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 0xa44cffab677d2afd1020435518129b808f06b3f4ed95a731d5194816a93de752. 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/eb9c98a8-4203-4d7e-bad8-cf343cadddc7.json and https://artists.proofprofile.net/proofs/artist/eb9c98a8-4203-4d7e-bad8-cf343cadddc7.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 0x193dfe4d9a29f07bf04af9e88c0d6fc386e8814e2dbbc6666bab6ed40a31f6fd. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/USA370949197.
Eu Sou Desejo, Você É Paixão (Right here Wating)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82abee782776df5bd7fd93fbd0b6bcf7e1e57a9bb87a2e9919a2b40ca18c99f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USA370949198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8576ea540f4ff8ebdbae383af2468f4b1fc2449006c9251cd3f68d0885024321. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:43:39Z), 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/USA370949199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab01124d57c06d96e724108b547b09dc712fd27b28bfb07314866a2ff008d3a. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USA370949200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009ecc8a5175b51a7ddf1d0cc8a64c32c33b9743c983a2c362615225bec9aa29. 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/USA370949202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc922efbb4386cc1a9263a045c5556bb10ea849afb2b4053bd53ac5f0c84245e. 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/USA370949203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cf4f390d08a38f11a17f48c74dc982cdd353613421be29b8081fdef316ffcb. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:52:25Z), 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/USA370949204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aeff1300632d747b4ec6ac93bb4a670006e29f8bb669559dd0de13a717d4c53. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:49:17Z), 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/USA370949205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb629f6576d95605f6c63728b6384ce8a6f9b8579dab06ab9263f368115c179d0. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:54:22Z), 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/USA370949206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc8a7da574c30820637d0f065f07a4f0d5cc444269a7a69b7111ac93010956f. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:51:26Z), 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/USA370949207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b91de1430c6b02249266b70cd303c9adeab162157022e3ca9029e0a35f7a140. 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/PT7EX2200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4e05c200f7ab34a557e4dee9c3c45a24d64ba97d958b61463809b4cfaa95d7. 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/PTVI10800658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fc83ae51295bd3e51936642e1cb7a7d7e7feba74fbf747bb31fb014ac9dea7. 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/USA371108320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3112912b13a94cee3e0da4cecf1454ba1fa4231590da3fdb9f012408297c80f. 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/PTVI11000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46383e504a07a0962b79e8b2e63d59904aa05dec029ee5af8f40ccdc4971c95f. 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/USA371108338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa58d2eda67f2276d471aafceab695d0e000852f95b7f4b9fe43fc938633c41a. 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/PTVI11300579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03636cf7d766bdcea98b6c13858f7c4c9d17747bc6ff5e1d48451c10af8fa31e. 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/PTVI10900242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bb1080d0eb4c60a785e2ad12bbb4c495f8d31cff11b8c42cc3291a37728c39. 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/PTVI11000207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3112912b13a94cee3e0da4cecf1454ba1fa4231590da3fdb9f012408297c80f. 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/PTVI11000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd535d5c8b5c01dcebf4fb7310675d40614151d3bb6db117c76385d3b81664f. 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/PTVI11000199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9783a6570ef480c99b2ee8f687b186a14b489c5ea4a7e75b2575e753f33e8d02. 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/PTVI11300683.
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 0x03834005f73ff780502391d01d14b5cd0d12fbf6501d8d134abeaaf54c2cc9f3. 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/PTVI11300679.
Kizomba - Brasil, Sertanejo e Latino Romântico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb874a6acd3c804fd1e6f024be5577b255480f274c51f6b4cefb8220b3c7dc36b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USA561048953.