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 0x23b17650ea46898fdd0c64df73c008375ae2fee5ab5a1f2df2d04ff38d6dd34c. 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/e1d56708-c9c4-475a-8899-22f4c99854d1.json and https://artists.proofprofile.net/proofs/artist/e1d56708-c9c4-475a-8899-22f4c99854d1.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 0xf36d9d8f5c6f1e4a481266506914c2f24df19cdbdcc67c78a3e0b6a8053be7cd. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/BRTRB1871170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd2509e55b68cb993f03327bc3ad40e06f7c7f15e2f5e23b0d1b433d83126a7. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BRTRB1871184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbcc98e392bb753973bdd68e812f1c400da9b908296ddebddc0ffabf758a32c. 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/BRTRB1871185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6072013000384c145cf8e7a09057d0e5f8993fcc5f26766035341e210a0f6f6. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/BRTRB1871187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6661de47597a5073f5b7d041c2e2e5f5d0ccec2d9a0a0583355e99fb95d566c9. 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/BRTRB1871188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4bac7213cea9f1624b0e0da6137bcc919a675e7b39a0bf44dd501df1fe7e53d. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/BRTRB1871190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3414c1998aaf4ddbe3fd9b64ebf0a7f8b9dc4136a18862c160517e2068f7d227. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:22:45Z), 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/BRTRB1871191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7e06fbe0385d0170592c89d33b28ae8b76b29ce379abf025ff15f3ab2b6c65. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/BRSTS0400426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb144b31971a870127078eba79c215a0960cf4228acedfb836a0668fc6f831dd4. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/BRSTS0400427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedaf151cebcc865edde1599dbb577c74bfadf8003de10d55f1dfffc42d9277b2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:44:07Z), 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/BRSTS0400428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1421a16d92795140c9fa820654b314b1026bc3da4a5695c2281d1bbf158702ca. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BRSTS0400430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52285107e532ce21387fd854694761dbeb59157a67de703bf7edc552dafc538. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/BRSTS0400436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f37bc851ee3eff0a73dc49e7cec78b6317bcc936bb2bc43f2701cb591236cb6. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/BRSTS0400438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcadea10041a95a299bcd12a5329319608b06678b9a66a9348edd67ac7cd283a. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:32:42Z), 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/BRHGG1000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189a30074cebecf1bb4f31bcc234865b9ed3d8dcbe964f2aee38fd42668e2dd2. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:07:21Z), 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/BRHGG1000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51c14d50082505acf38fd7e0f76e0c48aa5427f375ddc9d02cae43cfef650d2. 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/BRSTS0600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3e38102a31d96a7ea1c792cd4c4b0a580aee70a50b1e8a012807cc232bf5f0. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:08:49Z), 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/BRHGG1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ff8e7333ea80600b4f525c2b65a8d29d065010637fb6ba68f7c140b96d5c43. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/BRHGG1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356a21793ca7b639704dd2a3abb77acc35b8c0bcbecc9409fbdf5f9f7fe9f496. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BRHGG1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85eb20d5c5cf3e5c4faa905fe7e7bf7537d089402de70b1d6664ccc24285d44. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/BRHGG1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11b3eb49b63b741b69880459c6141040d5af4c43f5c054cf26ee07883591f53. 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/QZTVM2506430.
Brown Sugar (O Ritmo e o Charme das Melhores Pistas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51c14d50082505acf38fd7e0f76e0c48aa5427f375ddc9d02cae43cfef650d2. 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/BRSTS0600030.