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 0x76b39c75f693f0ed3da11a9cba25f978aef8e05818a060b7c04fb5e25e800ad1. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/458058cd-f02f-424e-b992-8f69e896a839.json and https://artists.proofprofile.net/proofs/artist/458058cd-f02f-424e-b992-8f69e896a839.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Now - Tube & Berger, Modul Kollektiv Remix
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 0x72d2844ee65de40355c56ad2d62cbda18db8aee704e1a71d46889b682d26c733. 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/DEW872204007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf27bf327589a274c17ecdc2d291f78118883f54a61dd42803393cf8df5ec53. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/DEW872303227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ac02a9a8b65127fd40cbcd6238ec0c34b0f87ce351b319a9acbd3fefdcc46e. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEW872303226.
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
We Are Katermukke: Modul Kollektiv & Gespona (DJ Mix)
Moby Dick - Iorie & Madmotormiquel Remix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf4f3f9ddd1991865826964e7ab5d1ad6d5ea2544e50abc7a21a24d5b7a5a93. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DESH42100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7511b31eca99bbe05847f17b3c49a49850eed66973e564d1fd2f1e8ec550dd43. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DESH42100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741a900d4e9d62ac35db8c8cc9b79ba5987a536bbde011a1bbf1ffe8329039be. 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/DESH42200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aacd007aaa7dd0a4f9116c60cf0d88e0ea7da1ba967da30fb83450fee06d2e1. 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/DECL81800432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a96d7bd3d03c80a161829992ed2a4fbf1ad91eb98777850fd27b33ab9dbb96. 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/DEPI82513454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f4344b826080c19001f8590feb2c947f238bf484593c118000155cfb70a4a7. 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/DEPI82513455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4226cb687e47161915d965f184cdd1668146182b135548225210c583fcc75df0. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITZN72500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5423c420c05a1087e00e67eb512396ec8f4e72fb3a0051054f5cb093d2b9359e. 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/ITZN72500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2447531cf13c8376aa9863838843ef03ce9944b5ed6df813f5a832387c923628. 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/DEW871607598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3618945f9cdfe9fc0c22e0d415dad23e480914b9514cfb4e4b6dc29673c01c26. 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/DEW871506913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f05a270802a27e1a9548b72a03b094fe573afe86d73afd8257f3b145b6e323. 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/DECL81700371.
Madre (feat. La Nena) - [Luciano Remix] [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e70148f26ff2b1507ae61e6d77c715382f31e6bf557d780ad9216d7fde8e349. 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/USNRS2141098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934a8fdcb63e0101d8cd30faa067620d53880fb3196d757c5a10b5bef2b89205. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DECL81500231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4be5db0ea6eb90c4ba74ca42c949ef5e534e8f4adf9787619441c804aef185. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USNRS2038954.
Berlin Summer 2019 (My Favourite Electronic Festival Hits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84000ed6000c66173dd2035cc73fb0fa74a5e35bfb82e68891a22b7d1a3a10ef. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLHR21600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f064cfe52ad784814f5f21b02b021124c7a617a2e402843c94ab2a9616b588. 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/DEW872004331.