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 0x910bf607e1757e6a250427f39100c2f3c889d80cbec2b08748cd8a263406ddb0. 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/8354bdd3-e1d9-43c3-a5bb-6c47a73348b7.json and https://artists.proofprofile.net/proofs/artist/8354bdd3-e1d9-43c3-a5bb-6c47a73348b7.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 0xd1ece44f6fd5e2928fcfa2beccd1413094129246c931cc9e02c33d3e5799f6ae. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/EGA252211476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657454e454b4190eedfecc215296f6a39ec6f342f16b80e23bb918b626131a6b. 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/EGA252305557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32df094d448f0085317ddade0a725f1e846919c8e3dc9cae24a9d186e83b8d5. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/EGA252300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afec5b995ac2cc78efe771db64b78babfb8e09b27b0e065c3c4510063aa2d2b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/EGA252300349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c6e036a156742534b40aa4a56533cf7ca0d8b76a01c1fa72ddd344d8b0fb93. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/EGA252300524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152bdd7137bd7bf00fefda70ea2255e4b6dc71c08ff9311a551af11ffb2f1cc0. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/EGA252300526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4300d872cd66dfc415015d1815a1f14a87bf587a76c60ea425cc994f8c4eafd3. 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/EGA252306141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabeb600cbfebeb5c5ce59415f1410d8c942fa12c6e518ccf076a6b911db14be4. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/EGA252306508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a8db2469760ab45a09175d8a69f9ad1637d54c63e0346afe02495788ee5df0. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:14:25Z), 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/EGA252309262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84e5917f5aa882b6710c20444b1f662e74a7c31a435c266255e7645f79d31e0. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/EGA252409605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f70e081969982853f71c3bccd4c67cf41c6c3cae0da6eab498a6f7e85ccc328. 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/EGA252416349.
الغربه صعبه ياما ( مزمار السويسى فى ايطاليا )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1ff4db59fa3a6637b34f345fa62f880823fbb6a05802dd153ebf603bc60c8e. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/EGA252500076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cdffec0529a8bd46c7fdc5266f8f2cf6f12020bc664f17978fe8fb5a387f96. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/EGA252500147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187e81eba243e76efcb66d5bebb18607e1b96bce611e3a3f0b522300a7938464. 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/EGA252500480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e745428cc8c0c23662dbb24fe166706cd4da5b46655579066801fc491ae5292. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:42:15Z), 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/EGA252502129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968080a19269707bc82c98f7680ca838c1e3d4ff9049d5b3babf8a126d51c347. 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/EGA252503871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66de2bffa89191131d047bd9976e3fae96c60894fc9b58cc7e0b49f7f7b94c4. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/EGA252506665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7593aad041122a056b15a591ab63709283d0be8fe7511c7443907f4f6dd7390. 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/EGA252507617.