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 0x450e005d80778bbd37fbcefc1054bc6b52c4be06f2d4635719c4c8eede2358c3. 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/fd6e621d-ae60-43ca-9650-0e0b5382c15a.json and https://artists.proofprofile.net/proofs/artist/fd6e621d-ae60-43ca-9650-0e0b5382c15a.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 0x39767fcc45474003b7f8fdb9454eb64fb7393cc9da277f24b6655e185ccc916e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:03:42Z), 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/QMEU31615199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f3c00d3274faa3eb5c390ae32356387a0d6542d5ab6f224c7b355b60818489. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QMEU31615200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7756c13062696361faebe78765648833fda56640ad42eb4ad19e1a4bfc6635. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QMEU31615201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b34d8e3d2b5e6808490a207ffcfea6e7ea6f268503eb0aa7cb4a5c60f20e04. 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/DEPI81904997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f5fa60a4f1c6b0d9bc099cfe9255cc5a5cc33f8e10efce78dc844531453967. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/DEPI81904994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7785f1b389297a34def2993a673b90e319e030c819b85a1c1b1c8112deafb94. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/DEPI81904995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b34d8e3d2b5e6808490a207ffcfea6e7ea6f268503eb0aa7cb4a5c60f20e04. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEPI81904997.
Cannibals (They Don't Care) [Zardonic Remix]
Along with the Gods (Piano Orchestral Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1118656482181b78af54c7ce389619aacc6acdc77b55d0a812925449f9b183. 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/DEPI82112605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3707e5409dfd807a663813e6d1741661d04d33761328b825e19942a916c958. 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/DEPI82307093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad5e10a1ea0cf9eca8f8a80701ac02bdd09a39b5d9f5093e9ffae63610f7e88. 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/DEPI82307089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bc647fb0a93cd9d4647865e964af2159d0f0bb9dc3efd13446e414eaf7f7af. 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/DEPI82307092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3707e5409dfd807a663813e6d1741661d04d33761328b825e19942a916c958. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEPI82307093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedaf36b5e17c781c62d954386c364965afcbee0d0a2c185c504b2034403501a. 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/DEPI82211538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93e3219e3fc47ff497b12e02cc45384e478d148a7c2db13c2626433ec7a7a13. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEPI82307094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b442de8315894a6eb893bb2af648b1f36faf35ae4ffd1b9221a05ae64480b1b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DEPI82307095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c0914e4e507b3c5f789a77a14519674bdd45983366faa517a5117f53abaf1d. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/DEPI82307096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997e235e4a73b2eddb40eaa152e2006559778225c214feedd6aa5788b85295eb. 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/DEPI82307098.