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 0x6cf86ff3817b3c517e4d433602832f5373c91f4d64c9b3d65bb1094db40035f2. 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/4ade63d3-1e8e-471d-b4f6-94c605487375.json and https://artists.proofprofile.net/proofs/artist/4ade63d3-1e8e-471d-b4f6-94c605487375.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 0x53652b4367be465d6721a480a3bd560886211d49de67c5c132df2aff9e74b5ed. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/GRL017800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94138c276f18696549c49666d2f234a48b7538cefc48357ef1615abdb2b41bbb. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:43:56Z), 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/GRL017800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7932adca09fe06653393aecd7712aec26ef9baa803770ccbbea78a03f50cd6. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/GRL017800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2239aa971b8c9252d03e37ccc878b5d6ba33f34359e18880c63039124b2cf222. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:29:06Z), 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/GRL017800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d123f198cdf8d54a0ace9be831918ae257750b19e1abfd7095a8e76e4d44d66. 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/GRL017800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f49a297234f298088e564da2ea85827add8d654f59a441f32d80e628e691312. 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/GRL017800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb071871c8141a7a6c225fdbff31cb2e9dc2367d961b047fa18aa42b54c7d9489. 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/GRL017900078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe28323e97b2a75d559e1134bd6b7ec4ba53d1276019f5ce9c59a2320d6de630. 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/GRL017900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf890e57690c257ecd761480b8b5f69bcf2b05048914c2b2d39e13b6f0e19da6. 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/GRL017900084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196be25a8e72399b9aac55da2c7703a6144032ebadf94fa3251099f1e0267e01. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/GRL010700567.
Pros Ton Kyrion Georgion De Rossi (Dionysiou Solomou)
Mousiki Kai Tragoudia Tou Nikou Xydaki Apo Tis Theatrikes Parastaseis: Meltemaki - Fintanaki - Leprentis (Original Musical Soundtracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fadddbce546ae5a63ee95ea693d1217c8e0a44b631c8503cc43d1695dbb862. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/GRL019900134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684a102eb782334cb2790416444d5558c202074b12f17a877b8b3b9c23936d66. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/GRL019900136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a08fa7d8b9abbaa3b549361a3a471127027ec7b182847b166e26731a984cdf. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GRL019900137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacaef3c0f234982b7bcf9feeba47a5c4450fa2ce1f62f40c33f7ccd1cbfaf0a7. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GRL019900144.
Rue Lepsius (Mia Mousiki Prosopografia Tou K.P. Kavafi, Zontani Ihografisi Apo to Scholeion)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf407e7ee332b0c7cc83075c5f4bb28fb46e605144a47d64b2471a2b568d8c6a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GRL019500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955a21006080babfd43a1add5b6e81f67c47b1f9a51b1b9eca324cf93984eff1. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GRL019500053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6583ec1c5e9fa4181ebef0357574c444f1f85d471debb26ae978bbe4e8699e4. 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/GRL019500056.