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 0x47648c3e103572b4ce8ac931e97da68a23770a6204c390a7218d209805a2e874. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a577fee4-df3c-49c0-b4d0-136afe6dc189.json and https://artists.proofprofile.net/proofs/artist/a577fee4-df3c-49c0-b4d0-136afe6dc189.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 0xe1cd9aff0de3b6a92d67bbe5dd371ec42ddfdc985a6ee6a30eee8387672b6143. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBLV61921926.
Defected Radio Episode 154 (hosted by Sam Divine)
Feels Good (Yeah!) - Kelly G. Little Louie Party Mix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb66d608fb8f5c31b3ae4ba1b323a17f2e3e0ba8d9c5b4f623e6e8f036ae85c. 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/GBCPZ1915740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fda521d9b06ea830217da4aba42f813e85e8b6eef29aaf4e5e02f1583b440a. 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/GBCPZ1915741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a9a51c6743ba853b3e87d410942c6c1d7fcf330baac40f3bffa4ab8fc222c4. 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/GBCPZ1915630.
Swimming Places - Purple Disco Machine Re-Work
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a6b51c9d8151de3cb7a5de220be0212e759e6c9ff2ab084f9d2dcd85ae33d6. 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/GBCPZ1915274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47593189971bf5c612a2352e1e1cc866cb9028173f8f3ec70409d5a50d250fe7. 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/GBKQU1932728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f11dd96402f1769ce94841d507abce89707b0f234dbd220350c7eba02ed5bd. 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/UK74K1400793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818d66b4f1333058afebc44c7c450d09ec9693a1755618f62e7b082dc4090674. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/UK74K1400791.
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 0x859a72b5cd117c20f87c5512c5bf53e39d01f15ee3063c58749b42b8a9ecfef1. 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/UK74K1400792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2f9abd102cce7120b511820059a4f114e98500650030eca9ba674bcdfaeb93. 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/GBLV62310903.
Let Yourself Go (Nautica's Make It Count Remix)
Let Yourself Go - Nautica's Make It Count Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd3e03db3f65483397b6e3a6dea3eebcae78b80911585fdd017c42065af6a01. 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/GBKQU2390189.
Let Yourself Go - Nautica's Make It Count Radio Edit Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f4e52fa7dab2158ee10edef31cb3bace194385e61cdedd6bd3771c3c0c5240. 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/GBKQU2390190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1606f5cc50bf15d091ede2b450d54a9ae148dfdd1ffbc7a00e4842391c035822. 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/GBKQU2384741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc591f342804a7814ff631e339b4b9c074db810c24b3c434a256c5a17cbe80d35. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBKQU2384739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bf9c5069ba42d4cc2f252da58a1144fe75ba2d86b8afe9e9c086fe9151b960. 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/GBKQU2254296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47baebbb17e421a1726ec9ca2363a2e9f823b4db2ce67b48a83e50fe15b69cd0. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBKQU2254294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b9b03da0d8e741e35582b327130e382713359d24bb3979ceb3d1b513ec83b5. 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/GBKQU2254295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd259325bde73a0d8a898900373a4e8d1378adf3e6892189c83f934b58de90a2. 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/ITBHZ1500796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0794cf13bcfd9fdd2cb5a2278a2c501268a50805e6506952ba940f67ea1f84fe. 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/ITBHZ1500797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5d197c603fe81dbe2c7f138ed877d3d820e4cf75f7ad81ff448c86eccf9895. 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/ITA061302156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3127114acdb2f81abb0fca571e3620375fad90c90a3f725fea90d4a3a572f74. 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/ITA061302158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5484d153130160543e02ba3a01a2cfeaa2b134f1be42d3576d560c2b10769287. 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/ITA061302160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c27275288dd9575c4e6f30f86478c1cac1ab824d40c3a263c668d1df64db1a. 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/GBPQS2100216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed121dc37649b88255244fa87287d2df066e2579a45be97556b9c665b751a18a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBPQS2100215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575fbb8589d18e675fe21a0153e127a063dadd8265b189ea4642ed545f7e1bd0. 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/CA5KR0027703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc444402b48a26b5e58aea961e495ed1217ebe2a39e63001c762248902f664e2e. 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/CA5KR0027704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522d4ecf3993a5f559d75ebc42c6925e7f9343c8bc189ad3d1871868ee21c6c0. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/CA5KR0027705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2631ade3762337e90646ae4762ac3bf21ec8f31323baa662001acf651204bc16. 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/DEY472176514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9d814d47ea4785f8b3a3ff94228f2acfaa1a6218fca3576a0936dd835adffe. 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/DEY472176515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f54413850107321fccaf68527419ab675d96a4f57312f103790e5e827c4175. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBKQU1927788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff7dbbab58b9d877d820cf8e9a44ff1fdefd667714640c0fd5a480d23bf22dc. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBKQU1927789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4328444abe9929a35d3866aa69e005c92c7622c43b6d3281f0b80b7e9b00500. 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/ITA061302327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98204d7e6e6d2d03b49df3f652895d3b3e5215e4c4c6c9a554965b48399d938c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITA061302329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9906ff45cf597aca0e5004064af96cbe531e214897a12d4ea43d0d3d0036f6e0. 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/ITA061302331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a12daa7916654f317cc2a000aaac9890429ca527807c88cdfcdfff5cd689e30. 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/ES94G1916708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7fc26ca197f781846e3a77545ff623bcbd5603d8c499ef16a49d4fd30332c31. 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/ES94G1916702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f48a80dad5b4726dc5367fc030df0f76ad50e23ea8a9c991a3afb345129e20. 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/ES94G1916705.
Defected Radio Episode 145 (hosted by Sam Divine)
Artslaves present 10 Years Of Moan Part 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f78219ebb76a76f6b13a48392f0f9313bc74945998f331110900e7168b1478c. 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/ITBHZ1500815.