1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x8e5be92487c67c57d6f15e776f2923c203aea5b5c108e952bbe8d98bcea75387. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79a5a765-b716-499f-ba43-05c9200d75dc.json and https://artists.proofprofile.net/proofs/artist/79a5a765-b716-499f-ba43-05c9200d75dc.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 → block OTSBitcoinBlock must exist at that height 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 0xa9130b222dcd6f0de1a4710ebc8fdf3a686bd159e1b315b0138a8cfc5424d778. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BR19C1600049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63450b0794c8ff6febe5d27df12cda5e66b9b17b97b390588fdafa90dfdb96e4. 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/BR19C1600051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed18dab0eea1769ec1c207a4798dbfa461f0be59ef1a821af1fd19f5484c7f8. 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/BR19C1600059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd2b4c4a3ebfe252597a7cf22689865f37c443b41de7e58f0af5ca16c1f3fb9. 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/BR19C1306064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccc1a39eeafed8f6292720c7142413022921d21b7b97b1697e4bc32b1993e2b. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/BR19C1306066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fb5a28d0becca3ef2108440999a39e11e017a33b0b7fe3207508c1b65abb3e. 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/BR19C1306072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29467ee7877491fb7ce2118219af2810507904f130512f0ce7e3fe46969f5ec. 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/BR19C1306082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa1ace2701c010b569e9d34bc5aafbc08ccefd222e07c74b574104aa7ca1e66. 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/BRI9C2200802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8477a5275a2eeed04eae821e6d08a3c77c94879de849c73da0b1d8e6960afeb. 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/BRBGC0601354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bcadb277ea631f40e1be250a8a1af807cd7ab88d996ad524c2ed0743ecb2a1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRBGC0700214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382337f9c5521349f4e1b76a78d71bdb1924104c2143b0f825d19533cb1e9167. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRBGC0700218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f1cf2d3b1be428a7917d3bd0adc3656afa2fd4e44781f75782f1f2acdd8aee. 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/BRBGC0700220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7f80e1ceb5e04c11655e0ebf31a97227e846db2a6e50c4336b5b30e33de405. 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/BREMI9900076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cee624d5bf5f23d556f3f61046d78480a2931abe430016a496bcd55b19bc78. 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/BREMI0100119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7507337ae8886e13da3d1348b771d322dce6078f5a7e41d78e4c80c6d168ba27. 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/BREMI8000144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b9ae80f9f5b224ba82d7bd1d3c22e5e7cfc12b575855fe0e9f6952e919f62b. 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/BREMI0500275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd029c5b73a7629d9858d16955da5accae05f13bdb448f311c7ddbff24de72a99. 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/BREMI7100144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea29496fec8ddaa29f8cb9afd044e8119d09b7489a11092fab5b2459376756d3. 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/BREMI8100291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfb153de8ee2c9b1fa7eb27d98340d35360475d6fe2e3545471c1a0f741b33f. 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/BREMI8300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7f80e1ceb5e04c11655e0ebf31a97227e846db2a6e50c4336b5b30e33de405. 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/BREMI9900076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef37c3456db493552607f374635cbc0d401024205f025bc079b9eecae4a3533. 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/BREMI7800116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5e69adc1ce849d71342bb328c771432e912a147d7e1b72507b21ba641fa39f. 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/BREMI7500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7507337ae8886e13da3d1348b771d322dce6078f5a7e41d78e4c80c6d168ba27. 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/BREMI8000144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd029c5b73a7629d9858d16955da5accae05f13bdb448f311c7ddbff24de72a99. 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/BREMI7100144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751bf79e436e0e5ecdb809397c5aa1ab96fb3a416b8896e6a31a9719cc9eb3b8. 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/BREMI8200283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bfc3e9b85644b4b7f5b6e56381d457c15d659d881f4e6fcf5f20576e2a2e21. 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/BREMI8200260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea29496fec8ddaa29f8cb9afd044e8119d09b7489a11092fab5b2459376756d3. 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/BREMI8100291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfb153de8ee2c9b1fa7eb27d98340d35360475d6fe2e3545471c1a0f741b33f. 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/BREMI8300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26547817667194f41a9cd16165fd8d2fb93b5e895c79299878667b2e0b8ae61b. 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/BRMVP0500251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d9d542ef2b6987389a59bcb0a9fc5ba7da42838082d056a716ef470497d3e3. 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/BRMVP0500254.
25 Sucessos, Sanfonas & Sanfoneiros: Mario Zan & Seus Amigos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22001ae40a1433a5413c9e7b04e570aa76b022b6bf7b643e99648c18192ac2a3. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/BRBGC0601210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770d97c6c8efe9bdb7ebceb46baee16e5ddc94fa88b4956970b05e556ce8f06d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BR19C1310873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4efdf34029ef773f809972a42e3ee0ff85b9bb62fb72909f54eb70b9d8bbfca. 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/BR19C1400387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc01e32feeceb3a94fd3ec903325435425e45181c9fdff8409644d9eb6a61f37. 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/NLRD52349518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573b769058538eac1719cc92b7ac2bd4b831c7850c00c4724a809bb1844f4d0e. 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/BR19C1300083.