Canzoniere Grecanico Salentino (CGS), formed by writer Rina Durante in 1975, is a traditional music ensemble from Salento, Italy. The seven-piece band and dancer perform a contemporary style of Southe
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 0xdaf65e8e9475ca79466d27403d92ed5e530be1230cd3641f9b2da54e44096fd5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/356afbc0-65d2-437c-b73f-5365bd62a173.json and https://artists.proofprofile.net/proofs/artist/356afbc0-65d2-437c-b73f-5365bd62a173.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Canti di terra d'Otranto e della Grecia Salentina
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 0xe62326bf69c9d71766135bc796f5382309521fbd45526ecbe0e353f6beb2bc99. 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/QMFMG1402678.
Viva ci balla (traditional songs from Salento)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c49a2865dc05bdf3e9a179fb135de65bdb7a8fb7a6c6fce363fa28f8ea351c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ITC491000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4dc6c2a8d9773a7e5359153be37331b353abe45880d8e52100047462051be3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ITC491000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc97a69c88afd3c424bba875e1175eabfa400fead2158bb383514b7dacb553f. 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/ITC491100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f353e6f32d746ce7c82da5f64f55df5615195bdc791b7add7119cb134d4a35. 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/ITC491100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5cd132123b16a73f9d2f84ce7478d25c7ef457ff2516603cae3dbf0d202550. 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/ITC491100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1f463cfb3be0fa9b49ad4a94fe88405d367634fdcbc7096a027e360e0f4aa2. 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/ITC491100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2614efcd62db1109b56d8a5f7840a663f4fa26760fabad55cdd21234bf5114ba. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:23:38Z), 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/ITC491500156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089a5710c3cf5dd7f0f57d7ca58441bb9b427a4b4e320c012ad096abd571020c. 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/ITC491500159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2818c51756009de7f4fa00164c374dafe6303d5bcc9e908251038fde74a349. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T03:20:07Z), 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/ITC491500161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f322ac1f50195b838e3fc2b543cc539469d10a52102f2b457481d8d7c67ebe. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ITC491700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7efa62759db3fe00cf2c5e9ed6db171b588a00dfabcdbd0db0bbddf5556d7c. 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/ITC491700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb4a8676945af3a9a3de3aca50c08f99eb62db623d182c99c00a1e18a792041. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ITC491700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1eca43c39ad897d2980ccc206cf35cd9d28f09d67c8b9f3a416679017aa52da. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ITC491700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4c83fcc10362fe64ad837be223f4974819bedc87bbca147823eef04894a440. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/ITC491700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe305690593f2d05cd5cd8a0714d78a970b8ad02eac8999065b39987fb2cf21f1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:08:20Z), 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/ITC491700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16af36b5c172d065e9dc29b3cefb4e10cf7a933ff6b9aad04ae1193c12dbd1e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/ITC492100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dd6aa304237ed8215774595a8c14c2fae372b28881c6aa5c501a17806268e1. 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/ITC492100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4134207e6db5ac00127615740cbe8f81f5402c8ebe01e2166a6ed97848fdbb53. 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/ITC492100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbadcd85c367f5eadc86a61818ed0442439e18dfebf0316f7d902b933f88d05. 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/ITC492100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72e118e56e30959c7899aa1f1f232cffcfa2f8be769e8344236e104689e2886. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ITC492500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19aa0f6e4a15bfdb3593e39226cb81129f3c01507788fc635255c6ab3903a4e. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/ITC492500001.