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 0xda5dae26ed19329cb8745b41f8810274385438f27f00117d21b9393437dcd796. 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/b8f5ffb1-a087-4ced-a831-d3f56ec1581f.json and https://artists.proofprofile.net/proofs/artist/b8f5ffb1-a087-4ced-a831-d3f56ec1581f.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 0xcfcf89903758f5bdc80962ec970876e6330475f34120d5caa00fd21395f0fc18. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:41:37Z), 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/DEN120501759.
Greece-grece/the Very Best Of Paraskévas Grekis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccb1fd9ed82b1ae89be47ab1bd4e00a98284a890b08b6572e76f1baced96932. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:52:15Z), 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/FRZ539600184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c2c08d95da5bb8df060300105c7f27c898d48752dc7c699b6c9b089c0f8e4a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FRZ539600190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efd267dd6a3b67b92bd1a62b9fd28546dcc481be38ee5eb78d19a88704c011d. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/FRZ539000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c55bbca1c155664017b9f80e7c3615c0bc8f999c4e8f3672a110a27695ce24. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:25:55Z), 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/FRZ539600192.
Greece - Grece / The Sound Of Greece By Paraskevas Grekis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63af3e1caea1659aed828f240b93ad1bc3814482da00ee93f82a3923ae70bbfb. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/FR6Q60800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9445de6e810dbdf4dd10c6212b7140592b8aaa16065f863550f1c163981396d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:29:20Z), 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/FR6Q60800078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64db071dac50a09b21fad455d8812933db657fe1f2ee2ac8f7f2688d51904e41. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:59:04Z), 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/FR6Q60800079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d05386f160dbcaf239241561944f3aaa5fb2366476558f25e24ec0f2530aee. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/FR6Q60800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1574f80f03709592723f5697ed234bf38696e5c036372daaccf5abc29ee33f2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR6Q60800081.
Ximeroni Ke Vradiazi - Hasaposervikos Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde35bea104799c9499dff3706f4f4b9f4399c471cc1f9736d30e324cf2405ee9. 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/FR6Q60800082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c80ca2e6008ef345c6c9be70fc39581f2ee3525f55665fc3aa8b4b120c8d670. 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/FR6Q60800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8a8d1db875ed66d56f73723633aef1d10d05ea9d0a617396e887cc7411c1e4. 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/FR6Q60800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca94832711a6f7538441daedb87924d192a330234bd6ed1b3c8735fd01b8685. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T22:50:01Z), 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/FR6Q60800085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf071f7ea941614a944daee497b2dbf82c5b8e4445e6685ff251d7e905efe286. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR6Q60800086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf81501586f2846b2c21951523963b3b16441a2268d16d6a1c6aa92714fcb118. 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/FR6Q60800088.
Greece – Grece / Mikis Theodorakis Vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7e2bceedcbcb269b462a6c86787ac94790d54fec1b332ff50fa1c6ca9b51e9. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:33:13Z), 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/FR6Q60800068.
Greece - Grèce : The Best Greek Composers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2617922b62162ae04694b262951a0abd130abd7d8fb4658c2599464be42c502d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR6Q60800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14ab4274ece00a2514d8befcf0b8a28486d0c7b43e0b76fc6203045b658eaac. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FR6Q60800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b701427e5f8913b395585bbfd97bc192651bc8d6ccfb8c419e60cbb829ac34. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/FR6Q60800064.
Greece - grece / zorbas the greek / gitonia ton aggelon
Éscale en grèce vol.1 (Avec Paraskevas Grekis)
Éscale en Grèce vol.2 (Avec Paraskevas Grekis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9351398c842016e265eaaf31bbba97aea2d71909cdcf86167934c408a227062b. 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/FR6Q60900140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d907e6aa4c40457e7667399477de9424fa10e3bdc1e18948f2eb0f4332ccbcc. 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/FR6Q60900164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeec5dc832fe302d39a6625e4b7808bb65f16a64eb32a3bb35195bed3f165d86. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/FR6Q60900169.
Greece - Grèce : Collection Paraskevas Grekis, Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e1a7a434cbfba55ab0e7108b1347b43b3bc7dec0852f82f463641e47fadc72. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR6Q60800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba2002152a1be4a9b0073fa172e5cb84ed1d1403431e56b6d197f7b29507b7c. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:55:38Z), 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/FR6Q60900173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050a886d1763fe1947b3900098362613a5e38cf1a3f9475390ccc5843f23a6a1. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FR6Q60800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757c1a50ca0786c9e4b89e975c82b9b5d3bb45435cb926506f38e7ec50d52157. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FR6Q61100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f8037c7321ec9291d554bb17ad78dfcb552fa3440dace2b85a257287164eab. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FR6Q61100204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad221ca351508577c495a78bff08a5827ff1589a50632203337c43b481a409f. 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/FR6Q61100200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc694b1a24bf29efb66dd9148b264f6d9b5f5a1916771813429505752e8387d1e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR6Q61100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e79b4a73ea689a05d59b5c1039856e896b2700253f3cfa4014e363bbaf71f1. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/FR6Q61100203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f8037c7321ec9291d554bb17ad78dfcb552fa3440dace2b85a257287164eab. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-21T09:01:02Z), 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/FR6Q61100204.
Musik von den griechischen Inseln auf dem Buzuki
12 danses grecques au Bouzouki (12 Greek Dances)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d75ed583839d84c94ac74bb0535cad53d899394ad5c3ca3022e8e1e7d108781. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:40:24Z), 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/FR6Q61200212.
Hommage à Mélina Mercouri avec Paraskevas Grekis (Grèce)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3924082bc8b86ea124409f301686e56d76fdf17447f88937ec8e0645f6d704b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR6Q61400232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54443a7e3f470407df56241349abbe060740b03c19460f29e01c4c4be06222ab. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:08:23Z), 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/FR6Q61500241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3924082bc8b86ea124409f301686e56d76fdf17447f88937ec8e0645f6d704b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:26:11Z), 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/FR6Q61400232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99189ed975e462353cdd58d984cf585b19be0160e632d326a3657e6183a9ad96. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/FR6Q61700259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66294149434f7adfbf9c618af14cc53592fa28e66bbe19d0c7e0caa6e47af0f6. 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/FR6Q61700262.