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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 0xf139fdbd50901968a597d8a62d1889c17d4a704d86c1ce94e05f1d3b67a7fa70. 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/82cc6e17-43dc-45e2-9dcb-95d62376c57a.json and https://artists.proofprofile.net/proofs/artist/82cc6e17-43dc-45e2-9dcb-95d62376c57a.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 0xa8ca1e329a31edef41b9defd9e57739aa669868d1a265069f2fb23966951ed9f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM10204613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf710172d2ff3b1b5ce71bbad0ae02b37fa96ed7ff4b939d81a0c4062c7dc3c81. 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/USSM19906490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cdfc4c153e67748cec691e36f25d94e4b0c17aefb5f5e0931b84b6b211c3a6. 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/USSM19906492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dec213c8434830a1a9fb99c334c15dabc4c83b02ff7a7eaab519745dc7f93da. 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/USSM18800406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d33a533a8db9b7da9e432d508bac16ddb3442e5e00410a97f929598ba0da88. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM10203243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa506baabf3437487012ebec583985df7209ec1786bc691fc25f6b5055b166fa0. 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/USSM19906495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac97f25bf21b7c1570bd654257ae85ef3be8a0d7df570723684af9d42bf83d9a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM19906457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6e60dccd6ebca911872d37d7f4442a3f1ac6a0ab5a6637c75ece3c7d345657. 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/USSM10114648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3892f1cb0347744a337257a7bed413491fcd931264132b814d0b151cf99bd67. 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/USSM10026369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4df9f1327e2697908f6d967076a28986c8f13c677ea7b3f1ecb5da1b40d7e70. 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/USSM10026560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89407a0af8fc1240b014c453f45d574a71ac83e9032c2026224b83d8a482449. 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/USSM11404999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8024a5c013d69c569a1f2462c181daf4177f99477a788f9f463a3b080ea7a7f. 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/USSM19907118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a9a52012c9ec40074d7f402687b731a8cecd82ff03e919ab733c278051cfca. 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/USSM11400302.
I Feel the Earth Move - Seismic Rhythm Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d4be98e3b4011656654198a8213de0ddc8719effc8fb3b7b7d45d45100fcfc. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USSM11404997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931ecfd3c3170b9be636b0c72d209e891653de2f68951d3e5a4c5c63c5f84a6f. 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/USSM10415068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89df9b8e05d843803714388c6c47568be43b46db03142c850eda9b1f848c78b7. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USSM11404998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8024a5c013d69c569a1f2462c181daf4177f99477a788f9f463a3b080ea7a7f. 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/USSM19907118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dec213c8434830a1a9fb99c334c15dabc4c83b02ff7a7eaab519745dc7f93da. 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/USSM18800406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dec213c8434830a1a9fb99c334c15dabc4c83b02ff7a7eaab519745dc7f93da. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM18800406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a9a52012c9ec40074d7f402687b731a8cecd82ff03e919ab733c278051cfca. 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/USSM11400302.