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 0xe4bd24bbc84681e6a499c12e5773ba021296209df98560554cda2eeab632cd8d. 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/5d3f0d3b-bc78-4795-8286-0af755ff68ca.json and https://artists.proofprofile.net/proofs/artist/5d3f0d3b-bc78-4795-8286-0af755ff68ca.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 0xb7b40e18b6b188a46aeea80f39c53fa7b0f3af4c31534aae7da920097e7cfbfb. 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/DEH741814879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61dff33995cc382e1ad2a0812d3e935ccf0297e732d4a541c73833956f4d07d. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/ITMQU1900065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3843169a1aacb4f4de421e0bd55a9c715bc542fd55bb375d0ea8f6e34e791b30. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:13:30Z), 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/GBCPZ1916308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639053659ef6142d3d5ac4fc57e920fcd23ae7cfa3295d8bd9e1f2c773933bb2. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/GBCPZ2018124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7515137fbf39ccc67dc4dcabd284a68f731a1f04a7f5e05b3d42e3843a2b829c. 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/GBCPZ2017251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ccb782bae39619839cb43278893a68eef60a74c0d96530b2f6402902045eb8. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:46:19Z), 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/GBCPZ1916566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845e8e356399bcb5d94fc9ba20d501eb038860ba6079a6311a104e1d778e08d1. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:32:09Z), 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/GBCPZ2018125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273db5b18ce02ab9124f8c9adf705cc53e99b4dd7584c790e0beee1cb79d608a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:18:48Z), 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/GBCPZ1916855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eaf977196862af7302f54d16b468a12ff163805c47b392f2aba745c48f7fa4d. 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/GBCPZ1916637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc198529089f4d8aeeb19ac8edc5a0d4dc0c350838dccad147f988c3974d764f6. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBCPZ1916639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eaf977196862af7302f54d16b468a12ff163805c47b392f2aba745c48f7fa4d. 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/GBCPZ1916637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1428c7bde1a7d1a0800de2ecc357d27458b9bccabb70b80730477c4cd4566ac. Chain 2 (Bitcoin): anchored in block 958573 (2026-07-18T15:49:54Z), 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/QZNWU2080390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078782df1ee617f39eb3320942810000f5440f6191a54737920213fb0b1b3860. 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/GBKQU2316051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ecbf3fc958fbd83358f92170b714d1daacdab5eb5cb22438db0918d1dc7d45. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBKQU2468634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7ccbab6b66486f100de830e661292f5180a86c3a60e2ce3019689bbc448cb7. 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/GBKQU2587040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76baebafaf7abf3a0cb4f94f814f36027b2df4963820e1578a89c9648af75ad6. 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/GBKQU2598449.
Joys - Purple Disco Machine Extended Remix
Gok Wan Presents Isolation Nation, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b5b6645d79c039a0dc6b16c32c81360f6c018812bee4ce60487b19acf97fb2. 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/GBCPZ1916565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10c8eeed6d7182e2353bd11e3693347be71a7c35d4e37ca4e7ab8df893630d8. 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/GBCPZ2017248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfebddb84f97d4b766bb31e06650949688ed14c9e2caa893128851112fb46d7. 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/DEUM71906801.
Defected Presents Most Rated Ibiza 2019 (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b3139fd6d62a8e683345a4ca4a620a016544ba99995e4dd9ca9299a9581c69. 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/GBCPZ1916464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b5b6645d79c039a0dc6b16c32c81360f6c018812bee4ce60487b19acf97fb2. 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/GBCPZ1916565.