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 0x968bfa5380f6ee3e707ae3a5f84ebeb41b30b5418e8fc050a17628a9eb13dd90. 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/8b861456-d3a3-4e02-8b18-297cb7cf2f06.json and https://artists.proofprofile.net/proofs/artist/8b861456-d3a3-4e02-8b18-297cb7cf2f06.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 0x59eac7d71276dbef1f6bb91b56bed516ebe00e1fabefa4cd309ea2dd93c4906b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:48:46Z), 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/QZ5FN1833300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9811ed269757355766930e3a22a9ea6c21750c0b3ff804476903aa0446820e0. 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/USLZJ1886832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac7df3024fb8d54f86ecd425e52ebcec56e53364da45a22d15929dcd4184d8a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DERN41900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3b6ba48bcc6ef1a7b91ef6a37baafdc3ff155ff19020b344e0d01b3f788fff. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/DERN41700173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4973384f007af6d9bd627ee888c0727a273e44cded64d573c01c7c92138d1d. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:04:09Z), 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/DERN41700172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b31ce45f72948378ed4902bdf02a06d533515b5c1b47a237f86150c94625c4. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:52:35Z), 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/FR10S2005786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1074cc865123e06334b96792db883916b2f7d280a3b4c51baf654eb8043002. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GBWUL2049504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb741b0330b75d17ab1bbc4589b1e746f318f4099301020aa4be4db38c03079a9. 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/GBWUL2093497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf06363e82a8f3919eb9bb1a6545c093ad2e8b7148d776b530e565f8363b9f08. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/IT2VK2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67fc8a59e950b99baf5b750bb8ed8a47f9c39c0e098650aa5b259b498082b64. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/IT2VK2100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ba2e42b5b5f8de3d48c1cd1736fe6335884ebe013bffe51089a2bac0f16895. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/IT2VK2100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfe6f43b39107aa25ffb8453a717a86b7f9eff906b44de8c2a0643e86dfbc07. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/US83Z2146179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f8709ea6c778898e087c422f6ac36a0e88ec929888240313f9ecade49267f9. 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/IT2VK2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b8b471bb5d1e336578b8232877291b097b0a7c60e400bd402bc8ac9e83dd80. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/US83Z2221428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c49a408ecabe6a3a6967ebb2d9abd95617edb228847f7aadc32e712731e3062. 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/US83Z2237580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661dbb666c70d94f38491dc76320ed5ed512a0519a59880ccf704ab09c30389a. 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/US83Z2241510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9c7f612b5f9b55e7beae2a276e6f40de84c5b2c1fdf4b51960680cb5b00b6c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US83Z2303929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc38c32df82f85f6d0cca5d27a66025c3ced8c4380ffd08ff3e997d78776d14. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US83Z2312516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e85aa766adfa3e8463e1c27b6f98446a867e29de4ece0d4412e47db4ab926c4. 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/US83Z2307973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3a509d8db775f31f32adc75f3a4d280d2973b9413d514397a7b944c904ea8b. 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/IT2VK2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84da18d139df49afc2ddeead3824c65ce72dd8cd2908ff5c922b3e42c66adfac. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:01:26Z), 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/UKACT2400227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e4e75dbf76945dd875ac9fd37f086df768d9515d03d9ac5d70467e5bfe34f6. 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/US83Z2334807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480ce7701556a3f2793c2ac6e3bfda5cf25ae3dc79155fbc68fb20e75e61f08e. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:52:38Z), 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/US83Z2474458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e4f5ed313ae1ca99808cda9c95f3749a4018dc077e01fab849440e68af0c04. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/UKACT2400990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd9e7c04d2b175f3645baba3dc53e6bafc3133c00529bc1e182b0d4bed1b841. 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/US83Z2482318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e451167dfb85fc5b66a003afd8f13776e50e8539f75b080981d1e83637ce6ba. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/UKACT2401032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f403d523e3cf65c9ed5dd367bd69921b40b1242c9e170c738fedf7b1c0b3bf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US83Z2484654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4142f468ef44b4e7d3eb8ee1a6f0201d9b2d5dacc84f9b44e175ede9ff638756. 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/US83Z2494898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84346b36ca2b90f873c6f3423520014bf39cc151ab42ebc64cd6c864d4e39c2. 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/UKACT2401104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfff5f9048c593b996d8b5a91ce746a672227158fa5d2643de64c4eb4349d4bc. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:32:14Z), 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/IT2VK2500073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1320960de04aed28e1d78c04b3549ac354a6410490136dcaf479c7775f13c93d. 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/GBKQU1979624.
Top 50 House Music Compilation: Gold Edition, Vol. 5 (Best House, Deep House, Chill Out, Electronica, Hits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c1191e36fa64e431c94eca0c92134679e410d1d2b60354bcbbcd0ad77b7cd5. 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/FR2X41604973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecbfd7fd7107ec96dbd0b426be26178fbd41e3db920c2c0f67f9140435a9bfb. 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/FR59R1641883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42314168487f9463221211e2d4f0713c456ab7def49975530716cd482043d2a9. 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/IT2VK2200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2552922aed1da958fecb43b995f57aeca3e258d8568d20b98d6d39ca217112c6. 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/IT2VK2100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfe707d940efbe8edfafcca93a06645be70ef925e204b75aa7d238f009cbad1. 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/IT2VK2200022.