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 0xd911b8bebd5eb91727d8e354978d6ddea43a8359700cbf1b43541c6692761039. 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/aef61631-698c-4a62-8e5c-0527f57d7d8f.json and https://artists.proofprofile.net/proofs/artist/aef61631-698c-4a62-8e5c-0527f57d7d8f.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 0xa6f689f129ed5049e9af5512af2b012ad282d2c0b19524047f27c93b2decc892. 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/US4J60500078.
Forget The World - Ismael Rivas Factomania Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec44eccc481eb444b8e175f281f692da9dff5ca79bd8424c186a74d8f3df9eab. 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/GBHFW1000059.
Hide U - John Creamer & Stephane K Remix Edit|2021 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb65ce409bbaf071eea2496045dce3606dac48f41c9190421b91eb3b519a6f33. 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/GBAZG2110420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267e679d7c4ace205d18eceebaab446edf80d038446f60d929f8269c028e83a2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CAPA31100556.
I Wish You Were Here - Martijn ten Velden Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc471ab9d296ca825a68f372d2176868a8b0d742c5f46a168cc898e8f7d8387e. 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/CARE92001335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fed0fcb502ba7f7eb71cb6e5f16b288157189cf6df59664f65d967d038f6d9. 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/CARE92001336.
I Wish You Were Here - Stan Kolev Remix - BiG AL's Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1ed65eb539cc680061b327e539ba07f76bb9c209eada021dbaae323228d45b. 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/CARE92001337.
I Wish You Were Here (feat. Nkemdi) - [Omid 16B Revisit Remix] [Mixed]
Global Underground: Nubreed 12 - Denney (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b42bf93af5862e740367b06ed9db64f0fb36f970419cc6dd2b590cc8deb9c2. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBHFW1800173.
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 0xe1b198e4836487b077ffb8abd047ad9f64a3f717643b384f7400226807c29720. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CARE92001338.
I Wish You Were Here - Fabien Kamb Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b924f79f8484d6e2446faceabb299970e8ee24f15861810eb87f4741ddde404. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/CARE92001339.
I Wish You Were Here - Music P & Marque Aurel Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b66cb0db1ac00039c05f037bfadba4b9879c695ad69a65bbbbac6a5e5a9015. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/CARE92001340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59bfe4fd0a946b9e5d4890b78daabca1bbe803605b5784f3853b8919dd713cb. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/CARE92001341.