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 0x32cf4af235407c12671731dd9567a1ea5e6c67a8e04de244003c610597d9757e. 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/fababd60-b59b-4190-ad2b-657741ad7a94.json and https://artists.proofprofile.net/proofs/artist/fababd60-b59b-4190-ad2b-657741ad7a94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Insanity Fatality 2 - Street Fighter (Slowed + Reverb)
O Verdadeiro Automotivo Assombrado Automotivo Rock Eterno 2.0
Magrão do Cavaquinho Possuído pelo Ratata
Bem Vindo ao Meu Rock Doido 2 (Slowed & Reverb)
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 0x633ffab0c982d9078d944239eb25943e5a1e656a3529b417dc0f9a895a4a8bf4. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZTVM2409159.
Bem Vindo ao Meu Rock Doido 2 (Ultra Slowed & Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f95ad619cb20930237aa7ec004dc6d7245344879353f1e9f42e3d793eedf9b0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNJV2569463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa70e068baf3825b0676fd1aa5bd280cac2986ed4890ca19876293268cae24c3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BCIH82403276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803112c83dbff375e4417b130434e326c1e3c34b415c05dd9ceee268160fa218. 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/BC3PG2500860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104c235450992f09d5cda5f429425daa6516cf26275aeaca7cd98dd1e4d06168. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZNJW2506633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3771ce7e1ab7796b18975d712bc196f92b3b3794ccd66272e4fffca63a38a2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZGLS2593689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496c84e2c651b6785284ff23f0fe9b8b4334d67aa03849624d4f8b06413f8e0f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZGLS2593716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4fc1cc2f94eff930db94e14d8f5dc44e82fd4a345acb1b96b116433de345b2. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:34:51Z), 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/QZGLS2593717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a6c3c0dbcbe34b62d5b1e6e150abcf68d4b01884b05aa376eb978af1cec749. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US7VG2584673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1483ca98dc99449b2d1c2c839ff49f1e98fef8e9f4df415d97e78d4fb95365. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNJW2506524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1774805669c1e52d4d5359c30c3425f4ca29f75ac263e0d5d4724488e0a8feb0. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/BCIH82201678.
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 0xc133578de0130ebc1ce0884559259b0a25411022990e53b42b4bb5614843f075. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/BCIH82301955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2d0308397234f5ac9e494570f301978436962e207a7adf1eeebb8d126d55c6. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZNJW2506619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0db306122fdfa2d6ddea9551a677e5640716000ce10b7ce0b2814597bd17c6f. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BCIH82404167.