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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06dfdd2f2ebb3b6400927dde70bf5a60577b2a45d9cded4843282bb41b46b761. 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/a819c01a-6e4b-446a-a9d8-f858a12b4588.json and https://artists.proofprofile.net/proofs/artist/a819c01a-6e4b-446a-a9d8-f858a12b4588.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5984a3dc671da064d0764d22b7e6d6b132b988184726962c5e89aeeb7139e5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GRS018800163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174227a3b92e971145132e1be361b7019c2b9344c2c908b5664a8c5e01e83d2d. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/GRS019000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15bdea4d324536f47618f41b3b927f1d968815c04bef45ad028de31b4de2910. 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/GRS019500113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2370462423508ec2db171195ac47fc3071710ad3aca99f6ae20ff4de87de0607. 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/GRS019800120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a21e1ce3b7e20c0d96bbb9a47dbd26ae52e8897d1aad873adadffc771ca183. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GRS019800122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d97a25f0c6c281dd88e88d9ec8d1ae7c9528fd5d5d862649e7a66f267c489c. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/GRS019800124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1b591cefbda30316bd3cfd28997276f51968939a49b8b18cee43b0e3d69e3d. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GRS019800125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0db9e9757744cffcca585b72c8e28609813f42b7617be5bf9e41e140275bad7. 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/GRS019800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a996e008782e32dff18dba09f76ab436fb6ffc523ebbb9eafa4f5be34b5d443. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GRS019800129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d8e886f03b824fc016b2e99692e70942a4b3ee22712f0a62b292c2a8b288f4. 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/GRS019800131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e81f036508eb7d1f4b16b4f7dc15101bf3571eaf7cec724a8a527d5811bda7b. 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/GRS019900373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32fa9d3e2a78fbaa4b07f2d50c3d91fa5cb8581c835c7716bfe0ee43e0f1912. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GRS019900392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1d759c6a2441a696c86e7994cebd64f3c64d5a17ceb38435af970fce261387. 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/GRS019900376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0d65a4efb0fabbfa562a2b0db205086cc5df53b25b455acd4b9dda716b815f. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/GRS019900377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be740d57b6beeb9243fb0927d1f6d6b2e14c1c7bff194c8ccfc5c1380a6e918. 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/GRS019900394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782f1c0e8fb40fd613ed499a51937de698a29873e051d028dd7819ec5435e61f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GRS019900395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486cfb68a3c48550c7cf50d7bcb98b772c5e88e9920a84011d252a3cc7755069. 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/GRS019900378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9233025448f96f56e406e5f09438353a780fae5e67e521013c3a1a9750534ff. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GRS019900396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aae15a0c6a6df8e41f7c061068efa017a18aa239d2f4b832cd2d4d54a4ef974. 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/GRS019900380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb32725ce850b6b4d1211bc4b87be589ed1b5302bf02c29b55cead8682698520. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/GRS019900397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14a435cfd118fe01801ab0b4996d53d8f0cbcb901753a5cfb3ef34677ecbf25. 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/GRS019900382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e61c20f8f63eb04b48a19166aef53d158b6979c00998041327094bd60128dc. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GRS019900399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49310318c1b04d5c35315a4747db5ba899545dbafac1c27a2fa59bb8f1c592e8. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/GRS010100249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5b36522962b6873c21a52ef76ef604c2c166109189b69f774c9891b4518665. 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/GRS010100251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13b1e1b5a23f4516e357a049b4f944ebf0bc99ec8a6c87a5a0e06fd8a5325d1. 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/GRS010100253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20bf0672c0c240a17607390ad11843f0f7b3dd98de3cdef3a739d9a6b0dfa907. 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/GRS010100258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8277c962aa4a97c5290d4281c8ce8e0aeb72015e1248d35e67aa88c2bcb15f. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/GRS010100260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace23e77846476989115ff9f5646247ba9cdcfc1336ffd1a33b716a1d27024b6. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GRS010600451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea09f4226a3b743168cf1146a81c435feae89efb1b2ba6500acca601a1fc7c66. 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/GRS019800130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ac4138c963088f61f1338a387410ed89add12842e6510b7e330fe00354641a. 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/GRS019000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd1bbcf0f0eaaa6c3660681d93a0bd7b601015a2d659ec4bced497249a8ce15. 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/GRS019800128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de5e4f434a58066edc9ccb1edfaf960d4bd258fa6bc8ce57881dc501c7dc524. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/GRS019200307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e27a15e4afd2b8e80bbcd2f76073393995efdfa518f131c08edbde6f0c2763c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/GRS019000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187dcb2623bd12e7c5869f53b7dd5d5dee2cbae05864dda0439e2115e8107b5e. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/GRS019900384.
Stavrou Xarchakou / B' Anagnosi Me Ton Manoli Lidaki
Stavrou Xarchakou (B' Anagnosi Me Ton Manoli Lidaki)
Manolis Lidakis & Christos Nikolopoulos - Live
Ta Kokkina Vinilia, Vol. 1: Manolis Lidakis - Stin Kopsi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b7914d009fd59bda4a30c85f1edaea27ad841725aa17e14587bedcd7147455. Chain 2 (Bitcoin): anchored in block 957838 (2026-07-13T10:04:52Z), 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/GROG12400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca531b5f9cf7629d4c3a02cb5b8b5a73aaaf78040a9c584a800831b6e6e3fce. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/GROG12400020.