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 0x16c6fc585ea1691c04eadc31dff31c1922e7cf50058a5c202a56b10ca07971dd. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33af824b-9436-496d-a507-1b29371eb82b.json and https://artists.proofprofile.net/proofs/artist/33af824b-9436-496d-a507-1b29371eb82b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Handzup Will Never Die - Bassdropz Radio Edit
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 0xec23cda4d4b30f640de6f65c91dd2eb33cdff0e5e33dd2b9e4a6d1c041cadc2a. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DEDM61300381.
Nigel Hard 2020 Mixes (Remix Contest Winners)
Handzup! Will Never Die (Competition Winners Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172c662731da0f22a21fcad28b3b6ea8d9c6f2cc0bd1852a544bf767cd27680a. 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/DEDM61400589.
Bookie Wookie (Celebrate the World Cup Mix)
Rgmusic Records 10 Years Anniversary Party - Hands Up Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cb698d428760c956b91fc85ff82949e8d5a8a42e87de6b158c42d8d66ad7a1. 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/DELP71000430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e82c37417ec7dbc687a1b825736af4327a4fb49845a7d8baf7069a97d7ec96. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/DELP71100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa5313c4880be278485b23aeb1ad5d562f7b705eff68e073128c568ce8655dd. 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/DEB551422182.
Running Machine Man - The US Fitness Power Traxx
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c77cf1a30d93d2a9eec53b3e0924f7212a132a6ecb021916a877e3fc31ba99. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/DEZ621300114.
Handsup Party Power Pack! - 50 Top DJ Tunes!
If I Were You - Brisby & Jingles Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5678d680fd9c640740398d94801331b96460738b9dcb003b53611b00974c99e6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEZ621300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4f4e6dbe84eecabb93229fd67996cfe4e425e2ba4eeab8da3806b49a17e60e. 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/DEZ621300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01dcd9869671c1e401bb749de4129df32e9aae76d79f7d5f1683f93b8d090c6. 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/DEZ620400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2454921478a7547497214f04e2c1a733857a3dee16378f873df1057c65a16686. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEZ620400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d9ce4e470644a57a1eccd1ffa591087a46d367b37e5eae3e622d302fa4ad97. 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/DEZ620400053.
Still Lonely (Edition One) - Phillerz vs. Blue Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf43613d6ae7339f40d418ce57d4bfae46265d6d2e95276ce4f6e13a4147347c. 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/DEAR41642781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416deb55d3eadbef1e731bdceb1405948a7be98c79526101b7cf00b973cc1fa6. 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/DEAR40811996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199d5cbbc58a87f81700a8608ffb8a8f2bd5637dad180879d29d30872ba83ec1. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEDM61400494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8916a5580b5e504349ae4b984c08c254e049a1e019e46bfa2cc204bf7127b54. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DELP71100302.
I love the 90's (Remix Edition) (DJ Gio vs D@ny85DJ Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a501ded026a8c117028a865632fe4daac8bf189db2d3239df5a3ddd47b3adcd. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ATB960900105.
Remembering the 90s - Classic Radio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866f9c7c8dee858a5470f2a2269a57b44c8ad54507fe5f2d3d94b2ce2b43dfb0. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/DEB551421971.