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 0x02cb7de650800407ea72d97b305ccaae04e2450b1c84f30b277efcc5b02ca39d. 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/baf0bcf3-8cdf-4b1b-b987-812cc4e46a16.json and https://artists.proofprofile.net/proofs/artist/baf0bcf3-8cdf-4b1b-b987-812cc4e46a16.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 0x0dd696f933ce8c569adcb84526752f71531edef136e3c37f4667e2ea1edb8fbb. Chain 2 (Bitcoin): anchored in block 957539 (2026-07-11T08:09:42Z), 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/GRLE10400393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4c1702c5d68fb07f622b43052bf2b56ca7875579b6ee9ae395be769f3d0bb3. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:35:42Z), 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/GRLE10400397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca01e892e52a8c1a9f43c1e7560f142df3a52e3e97a1a35c3abfa7c63596ba51. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:51:18Z), 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/GRLE10400398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c50148d49012eea53a3ece197e6d0374ad8f17f2e4c5cbeefd2f87d27239d9. 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/GRLE10400399.
OPA! (11 Nea Tragoudia Kai 45 Live Epityhies)
14 Megala Tragoudia - Vaggelis Konitopoulos
Etsi Goustaroume Emeis (Live Sto Galazio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef6b1dfc7d462f3c37155f69c4f197eb85ffacd3baebcb020fa765b51efe026. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/GRGM11700911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe049e987a52d568b8505e1efb32255a5be6453b2fd8414251fb0ea133200922f. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:42:43Z), 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/GRE019000664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b89624884eb7899a012aac67ca9c1ac87238e3aac7576520e5a8dc3f1ef8186. 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/QM6N22262952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd696f933ce8c569adcb84526752f71531edef136e3c37f4667e2ea1edb8fbb. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GRLE10400393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f558c163e94f75595f33a1d8415e0b3975416ba13b6c32bf0ab35ad2ce7fb6d. 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/GRLE10400395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4c1702c5d68fb07f622b43052bf2b56ca7875579b6ee9ae395be769f3d0bb3. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:51:27Z), 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/GRLE10400397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca01e892e52a8c1a9f43c1e7560f142df3a52e3e97a1a35c3abfa7c63596ba51. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:22:17Z), 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/GRLE10400398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c50148d49012eea53a3ece197e6d0374ad8f17f2e4c5cbeefd2f87d27239d9. 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/GRLE10400399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566a050f0ed9c8a03457ccbacfd7704aab430bff4711f82beb7caa3bdfb45ac8. 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/GRLE10400403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8812749c44a801d9e7a2e79002a5258aabc3ab585221ff02a317b9b0927b258f. 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/GRLE10400406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58461a1cd67baeafaf9d5254bddffc116ab5d90f22d43a50bb2224c8c8599ded. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:35:58Z), 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/GRLE10400409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1fcfbdd2be7a605e143104f453ace06ef79b18c3fcf2687645d532390e5274. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/GRLE10400412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74300835e329b3b580fd359c242b41423b89579964873f3a850546382c283fdc. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/DGA072400912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1772f8810f5b20670fd52a0e8f51494e3ee8723db9e784157df2dc5e63cd73a4. 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/GRDMM2500272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf8e2cf363b3127054709d642d3e5c7bc44dd962ac013af249f04ba305b354f. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/GRDMM2500445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff20dc365473f2bbfd73ed02fac58f9fa1414159297da874b75edf78d0fe3758. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GRPT12500111.