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 0xc3ff6c856a2d45647da2688d00950595ddf92bd29be61b2bac3601576402ec02. 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/636918b5-9690-44f8-b9af-d87c967232bf.json and https://artists.proofprofile.net/proofs/artist/636918b5-9690-44f8-b9af-d87c967232bf.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 0x8589e18a14829edc8da536692f7869826defd2ab6407fc3947b68e50d8e7b098. 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/DEXN82422224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17252ad5b4ea6afd5a6b0a9139a6f872adf52c074b4a9fab467d6fd653550931. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEXN82422225.
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
Dreams Have No Titles (Menachem 26 Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6af94ed567ae2631741e69c1d70169e43b6b04f6c0b428ae02fd77b7008ecc. 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/US83Z2331756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8ec7748ba10193e10a97ce7f1cca5e71ba41aad013457c6205965fbd052761. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DEXO32235923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d44d8dd60d3d7ab3d2b3f0540e000a62b991e645c6bfa9e26867564720a76b. 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/DEXO32235924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8670caa86d2d46134bb7af04624f9e6244fd0d1eb78e87f48beef6b448280b1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEU672201205.
Kumkapi Blues (Anatolian Sessions Remix)
Kumkapi Blues - Anatolian Sessions Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe2c99081ded5f0ec1d2139b20f9305f8ac0a5ffa87c560a4c69f483ae5921b. 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/DEU672201204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2e788175a7e26049fd5a5c81915c70f6d145c8c09ca93a46aff01898fa0712. 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/DEU672201202.
Kumkapi Blues - Menachem 26's Alternative Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b2bfce65df3ade4c46ace872a89772aaaa3f614523d6c6acf359d43cb3ede0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEU672201206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15e289889aeb84dfb0a41b44316e1e22aade07f0f20d196f5adbef7ba26948f. 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/GBKQU2253199.
Istanbul 2022 (Daniele Di Martino Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2216c865f1b4906c8680c317f0fd48cf36237dcc8e7d8b5bb82c3d9434f530. 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/US83Z2210055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72acaca2ccf12b7648cc96bcb395059ca67d760c6b5a775c0d84012ef5b03a83. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:00:39Z), 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/US83Z2210054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe43c71fafdabe5879ce6a8e74153e1a9f5ce3e9f10aeabb56ccf2138d5694f6. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEY472172598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd598d92ec4db1874ed100106e6203b696eeef0cd8230682a1810ee2545f5d944. 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/DEH742040255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c90be2eedee06b20231a046b1ada2f6aec2290a858e578a2dce78339bedcc02. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEH742040258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19eb3e6bab376815924ed0047a037b55afebc6d8cd827381ef1fd5fcfecd876a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEH742040257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74552c2ddb200ec5e0e65eec7532cb9be8ebed9d6d54869043e77ce436518e80. 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/US83Z2020120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e535bddfb9a8d27b0d375487e963c52d987155765f0c690bf3dae45418194d. 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/DEY472080494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac6744343c944222171ba2b47611b226974d21e920a98b6923d2e8a7c19a805. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEY472080496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a97fc54cf2b599019935d6ae6e2aeb766a15cc38105e9550757518251ebb72a. 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/DEY471821555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306b2e862cd78f89b7c4f212a7f9c6e47da832a51daafc83b28a9c0405d91a93. 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/DEY471821557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5be82cf5f68baa70a8d5d2d9c6781e6867923ada936f4d5683bc6b50ed0e4e6. 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/DEY471817487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb568c4be194d07b611f2ca6990ef8d12f727537d0977fcd4ad440cbb9b7843. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:56:32Z), 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/DEY471817488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238cbacda0e2ccf80ae1faa2e92a41f1a8ed26a6abe2bd5dc8d162127ca3cc9d. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/DEY471817489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2513848839c331cf18167401ccdc2820165a97e80c2b80e2d9f78d01a2875ce8. 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/DEY471981929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a5743db4c78ca296828f8f593f00513bd18e43b7ddfac80e19ea187e945b1f. 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/DEU671902433.