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 0x54651026b8cd13bc95a135f477ec57f8f1da5c4486e8e5186172652dfbfe356a. 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/d4a7d3ff-c9d8-4074-90c6-9ab9a0778164.json and https://artists.proofprofile.net/proofs/artist/d4a7d3ff-c9d8-4074-90c6-9ab9a0778164.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 0x15a9c22bd5a108e713937d1f2e396b070df49539002f0b79bae6bab668eb8ca6. 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/DEU670700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2c47ed9c88f2a051555db9295406fe08fed927673519ab12aea9fd1e6beb67. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/DEU670600074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2415778fd12d120297d1d322c3716368f2dd7f6f3126033f583660c33605bc. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/DEU670700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1cfee93e3e6d6bcefbf499b3d5db479d909d85e325881905f4f9cdcbc34554. 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/DEU670900717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafade60daa4481f39ecc166ceaa4c59950c5c1cf8c864ca6d3086e7502426e3. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/DEU670900719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0acd3644643a911f03d32b8a0c51e07040c0350e750a20c2867c8993ea51ed. 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/DEU670900720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc995a8fa3408a836340a236abfe887e2d3d91a9a5dd29ffd8eacf6e952e7f4b5. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/DEU670900721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e1491d8ba9a72cbfd4572bbb2a7e31d67e13534c653a4a88f6becff6be3c7b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEU670900722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc1a049e37e06870bd2123326dc77fe3f4d46a46454acd4db593091a6b7b2ab. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/DEU671100157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac038df1e90b64adb2c7cc230df188a7a62129c682194ed5513fbd4f429333ab. 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/DEU671100158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cc2eb55cefcbade2158c1b27e05374399d1f3be2b9057a26710b6c50a741bf. 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/DEU671100159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b2462d56861864df875384a0db5a14117517512e0d67b9c52fa0bf0d616f4c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEU671100160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48622cddf6835a8fcc9b010e1f4ba1ff73aadfa90648f4ae787247fab1d3af36. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:50:50Z), 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/DEU671100161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f903e3f542027129c3ce9e76ef1f919cbf26227a066341dad5d5d9d50db8a41. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:53:50Z), 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/DEU671300199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334c922cd2c300f28ca2fa8725ba746558ee6f6ecd074278de2c7976247d05f2. 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/DEU671300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a5af8baa9218556c310ec5a55bb94d8fe69973cc3407a9b3bbf74428b77a30. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:08:09Z), 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/DEU671300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f78f07faafcef2039a2411baeea43de3bbf9f477bbaa65c95c1fe4fa2551728. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/DEU671300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5694b73cd93e473ba9903a5624b93dd9fdf6aaec2a1ddb6dca09ac3be55f8310. 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/DEU671600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59fbe8f6a1c18f959933392da3b080c3fb0ed8d3cb9ef1ebfcb4ca1ff295784. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEU671600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6858e3821d339a8ca8415de64ee1c2c7eca962658e90caeed4d1b22fe472b593. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:28:56Z), 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/DEU671600027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01cef89716016d0ade173f8abef9883f3f3aa93ff825368f3c2d7fc96bd6550. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/DEU671600028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af47fbcd632b97b683d79ad39e37b32f7d66131698d32c8489ae4ecd555180c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEU671800120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51392a6c571b0f75aed5849613e39fb2c3c55e2ba314f35d048c15e54f299f2d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEU671800121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126ef718b20b430bab8265eaf3a6572503ed6820dcd8d3d110e3c09f4e592b58. 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/DEU671800122.
Something Left, Something Right, Something Wrong
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6894cf196ac2c5f80aad6b7bda54e94cbe0c6b5b7eaca4b896cc0126b67369f. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/DEU671800123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b1227a36855002f4dbc7e61cbdece99f3e3e87725b4230fbde86401051db7a. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/DEU671800124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961b4681ae5655c255c1b15e30867fe54e183a03b787bd1902c18f6413366a7a. 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/DEU671800125.
Cymbal Rush - The Field Late Night Essen Und Trinken Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ede1aa27f75843233f2f41fa60f0d8ee17cff3d10142d91df5c0fce4f896710. 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/GBBKS0700620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f6cf2a47576767e5fe3d79a735825d76a77118b18565c3fb55c8ff80d44386. 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/GBBPW1100271.
Tribute: The Finest Cover Songs by Kid Loco, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb554c812051eb31315381c816e8e8c81c3c76483192a8bb60822a76b018efde8. 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/DEU670900718.
Looping State Of Mind - (Junior Boys Mix) [Mixed]
Global Underground: Afterhours 8 (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f58e9c5b8aa325ff065479b7c92830b7863304d5fc94864af90b4294e3f16cb. 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/GBHFW1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9422c8b529af88f2455c17cf5fcf9c570610e982f2c9dcc59fa5d700236a2bf5. 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/DEU670600136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48dc26df0e7efc61b5e179130c5e93362638c5f78515c911d4e17b787bb61350. 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/DEU670900007.
Reflecting Lights - Kaytlin Aurelia Smith Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f0db7b511949ac145fd4205aa7717b2f7c6b4e6e090cb8c66448b09a0d9b9f. 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/DEU671600188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd23eecd75c649077bb9dd149c6de13de5c98ee095384a0af2941af9d463c74. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DEU671400028.
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
Harmonia & Eno '76 - Tracks and Traces Remixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea12e90085f3a9e4ad599ef756ff5b314ac2ca20c6033ee593b033d86f22be4d. 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/GBLAZ1500706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0a612cde66ff9f7bd2c0362bca5a0cd321f795e68e05e4784f5203fd92f97f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEW280800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7e5181a3cd7f7ca37813fb61ad2d5d86eada865b65ec3f27353dc93a307c94. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USSM11204359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40705d28af44ce47a2300e16157c283403d1d0297620db3c361511ea2a64e391. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/DEU672200574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160e805354961d03f9ed3ebc3dd0f275a142dc8931903ce3cd6b4726e3697584. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEU671000151.