7d848e7cd69ca97c81fa567bee1ac49d5109929c7c695164db105. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BX2IA2400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e159343a3db0060b20df1128915962d951f066a0c6cb51f86790e921113d073. 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/BX2IA2400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc89ed38b0b7a2dd7f9f1493c7dc15fa72b949b8ebb21e8465a3808cc497a2b5. 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/BX2IA2400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3279d7bdf63f41fa05cbbe8115dc3daff420a77ed0a05aa487239c5a35f17360. 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/BX2IA2400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c618bfb270073afbc44c2fcacd439145bf2d36d0aecf08c4af9f61f2862fde5. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:00:18Z), 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/BX2IA2400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2d26d7308e894ebaf792dd6fe486beda61564a5af91bc3397d3ce4177219f5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BX2IA2400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b16f61a52e5a8479791a54b8dc167e9e784833f1ad128e50bfb1320c94ace7a. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:46:39Z), 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/BX2IA2400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988646267cbde269a4fc4dd84b849b949ba2b1b4d91bbd54a13d12665957d4d3. 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/BX2IA2400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1a71b7288940fe02828f2d50a70cdc36196dd9299128b3fc22abe9f6e3e9e8. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BX2IA2400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8e45a795cb0ae1fad010e792bf6acdb8142218ed57bf7a88cc79122ba52b96. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:11:08Z), 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/BX2IA2400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a5c33e09fafaf5ad7909d1f21ad1e5298b8dd6bd24e0793a2a1b40ceb1d326. 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/BX2IA2400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a328062a58c95176646c19af8f10e719e6508e15823509d3731b80d2eba8796. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/BX2IA2400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564d9a361af83959ce613284ccfdfc537a211259a413ab2e609112d4a478c2cc. 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/BCPJ62100002.