Mark Maxwell, aka SILAS, is an American songwriter, record producer, and film composer based in Los Angeles. He is best known for his work with Afrojack, Lindsey Stirling, 3OH!3, the Millionaires (ban
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 0x0373eb4ba35fcaf694b36d660734cc70084aa854d7f993e2de9078ecb3cae42b. 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/16e2126f-6b4e-4ac8-8279-6524e127e2c1.json and https://artists.proofprofile.net/proofs/artist/16e2126f-6b4e-4ac8-8279-6524e127e2c1.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 0x93cc19713bb64938ecaf312d910870075192d101671825d6ee345c3da113d7a1. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USHM90659960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc26eab9b922122b0c4da6b7660e71af7bebb7972fbd802a1e78f10278595633. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAER2014972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058f08f42f39432e6e5962b28d505f06f554465dc9a36ee9c7a562f59f27aca1. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USTCE1040873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec4cf245aeb3bdc70850dc5ad961b98b6b53011a92ac0be6738c8dd79a788d8. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USTCE1040880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51868ab07cc8ded9948a7ff57bedaae899f29e56da615f20ddff778e1fd4d1c4. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USTCE1040881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bca4e5cbd32f16a8213310f2c6c157d7a8def8870f678a96ed5e701d8bc93de. 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/TCACG1565542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4fb934ce53b293787c3777841ff163b4f64c40bdcddef180881ae83cecd4d7. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/TCACG1565552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe988306a3e20fa989f22eff3023aa26b0cb852e650668d7ac3326561d1f96833. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCACG1565563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636ed6c8af5a2cd7450af14ea4834433b94e23394384c955dd446c61032e25e7. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/US5SR0910004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4dd01c564d18a65aeb739f96f4bfcaa48b6d0ea875e5ff4ac576cc3157e9a3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/US5SR0910008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bec299366f1d53a20be0980ca8661768875f35be89f1691d1f03c4af62327c7. 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/US5SR0910009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdafb877b79756ce97aa5d6c4a8f9f155fbff219981704e2ca9ef7b2779a04e1. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:08:19Z), 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/US5SR0910010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc934f3b01998f14804af060870d12a3e0103f3fa412b2434ac1917f26aaa9c4f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USY280737735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd275ac21977fe550a2ec42d8a7ee4b970723fa1752d515515fb89e2f2e15a1c3. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:45:23Z), 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/US5SR0300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9591db09a594cec8d6e0e98a91bafba8bb5cdee99fa77002888555cbb9c2bea7. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:43:02Z), 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/US5SR0300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268ce13e4fd6af0127295f31fe0d726883874ceda24a13c5034d2befd7d3ac47. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US5SR0300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f309b81b1598ffd34fa2df7af99d4027c76c0950c803a65f418f0efef61d02. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/US5SR0300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87612b078b08f38501b0f932a4c6c0e51a11c5bbf2593cc08be0415cbb25023. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/US5SR0300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b712ecf7b0baeeb4dcd818e779d596d0b4053e0a45929919850a9343def107. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USHM90623017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d12c71995b84630723daf84607fbed8009565e68274792d7e848c0420149ce9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USHM90623018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8246db02ece112f4feafa9c5e1eb1e1d3686d2276daea5d566b841e3f1fe041b. 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/USHM90623020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8fd08c5f7add84145d3260bdb5641dfcae1307f8d0e66e408bc8ad25946a7e1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USCGJ0944052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d76cd919086c4689d8f1da2d641273ff12f0fbfe5f9c71916442c359d16a5ee. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/TCACF1506831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873477a3cc3c030e020197a74fa08ba410bf48125d771b75832c3697b1248ce1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACF1506832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834f8a10135bf0b9fa6f7e782cfbd1bfda5626acb1045ba07f94ab8496591584. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/TCACF1506836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd80068c8cf070a9474e99daa1d07d0db83b64be3a79bf6e2c716de299044b29. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/TCACF1506840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311d1a6e62323d015b760f8b3e07ca689f4748c0a2ab256edc7e9106c517b9ca. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCACK1504491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e69245611e59b2be25e7f1b3bed4e5352a26745a1a1ede048251a8090153be4. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCACK1504495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29be8746cee88e996b2f0ff2623271bdfc3010070c6cc4b0a9b6eaed4e69f96. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCACK1504499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b89a56190e0df50a7c25e900a2af613107da8cbea8c22487b79515cf2d04171. 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/TCACK1504501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549162e39030c0ca87de8ac0a7a008f7c2b563bf8215210ba4060a9e968bfbfa. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/TCACK1504504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac54e4478392db216421980659985aa16f6de09971330335794ffb1f1beca1cf. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCACK1504505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc954c3946c42ce5162ee3096f9540a484c051cba5a5f12ef121c46382a7d2c0. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:13:32Z), 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/TCAEH1978467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc2f8a7ca680730ce95859eff79fc042d6de6725b948b35c0065a8c7ddbf24f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAEH1978449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cba907f75bc3636f7c9f884369b843caed7f3714389b9b7f1425591cf2bf5ce. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/TCAEH1978419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3dfdd1f62f1b48556a5a285b73a24ed9ef1a9f488d208d73ebd00826a77a63. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCAES2039805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b30ab737b238afbb94d58d5443b9b2e6a6bd874f63f8ca27c586f86c6ae709d. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCAFB2019865.