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 0xfb2a45ee3ef43f7eaaa59650d72d6f319e918b02f8e0ca0dbd5d1b3ceb5a7433. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c7e30e7-329e-4913-b258-d3cb92f6478d.json and https://artists.proofprofile.net/proofs/artist/4c7e30e7-329e-4913-b258-d3cb92f6478d.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 0xce3b85a7d20767e209c53a8beecdc5ec4f0696d11df2f82c72ba693d1f232f6d. 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/BRWMB9801367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1baf4a6d0f14b18055398026390c6410b9433f8058fc1a09c15de57d3391ec84. 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/BRWMB9801368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b4de12c6a35738de149f0d9fb9ab97168403dfd5588ea15fa33e5b03649b35. 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/BRWMB9801369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2934f8061dd6e8e3f83d0f7eeb98fea6a5fc20645c32aa4067d7634e22a841a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:00:31Z), 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/BRWMB9801370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fd941f875c31ade276331fc5ae1ebfbad94b88b442fbcf18a1859490b60adf. 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/BRWMB9801371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b773b9dc302bbf0acd6f6a9e35560e1dcb0129c2ea3ba0afab93c3011112443. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/BRWMB9801373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954823ff5134705626f54377ef40d5d4dd8bfff899b9cf0789e172375187088f. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/BRWMB0300127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69170d34b9a7cb57de4f284cafbad19d85203cfe49fd7471314b1ac5e2a14c8b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BRWMB9801375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca191f1bb7cd2d3f17109a8c7b79cb1935251030f5d9d66f77509ad90610cf0f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BRWMB9801376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf285e2f80c03e1bad3f9c0f60e2832b86b935ef8dc79a4647d25614fd0397f3c. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BRWMB9801377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2181983fe8e43e93c6a7f7542a533c10fbc3b131d06d374ad68b24275bd5361. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/BRTMU1300148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb183542eb90b18a1a18fed254269a3f997a3866b8046554f2901bbda15ba0d05. 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/FR2X41749214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8cd9dc26b4beadd966301ae7ee74944aed25d06d455986ba2139df2beb9a80. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/FR2X41749219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb9ddc3eeb8cdceef2f8e6d4d6c63830cb4124c96bd52ee2f93f42348ea3eb1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR2X41749223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf221ebff067aa36a9db2813c49037050c4911c14abd8b7e320633ebd0a4220ed. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR2X41749224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb50310cdb5411d01625a045a8a9010071f5e1f77ae4c6f790233e18f90584e. 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/BX4E52011463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344e0af9873f3b424aa32b602da6e988e097834de7623d953f7f046ae1dcf065. 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/BX4E52011507.
Quem vem pra beira do mar (Participação especial de Poly e seu conjunto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf6da1c7ce2ef5d7403fa4382e36d1455ba57a3251fd35cb81f0b19792fd1b7. 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/BRWMB9700391.