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 0xf22597aa51d14ff1b0c24cab0b7eaafe1b2641e3db949e98a4fd8c7de8ad57db. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1b3483c-c7ca-4750-8f68-39e08c19ac15.json and https://artists.proofprofile.net/proofs/artist/f1b3483c-c7ca-4750-8f68-39e08c19ac15.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 0xf573211744f512ae0a01e0f363957a4235b52014f992456d8259de1acbe2e9a0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DKS682000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f290c05ec31d509c95f915480438a3b65a2ac3d0a61e471e4943e564050796f. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DKS682000106.
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 0x9952f5dbea532dec60ae49dcb171ddffa2991452cb32d9f8dbe88106ec8be84c. 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/FR10S2257121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d15b7119f77da1ee4c2347e4d591de5a4baf5560c525d7204bbbb74fd7d803. 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/FRX282348087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ecd1e0368997b30936a919ada1a39788cdd56fbaf5f722ba68ea4ca2e7747a. 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/FR2X41928637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb80e6f0427a4442fa7a9a455ef7024f888d31dee591d035392eb92aa1f3e52. 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/FR59R1876218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7975b2acecbf52f5dff3a50acd36037a09035f897001475053c99b08f846b1. 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/FRX872158300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed590812e3ccda2987cd13cd8dbce0c2bd90c31b2f662c5ac908542109d2c0ed. 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/FRX872158302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c7e9b61a9f537040ed62d6a392472ede27c69696ad14ddee55b4c142dc0788. 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/FRX872158303.
Las Chicas en el Club - Xenia Xamanek Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7014a0ef7f0c86003caa04ca2b62a004ff13d69bcbc63f6f86426d3ae1a137d. 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/DGA072225830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0557f241c15e5651ea5c5af6d03aacdd05cdee68ae9974d17135a5254efad5c4. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DGA052291443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dab2d5a514589eeae01d8d109134954c330c071d4cdf1db1d1ba723be46fe36. 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/DGA062255342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb16e17d957f789c3f41ecffd6c38a8e088b1d20c3f5cfb2d1702598ede9038. 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/DKPF52000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90218e09db8fb50ace1b3a6dd1ab46ac2ba6b570e331c75079b05eb64e87ae0. 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/DKPF52000204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115d5f4f140a57404c9462f6e9956ecba8c21b3cd237ee93a025628b57360ef1. 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/FR10S2243592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb05cd74c2cd597a3b4dee5c4ca0f0859e83e68f5a81b6db5ad90be4cd7fe984. 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/FR10S2243593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7081951f3fb7a708a64aae9385d01b4fcbb9591facc6b70412e9f73e43d5a902. 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/FR10S2243598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007e3df1e7289f89adbe0e26d5a1aab68092952ee7d0e405a242e1de07fefccc. 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/QMDA62111753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039462242ebf4123af611aa7f2744dca1a485c6dc3b35ced9afeec7063531e80. 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/QMDA62111790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a137b175298b6b45b7d5b050917cf1fc98ad2ba850d14e1ea4e166419746e14. 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/QMDA62111797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48174924e5c241ffac88aa68dd53c52c9a681be4caf1401057dd9ce412dba12c. 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/QMDA62111800.