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 0xd384b53088bb13ee07abe49dfe73f0477ed8810c5015f4e199aa2beebdb88d90. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0901787c-14c0-4673-b2e2-e62e1987c38c.json and https://artists.proofprofile.net/proofs/artist/0901787c-14c0-4673-b2e2-e62e1987c38c.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63510866fc0734c0a21364540bd3a04f03dbc71ad19bcbf59edd950b0a428428. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/NLHY51000148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48222fa02283de1dc3bcb3decb460188773aba05a8c67db134f05b41b6ee87fb. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/GBLV62007943.
Illud Divinum Insanus - The Remixes Complete
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79f79857dab6ed08fd621b1fddcaca860abce61a3db716153d7c212bfdc6b9d. 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/FR33T1125626.
Ruffneck (still) rules the hardcore scene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cbb2d70f1029ab581e84fff6ca6fe479909692e77b8b0d3e8520189ff75c93. 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/NL1DV2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79f79857dab6ed08fd621b1fddcaca860abce61a3db716153d7c212bfdc6b9d. 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/FR33T1125626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab557609d6e35d016beaa59883d046abd6904ce959e970251fd106d71842c42. 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/NL1DV2400031.
Who Was It? - DJ Ruffneck Khnum VIP Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32797b76da3adc025b263ae90517a93f34b1a206382e2791e3210aa6e59fccdf. 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/NL1DV2400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521f393938260fe991efc1ab4fb2125425701084108f89d170f23ebea6ced5a4. 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/NL1DV2400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bac4e98b63b8abac17397cd6ec9571862dac4b5e1d776883daf0b8a4cee1274. 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/NL1DV2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f7ebd6924be7db3406a5471262b2293adfdcfa061688ec20d50cc0a2f2662b. 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/NLS202300369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ef93ac3337868f5e851af5ac84c199b7c8168d714269ddda0185ad20f25f79. 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/NL1DV2400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cbb2d70f1029ab581e84fff6ca6fe479909692e77b8b0d3e8520189ff75c93. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL1DV2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36e420515e0ff38ed3268099f54230f8f46c62b1d5e6c21cb2ad701d4779c5a. 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/NL1DV2400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772e806f72d868fb4aca5691e05de0c519c6dfa65af9a72791bb0e7b044fc975. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLS202400396.