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 0x04b5d3127722cf034d9bc790a0257ec2956f07795cd2247d95bd8c0314c486a8. 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/c00930c2-eff0-4b65-86fe-f180d20c2317.json and https://artists.proofprofile.net/proofs/artist/c00930c2-eff0-4b65-86fe-f180d20c2317.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 0x7e82aa68fa61c6a0f0b7878452cc56fa88ceeae7df5a46018aeafdc1198db329. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:41:38Z), 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/USA2P1421572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026db4f00b1f9d20ca5afd299ad5e43a084178fa7913194ace0940ad681d7f28. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/USA2P1421574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53084a1388ed826c266838241bc1efd6881970c813278303764f49c9d3113588. 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/USQY51604272.
Pleurante De Joine - The Russ Liquid Test
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592947c7fdcc1e6c27de5c53093e5ef620319507d29ab043937469709ecd28ee. 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/USQY51604273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb12e4b9f7aeacd228c0d15b3b0e6ae243abbeb51f378bda8343c51a0eab9696. 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/USQY51604274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871033bf98f9c70af57e76b71ec39996514cb2c492e92b1e43a5348616d29a44. 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/USQY51602267.
World Gone Crazy (The Russ Liquid Test) [feat. ProbCause]
Communication Breakdown (The Russ Liquid Test)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86398848f26b3f66ba16aeccffba862d9da132f8d4b00856eb77be8a8c74f70a. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/USQY51789933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c368b58fa7ad1e25731100859a422fdfcf7dc04ab06cf4fd968dff5a27526b8. 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/USQY51774334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5851374591c4e32de32945214022275767391fb31b1c2de4c9519f16edf382. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/USQY51789935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c7080b07dc522e5cc89bf5889eead88e9f6b5f8c004d0793b38700447865f1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCADQ1843899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99e04782082a918dd3045d85f82963c3feaeb2dff806cd50b72a90ad8738b6c. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/CA5KR1838347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f60d316ed80ab43326d673658495f50cfe921e4ab3036e486c53d05ef74ec9. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/CA5KR1838348.
Habit (feat. Russ Liquid & the Rapper Chicks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8058655652126c2363b912b9d811bcf62ae7fa1110df51772b17f8e4de9b4f32. 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/QZ79W1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b8560803224270ace94fd6d0c9ce9565bab3564efa256cdf6d4cd8002763b6. 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/USQY51745351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ba58021e86c3c8ef3662b4a2f71f014fd1e23eb6c819d825c020c41605d6dd. 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/USQY51614414.