{"copyright_id":"0x8d23a7b22dc58c78dfbaa937d2e0e51f3f822c76e2951cea87bd4ac5aec0b8bf","name":"Anderson Mário","registered_at":"2026-06-11T15:23:43Z","symbol":"NIM0062369","token_address":"0x9ffeb922175e1cd1b4e9c7cbb8de889ff004e17a","type":"artist","uuid":"2fdf7dca-eb4c-4a23-bdea-0bab49217300"}
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 0x8d23a7b22dc58c78dfbaa937d2e0e51f3f822c76e2951cea87bd4ac5aec0b8bf. 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/2fdf7dca-eb4c-4a23-bdea-0bab49217300.json and https://artists.proofprofile.net/proofs/artist/2fdf7dca-eb4c-4a23-bdea-0bab49217300.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 0xdc43769e1100e3160bcc64bcc868279af7ce709f1579cee119944be0000f99ed. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/PTVI12000536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c6a099ccf3a9a40900b40e4e8288a2eb1f6164c69acc4f18defb5d8e0e1bd3. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/PTVI12000537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18124d4cf4397d0c655ffe07adbb431bc2b277bc3486f81fb1b5a4e25bed21c5. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/PTVI12000586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4f524a80b23f5e273fc5f647606f40d54915c42bbaecabbec3d0f9293136de. 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/PTVI12100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078cc1853714ecc997c4cdc15b707d51df194d49f7d5daf2a85b55988d86508c. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/PTVI12000538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c39d6375861a54ac9909e79e9a95f31c331d8710da7cbf6d78235401176108. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/PTVI12100339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e3881c275ee96d1b130cb16ebcf9eb6ec56819ea5bbdfed06aa4387a4a73d6. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/PTVI12100340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c24bdf35cc76fc821dd32fab52f594ea79e41cc301cc94789429482f2ce58d. 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/ES71G2303019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e388f07fc4cdefd7435dc503246f056840deefb7937b773b9557a5af26ce976. 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/CH6542206920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8d8d34d8e7aed78b9343003ba1257ee0e0e8db999f93bf311e95da96840116. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/PTVI12200251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f976eaa2899fcaa78d9b29da801a5b014356caf323afee0ac2e505186ed37f1. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/PTVI12200256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a60d72c3be3358a77afa91f020e55c6b014134a61ed2057d3847ebda236d05. 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/PTVI12200254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b9f2da3401c84f374e4eda2254e24761dfec3e02b091d2f929ce8576e5aa4b. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/PTVI12200255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802f313cbc539f1bbd6c53da9a6508919d473217e6f61f0dc76f213224b9ef5c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CH6542323419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a0530a37a1160a3aac16d5e207ab1d537184e8a79839a369d22effe83109af. 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/TCAHQ2356647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a21f92375a58cd5b74fde87cc9d4fdd358555ccc730a71971a88114f6c69f4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZMZ92335103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cddb474debc8ffdd708020e8f4454bcf3d8b084680061d57b1a13f3f46f761. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES71G2329899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb059bf8b56f699b15ce5bfb051e829062637061863e34f585474656b2c4d4077. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DGA052334410.