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 0xdbf897dd1cb307676f42f42fe97451e181a36449ed1dd650c280efa37c4c0409. 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/3cdeb5e6-d92d-4553-adbb-4908863a6ddd.json and https://artists.proofprofile.net/proofs/artist/3cdeb5e6-d92d-4553-adbb-4908863a6ddd.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 0x3fb0b4e4b72bbbb3d0b1cd31a6cdce1fca93bfd6ae6a8cfe0dff430f9a065401. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/DEOV41700733.
Return of the Bloodsucking Zombies from Outer Space
Return of the Bloodsucking Zombies from outer Space
Decade of Decay – The Gravest Hits of BZFOS
Decade of Decay – the Gravest Hits of Bzfos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe058515faf56b32d666d006777be11817acce14b2a87684a1f9731ed571628c6. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T09:58:34Z), 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/ATSP71200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d76dced885bb9612613a6cf996c719b7a450374da3c136cf8bb8d50863f810. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/ATSP71200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338994a210d722829610ca8ac8712509999ae4461c8277b754a9920213a653b7. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/ATSP71200107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d166771d65e928f297be2f0ba8731e595c7f711e2f8ef38a1ab0e227bcccd44. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ATSP71200114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ebba7e3788db781e708c9b0a0ab769ccf7a68ba3b2bead3b62725cb9165c8b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ATSP71200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62d87a6ee6965612a54d9f75756af3f5f6bf2c7ecdeab950b737818c62b30e3. 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/ATSP71200305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ee25c0a797abe18eb3bb79ad3bebd26f7b4c69002c8c1fbeb7e1d8f5dff7b4. 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/ATSP71200311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd829344664127831d978c16b44b2da71a7d81009b6862eea255e37e0790915e5. 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/ATM961512801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3192a89a4f59b03453bfe6c776cd6323d41b534af7db425c8e990ef59889264. 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/ATM961512803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91961b561ceea99a98801037a6129266da55dac36afed1c8c68760a254a02a3. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:18:43Z), 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/ATM961512804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf529810ba5091d840eaea1620c416bdea84c73199c167e3c29fb9312128e9eea. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/ATM961609401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37018ae48cc95d0772d4a6739c18cc6a3050e3e8d2f82dd3c70044d9d405421c. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/ATSP71800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf773439ddbea34268f1f76bc5fafc2705d5abb5230727cd2dcbb22215e941ec2. 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/ATSP71800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1dae9096c277f91bd73d279ec134c97907129796dfdabdebfb9a1c132b1340d. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:44:26Z), 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/ATSP71800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f21e931b9536499f051ffc50a8f30c8c3d635ac6f6a6af37a1904e3e69697f8. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:09:33Z), 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/ATSP71900001.
Stop Writing Songs About Your Girlfriend
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350c0a3c1404676506b5154465bd6889b3722d2915eb1ec8023486377fdd703d. 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/DEOV42500981.