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 0x751704fec2602bea67370bafe0d3ed2ffc4924a1793c14506e46c9d419f73fd6. 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/fcfa2cd7-cffc-4977-b80c-a1690c70670f.json and https://artists.proofprofile.net/proofs/artist/fcfa2cd7-cffc-4977-b80c-a1690c70670f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O Sangue de Jesus Tem Poder (Corinhos Vol. 1)
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 0xb91f9d6f355ce487d0841cad0d783a2d0cf5cbe8eebc1ad0993253a9b5ec709e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZZ662312912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d92b62c06861254e3086d08a69cd70a5fa4d295120766b714032db1d153123. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZZ662312915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43d8cde9f204bc48c36a907ad80b09c6580d20e5d84420ec1d9e81d948b8c79. 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/QZZ662312916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988e7a449c9a079b90431fe36b6d0eed41aefd1fa58fc08f1a7fc74061185381. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZZ662312917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba06ffe643e5f79290225b25956e6debdb1ca94baea7b1944b3e4914e593895a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZZ662312918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9feffc5894e002274fa8b8631505acebf3a4a9b250948b4683a92f54c377a893. 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/QZZ662370644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e85646e0e3c9e66e55674fe5929b1f3d3a7ed35070c9758ffc3302333277f1. 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/QZZ662370648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef6847a68a2ab3e7c913e6f02879513b356f3ed56ab6849894979c8a7357677. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZZ662446367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f07f80c88f9e87329fc1392f31181e94bbe550c3d190be459a9403e8cbf6963. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/QZZ662446375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413806f109d5362958c3f253a2b2cc104dd5a7043c8ec70ffa4e2a3bb9e774ca. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/BRSFM0500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec44c12ba17db4f987bb96f910bcf719a401e08347f895befff9087753374a5f. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/BRSFM0500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4204915e0368e9c4f484dcfc1e459cc89abb7ebadf1309cba65e00f7e4205206. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/BRSFM0500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29740943ea70983fe02a5f201e1d6ef2a0cab1b1b71142cee782f031367ff09. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/BRSFM0500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0055f1eacb71da7bb0f8d0a40c8b9762f2d9ef24a617861e48540620bc0ecdf1. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/BRSFM0500106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f25cc9309095dc1a037b5e33ca3ddc3f81b9a7def5f5f7a78b8170cdfc52cb2. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/BRSFM0500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4350367565b8f9e7ae6520d2ff6ca6089af5ebfa0eae80197fddc08eb643e210. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/BRSFM0500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171760a7e3b9ab9b55df9fa7ff6c18b1df2150bb931ad8e71a68fb8d8f2dd77f. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/BRSFM0500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb053ede1f670d8f0674f4ed9e3e9a66a8c619ed54b172bed5864d663b6dbdf25. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/BRSFM0500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f29ebdd0f064bad0d87cf7f60b63699a8cfdf7b834573c5a89b20263b2deeb. 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/BRSFM0500123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248091db64d67ff1651976fc0edb5cf9b93d46e3a238a12f789a03efbeb53260. 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/BRSFM0500124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fa78c6fa9f6d126dc61e9a2ad756fd3dfe65542a8189451b3c027490a9346b. 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/BRSFM0500125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e3e39f2e4f9c2115b310e24facd41f344ae1995c674dd2febb1c1837ecd862. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/BRSFM0500126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2059352a81ed66dac535ff3054a20219d8f3498ab97c9bf1fd182902cd8602d5. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/BRSFM0500127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92cb626ed12689faa58ad0d46e86676881f09a1850a27bac48b5e4b48c4171b. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/BRDED0500076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85b3f9bb75b66b534fd4fd15456b75445ff03ee2387739b9e721de5f230240a. 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/BRSFM1000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd2ffcda65f9e8d49324719b6a5ea7d5fa1e52f2d8bc5361b67f71ee2bbd59d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/BRDED0500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539a53f438b493a9a49f8275e95a9bb66f926125c5832c8a292c564959ab0fc1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRDED0500082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12980deba2cc264f5fedc6f1105d8516542578b06436a818930f0667e26b8de5. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/BRSO52000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a9d56f7481d78c3db7bb86a055bdc070464e663d009b882497e7b78058caf9. 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/USHM92132020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08682b60ecd2ec2705e9784d581b6952a0aa80cd1bcbc314f0ff4dbff2e3fe9d. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QZZ662370628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48453319b5d8cd741c5a6c5c5f1cea051612773828055f7d47a8aafae0c0607c. 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/QZZ662370630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51e39331f9540c41dc2b72f5c2d058e557412403292d8ab1ec350528f6845a9. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/QZZ662370632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa171817d32f9a5ddc98b55bcc4a5a85f0248bc7aff468aa04c7b146c3afbde72. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZZ662370633.