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 0x70e4bb7c70c5e525a36da3804d1161538b281fc48b99d920f2c46b23e377108b. 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/38ca497b-a0d1-48b0-b77b-330cb29ed248.json and https://artists.proofprofile.net/proofs/artist/38ca497b-a0d1-48b0-b77b-330cb29ed248.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 0x6233c3d2bce5126ce87123c97dbee25c89071eecfd3241c556fe3c580dc81d78. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZRP42335232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385092feb63b8feae48c7cf5260d483505d2fa96cc82e80131edd109c16d3810. 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/QZWFP2319314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897ec72fb96c27d95256b477c09872bf8de47b0b412cd5754a3e64121bca2c48. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZDA52434826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d860985f99438e8c13b96c7c238afba304ccb64c6ae50d8f27c55b65220a4bb. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZHNA2400968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafb555ca5225dcccdaa954092cdc28eb9cf3a27d6d63b5c32771b0df6d5053c. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QZK6J2479559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840283d2df01c01d92c6c0792acee5d56a0f5bfe83aea751ca5a7d11c71b3f98. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZK6F2481898.
Ain't nobody (Loves me better) [Stutter Techno Version]
Ain't nobody (Loves me better) - Stutter Techno Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac482063018cdf9023b3e118a79bb7b10830bf27305c627fef26a17f4398363. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/GX5MY2486205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06a3abdd790d3c0903fe3d8699cf484621a9b32a91c58efbaf6195a93216db4. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GX5MY2497577.
Need to Feel Loved (Stutter Techno Version)
Liniște, se dansează! (Extended Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd9b17a7d27814aef1589190ae97ad93e04c55054566ec8a1da78f5c1d78c11. 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/QZNWZ2553934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa3a46f07def9bc4255d1100c0683f2116111e892aa37712f738b1aa6c56c84. 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/QZTAU2519144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa045e513a6b2c01285754b05956b9e354ed262ed6ede4a3e2cf1c45c6f7ce58d. 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/QZTB62523585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc43d283270de76ecba710f7808410b4b3661936dc0541ea9e905c6558c5f08. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTBB2581537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddcb6e73033c754eda0299f23ca8a24ae77a5f8a859f479d83f0a9e87eae562. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZWFP2514435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0792f958b7b3fa34d9b7dac40eca126a536c0cf09316b6dc16662c50bb5e88. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/US83Z2549462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4257c485f6db6e2feb2c72f491838fa05ef97fecd629539c83eae4a252a467. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:02:03Z), 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/QT3F72539832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd554073825aef30bea49820a76be62e52bd481b07a530bf99ed29495cd30e67a. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/US83Z2551900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4537643f5b9fa08a0793b60b2867f31caef8b8d4370784b4006c7dc73fec9ab6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US83Z2552731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e209a727df9ca986b018693b9abc1924b6d7075a69cb2b6a6ad9ed19b257277. 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/ROGRA2500133.