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 0x37533cc7281d60393cc74e916899d4fc788652b4cd4a1780daacc61d4242328e. 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/0e3d2b50-d79c-443b-a142-d2dbf1101446.json and https://artists.proofprofile.net/proofs/artist/0e3d2b50-d79c-443b-a142-d2dbf1101446.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 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 0x4cf01c6086ee07d66e534af8158f1c26558ec64d394d8a9662cd4a5cdebb38c7. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZ5AB2132625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42d9d4bd8ba300bf3007c01b3b78b49e19ac9a73cf67e329b765807ebeeb2cc. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZ5AB2132627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797dd5f8914a6ff0e0f45bd124299d422bc548e45e5d9e7777f85d43a2f73287. 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/QZ5AB2132628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed766c1ff115caa76f8357593415356ca8d3531699f1889070620a1362cef7b1. 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/QZ5AB2132629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4aeb6060934d32a966aa34d4f2ce83b8cc62f854250d7145603da39a67aa29. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZ5AB2132630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9084aec44673101411d0b1af7a94880ac4d9f864e561ea9a0b6f2046904fabb6. 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/QZ5AB2132631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d068dfb4db75f7be006406d82663c87a1525fe9a6013c782a8f31d4db155bb1. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/QZ5AB2132632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c89a8fc2e427848b57fc319fcee6d5930fd9f5c805c7546c9816e0464a8bb86. 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/QZ5AB2132639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87827a4d6c0056f10a0f87b8d902bd3f12e2636d11cc16c4723f332ffe1c7863. 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/QZ5AB2132643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c6dd41ab1669ce624992a8bef48194211dc755e36386880555aa3710820e24. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZ5AB2132644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d044ef1408fb6f395af42fbd89954dc5f84483d4ce730c6019397c8c7fb9604. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZ5AB2132645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180bf29cdc98c570853d9ae34a348bc2fd5693b8045ff5d8d11f2e7f8fb98ee6. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZ5AB2132647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527a8b1a8c5ca40ec5c23714119ad94de25c6d36dd62eb67bb295ae2b665d757. 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/QZNJY2175072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffa343a5ace877bbaf0087b500a66bd2b790726a17479734d1913816a132973. 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/QZNJY2175074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63de8153c0b541264dcace1d0a853ca5ad5b9ad2020dadbbd188a00b1a35f1d. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZNJY2175076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c18fd47f03edfef1e9a8ed09b45f4af829511e0a589a52586eb2969bac8884. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZNJY2175078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa1fcc3f3de8edbb238733cb997c234e20f77e6f79a8d0b521022d72779fa1c. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/QZNJY2175081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7680df31bec984bc22c63a7cf8a8edcd6a2fc3ef78d451b7104b4eb6a645ff06. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZNJY2175086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7e350d917566b75f97106dbc3f98d7e4701175cc0940bf65bdf54474ee4685. 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/QZNJY2175087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b5d0fba47a68c3411cd5c3269c7653e241f34de75e0dfe109bde605490404c. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/BX9G01900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0180b0b81486e9929fe3501ae2cc973309c88bbfdf131f222c5cbcedc000f4. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/BX9G01900021.
Louvando Na Umbanda De Direita E Esquerda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dcf5d2cec206aed0f4f06d151d4d34c1daa8f45557b7be31fd3d05b798bcaa2. 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/QZHZ42176611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058f02ae75074f1c394d1dcd1f4392d4e8e8171882199a6e3c641f039bb5e650. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZHZ42176621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade687c12c22ab2fead89b19eb4b667ed9c08ed1f6ebf53903a6fbbc50ea545c. 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/QZNJX2106653.