Firebeatz is a Dutch DJ and music production duo consisting of Tim Benjamin Smulders (; born 14 August 1985) and Jurre van Doeselaar (; born 7 July 1987). The duo formed in Tilburg in 2008, and gained
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 0xbefac399c19904887663136ca81e6705a97330b2b4d6ee9ec7d2826adc2fa88b. 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/05c15cf6-93d2-48c0-9c4a-4ad0bec46028.json and https://artists.proofprofile.net/proofs/artist/05c15cf6-93d2-48c0-9c4a-4ad0bec46028.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 0x1a357496e459cf25e73b7f616b0dfe90da9de5d19144aa532bfa3283b7ae3985. 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/NLZ542200115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a09e6404998bd1889ea58d3e37929e5ec09f1f3e801565530f4eddd1677cd2c. 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/NLZ542301763.
Don't Call Me Baby (Club & Festival Mixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df4eebbc580a5808a309a5fa87a13d750adc48202a296bd25ddbef6674e925a. 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/BEIW12200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3896f1ce3f1c10be1cd163d02e7e2914c1c89f7be1cd4254236f7960c92f58a1. 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/BEIW12200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2767a26d7c61e9dcf1fd94c8591a81f410b863f4a9d7f5e1bd87a1995a9aeba2. 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/NLZ542200611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc070c53a7ff23b9c85f5ed3a41d250504e99e56e6f6972048929bc6b644c9f73. 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/QM6MZ2414377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1ead6024f00c7cffa73ac2734bb956a94cde1bc4341ac45145cc478c710d7a. 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/QZGLS2408554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd468363c7312806ebbc2c95c457c0588be1beb021918652e698460dac353b65d. 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/NLZ542400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe91fd4ac992a24e3321deb7aa050accb5b0f643d2c14ab78a3e77df733058b. 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/QZW9M2310720.
Shined On Me (Club Version) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46208e98912e264fdbfc7dfd09cbeefebeedcd00a6206364709fc79834a04d8. 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/NLZ542301422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b8d1a3715a6c4e56c5cfe49d6227bb73edecd30c98303ef2c80f78d6a63ddd. 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/NLZ542301296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6c463460415014615beee1e7462e3b215ae3d3cb3e12a25caed43d9ede30ba. 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/NLZ542301295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da79b264af9ce0ce7e3c61edb5d15e7951be776eaca2fe68618fe132c2b5913. 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/NLZ542300881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf320b12c003cccabcb7ead332d446e769b9ceb38bd812e58f19c000f695f4e4c. 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/NL4VT2100284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bcf0abd6e0fe99a3fcd4bb7338022820767ed96d29356ee8253c434142d8cd. 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/NL4VT2100285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084c9ecb330cf80ebf25f5aaf7fd592e95a9721fbaca21788db7856a40e17dd9. 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/NL4VT2100270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d23ac05af5dc8fd3aa4b630272c5bc13f75224460ea3a4d71b81ef8e248899. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NL4VT2100271.
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 0x2b72dedb6fb40b48d92e43bd22395df493ad55894825a1867e1ded20d3159250. 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/NLM5S2301936.
What Happens Here (Club Mix) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6eb8dcb79665aebbeb342875542306c8084ffb4ecffb294294660ddce58d9f1. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/NLZ542202193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965c11683c32df357c293466884ac7840263712f75083717872818b043513fd9. 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/NLM5S2201819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8ebc56b465343285d8a156afeaf9ba7ca8a9ee28886695bab9d007c20d9420. 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/NLZ542202066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01931a6036f27474173c54bc07bef781f4196e65983d04a38e2bdd124e3571f3. 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/NLZ542201225.
Where's Your Head At (Kill It With Fire Mix) [Extended Mix]
Where's Your Head At (Kill It With Fire Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3c86d5a39b2ab7a75850b358b9f8ebb3a1e4127b3630c6a7b17252b42f6ff1. 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/NLZ542201043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c174aa0a3a6d7f255af3ba705b22aad3fcd49b000325548691ea20958c0636. 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/NLZ542200558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449fbd51bba652bcd79edb1760529aabfe71cdede03e7f4da7544a1378d0334f. 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/NLZ542200447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5d451ad08c887cebe0126b096a6551f1aca27bf208ce75d38ce46b89a5002c. 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/NLZ542200446.
Everybody's Got To Learn Sometime (feat. Sushy) [Extended Mix]
Everybody's Got To Learn Sometime (feat. Sushy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957e6253cbc92dc7ebe083a0a95b26cf33ae87e54bb39c43a06cbf5243cb1e4b. 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/NLZ542200262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ebed2ce1df201592aae0ee8da72a62ece7e065e1ae2d832bbe5f57cd0225ae. 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/NLZ542200114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f4e61130ffb72c35a550237524f31f8d445cd6601f63c3370bdd235423276b. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/BEIW12100375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826c10e86ee7ffc7366c673948c28bea548aeb3b8e110fa107837371b8faedab. 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/GBLV62121538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575a7a722cfa42b83a780533eb2019a30cd8fa1d706703591df1bf6d19893442. 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/NLZ542101501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e8aef52ea271ced93fc0ba7e8e83f3042852c35669f9d6c9dfbf0df9765118. 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/NLZ542101436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a226cd72e048793a2455226c0554b083fd59b929c8e9418920afab375dd565. 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/NLZ542100733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3dd0e173f80bc3191ded83760efd77a5939f5f136cee4c27a30ff6b6a8d0c9. 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/GBARL1401202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61646851e9c503c224b0af824c386fa58a30453be718c8cb26247f8054fac90. 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/CYA111500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11753fbca77b738abe7c2740d61eaeea5087c7a85a60041511efd31f4619355. 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/CYA111400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874e00ca69c13fd5f872f08a6753da4aa8eab4e8a1f2c2a87b75fec284f9c307. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NL5HJ2300037.