Sam Baker, better known by his stage name Samiyam, is an American hip hop producer based in Los Angeles, California. Life and career Samiyam released the Return EP on Hyperdub in 2008. He also releas
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 0xb9e560cf767618e610d21fe3eebc5bac699125fec0859bce162f08ececaf3b37. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93c762b8-6801-487a-8abf-1c486a9230d2.json and https://artists.proofprofile.net/proofs/artist/93c762b8-6801-487a-8abf-1c486a9230d2.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 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 0x333b764426fc018b6a3d8e785dc3927e645138e9d3c2b895cd4463d871a919d8. 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/US2S72093002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca3a84e614ba6241781d2a6aa0279da5fc1da4d1d09e79e4108669ae0733690. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:00:23Z), 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/US2S72093003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49805199d1c871dbe1c554323ad11c13782fea2ca4432004dee35829372f86ff. 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/US2S72093005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18a292cb9f564164ecc08aa60db941c68e4ac53a08aaec58dcc55f763f5a12b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US2S72093006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9a4d786b835f5793ebb9d9ef4f33bbb9b46e3a641a9341037f5065589bfe57. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/US2S72093007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c60e3b306165d5a375eea1b2d445bdee450db7a85a8a5ef02411f3ae9896a0. 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/US2S72093013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac618fafbb727f2e7d881903d09ce3e5d4b3f8cfb1334021da185d8e64ec551. 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/US2S71792012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e19518902e0f586170450350f4306e45bc4caefdd914d50527aeae83e4709a. 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/US2S71666001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8de672fcf958c8846d70d485d18d3268c7bfeaf5858f3231a493b4a3cb7bbe. 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/US2S71666002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25303f274733c04f898736a7c0c6649037f4d25de42f6bfe09a94b083afb8cf4. 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/US2S71666003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ac450432bfce2d4972a987830b4911c7b533c9a93b00c3579eec17805ba1b1. 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/US2S71666004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe529149c3f74db098fdd2315755a1e39716f4ab975ada3aaf2652738810d81. 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/US2S71666005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969cbbe95ebad8dd6009203ca31e7a12f5446b1290e422d3440a8c8d6ddf57c1. 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/US2S71666007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286553514f135b50f3550f6166c394946d228864fabd7eea11eb0d8fc535b432. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/US2S71666008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1035d0209ae7d730c15470044fa52f32d11102f0cd8c77deb2d1d5942d9fd77. 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/US2S71666012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8534965dbdf8b212dae9ac4c24ece2386eacf69db48a17d4b84716d060997e54. 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/US2S71666013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd20739afa85c565ca96f86415f9f4eb56cb298d19acdfbb9d9c366bdcafbb2. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/US2S71666014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75758f3293b320ce3e214c97615635273400ebf84fa1427e70be77607da56b55. 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/US2S71666015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c199b260f6c0e210eb4540fc9ce7d23d6e16c8e6c6802fb0704db08224371d. 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/US2S71666016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf13b059ad39c57a44cef2553a1962199b7c458810c1e02eb631acc19a9b2e69. 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/US2S71666021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56288da387bcaba5f3b17b667b23819d6b6d4144c9f48a82e213dfffddec9a2. 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/QMHG41328002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae58e386bc98930614a6919c08b95007bd1dfb4d7fede2e926bcdc69e432520. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:24:33Z), 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/QMHG41328009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d821d512047b645b02c23f08cddc83829ee7a5cea62edf4a45134aad558f0a4. 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/QMHG41328010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c297bfa35457739fb602bfe40e7bdef51d0f731ded883760441387b5d242ed. 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/QMHG41328011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b7e6db7dc90744448c8c8cad977fda4252be1345b3cf98e6c5db91e232bcb3. 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/US25X1082123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6f321f83994fbd14b65684ab160998b847c26618df4e1792c5054dfb2d1b66. 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/US25X1082124.