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 0xffd7428cd204a66248986be700247f237b18f8f59c7a699f1cd128a444066464. 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/69993f69-08fa-447c-8582-697b09e6f794.json and https://artists.proofprofile.net/proofs/artist/69993f69-08fa-447c-8582-697b09e6f794.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 0xd8b5fd907e37c50ae581e078867f8e04e41b71443c597261b0cb489ed87da09e. 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/UKLVE2201242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79d067cb0e02959b5f0b021f72deab2c133faf71ad9a946f73d388dfb4c2348. 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/UKLVE2201243.
El Diablo - The Remixes (Incl. Manuel De La Mare & Walid Martinez remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4273a0244373ff22f5f834765a72a3dd4e05e3c9f05751bd34d4cbb352bcca87. 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/GBKQU2385738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20355139ce0a89a02798b0ba126706aa173e13f14ccc2a86241fc2a5d3de8f7. 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/GBKQU2336199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db242c4778fdd50275538742768b8d74fe134c4b4abd06926386b3d80b44856. 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/NLMT41801161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a502f9d8c332a8a92bcdc3c6c84baf773c76039cf8be0d4ffa41d9a3e63d6c. 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/NLMT41801162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da1ce06b8bf41b39fde4a554dcbc9f146a3e7de51f83a33fccea7eaa82d6191. 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/QM6MZ1899497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439dcfc436bdc3ec480770b52d26f5ae3de671a585d5c0b5289a4bbcf34526bf. 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/GBKQU2408517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c84f85ffd1abf0480d0d717041306983fef366494a9c9cd36f98ea3a5e30d32. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBKQU2407059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1216d3c45e2d5da84b96874f30b2bac9ffccb4bf59be91e6e66c407756655583. 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/ITREI2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60da70540e0755de0c1bc8729b541fd667d340a12d24b6f8e2c40130c6f61aa5. 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/USD8A2429803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dbf2c0a7c0bf523ef2cddbc778a34c1215c6adffeaeec34f09bf16bde4617d. 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/USD8A2429801.
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 0x32f5c9a886796f2c0c4724aa7111080d08f35d8f60b599f4c132ed0c6ef773c9. 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/DEW872403214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c692377eb6352af9af7284daa36d6f8a59bdbd0d66d949fdb642ce2ee97c4a4. 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/DEW872403213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e143d558fb39dbcfbf3cb5155815547f3406e87a2dcd0b8ef6849b86dead31f. 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/USAH92400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f57c83968d347e0e02d4d660e6a4c28dbf9e5db0b23b50adc47492ddeae6be. 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/GBKQU2406456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3abbbd6642a96a53c7d29be44970a5ce9e921fdd93634ede3e0f1e192db9fc. 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/GBLV62321755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b54fdf6b49ee5da49fe5cb02bc33589c26531cbcb2ed06c7c573847266a478. 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/ITYEB2300599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021a8222df96287998e98ea9af303e1ec81b127c3db8f683e7dc52d550de36ac. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ITYEB2300600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62794983c86d35fe42d19955a24b3d011572466889fddb722d4a8afc4b579014. 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/GBKQU2389993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd0bd847cacfc9990dbf0d61293dcf9749b35f4059e8d594c4d6895e9ad804c. 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/US83Z2311026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d897b2a82b0e1ea1a05543ff93b823164f964ada8c4e3bd5e6e3b2233523e7. 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/GBLV62202854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28d3df58faa33994ac6c71b25c97488eae25c5158fb64af71858e202964fdee. 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/USD8A1819001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3bc8457461ccf50c95ed190f6a661232aa27af3c79117a029c5fa68914371e. 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/DEW872302273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4da60c72e70dd87365132c8862a598372b750c99858844be9751c93013db60d. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEW872302275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130f6a6f6f7feb1e66af412aa7f4d67f02c59e2723ea13c334778569cf5ad020. 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/GBLV61919292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fcf404d0351f7bdfb04a59742acf0ce67f0856ed11055d4f7cdd31d6001aa9. 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/GBLV61919293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc227e41189d109439d6346da5b7a82802b3732af028db4da7d43e04aad413556. 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/DEW872402131.