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 0xdf13b36585649aefdf5836aa263d05f29784fb991d7b0c6f45bae7c086c1501b. 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/8a8fae8f-d3d4-482a-ac2d-e6cb797a5296.json and https://artists.proofprofile.net/proofs/artist/8a8fae8f-d3d4-482a-ac2d-e6cb797a5296.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 0x575b357b8f89f0eb040899e01c9ef4483d263350d2d201d9def38eaf9451a961. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/GRNX10400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2e6968aeaeaa6eb1fecfd0697877dd259d31eb503ee7549903f55f361d66c3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GRNX10400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08034b9aeb69c51fcaf37764733d3a4c7243f247a035cbc996fb485ad32a273. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GRNX10400126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc5bca8ed9ae38d68891d343623cc8e79074cec309cefef32450ce64fe0430b. 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/GRNX10400127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3f974aa2dff7538544a32a7cd46b7f654caea21230999a066ce92dc54a3d80. 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/GRNX10500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb268966f87a18c35f2cf41cdb649a5fd604818f0763bda116740e3866a99fbc8. 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/GRNX10500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc671a528dad8fe9d66fd7ecdc13801e4adb2fa472c334e5a80dced908f6fa41c. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/GRNX10500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b06e09924c89f1ecc56bf0160d7b4d29629c32eba8be87ef1f39ee2c76ff2d. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/GRNX10600368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1d5a3b35abeb7b0b376b03b5dcd73d351c751a59d452e1890ac31233319ade. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/GRLE10200242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ca7e11a2568ccb845b5a647fb9ae3774c1cc036b4d44c2459edf77aba9f8fa. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/GRLE10600191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b9ef6b16eae871a302ebd6b05e4c0fabc096b66fe7f9503513cccd71df64bd. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/GRNX10600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc0aef16106d53163595bff660d0be303916be450012f100068e8d43793671d. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/GRNX10600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5553f4e683c7d99dd53a06d5e1183e5d8a3664015cb276bd67e34effe2faaf6e. 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/GRNX10600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf2b299d0b38d996a8fafa3da054b8921f8026d652645402e4385ddd593ab70. 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/GRNX10600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e7036fb7c2e0ad7606bd1b5e8f63b80183a12b0637bb5d69161a05ac3a0271. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/GRNX10600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6919b26a31d7104a27c67136d9d1e7665973e78796ea9d77279a56475f6ffca. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QMBZ92069936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa37aa6bdfca7bf53209e0def7850f76697b1ed08ca18bf8861d4ab816493455. 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/QMBZ92069937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ee8891a2da794de60ecc9834d5752115236f3bb3bfd97096f02469217d16a4. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QMBZ92069938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13221befe5e4886e23db29e60124072a4c38b6c48cce4e5340a141f227b76362. 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/QMBZ92069939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73dfae2d3c0468c27e78cf7d06e53cfccfcb2615aaa2121ba1e65a72edb04b64. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QMBZ92069940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cedb38494c6bd8d039a0b4c206883657f8bde1470234ffd287564858dbfbe0. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QMBZ92069941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54d0ee9ab9c7aabc3042a4da5be890d9b1cf126a8813c2c7fc7ca6cf0e66fcb. 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/QMBZ92069942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb92f0ebfc3361815b5f9eac98d276bd906f4c40b0e150410be5cd00a3aeb35. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QMBZ92069943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82b7282e5929677d200bec59f6bf26aff9b35b2204e8baee16b7b870d145ac2. 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/QMBZ92069944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9c75983d73de425265c5bee077273180d8ebea0e90b936ea8a5f632938d714. 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/QMBZ92069945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16f3361fc76b62f7c3ec0c3220b58ecd7188b9d6615774e90b62ee550d27a94. 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/QMBZ92069946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ceeb2a8f0ed986798e3fd852307b034b3d70086e60f29097ace0de639da331. 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/QMBZ92069947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160c0ad31deb2a3011e34ba56bcc9e959560e0cc7dd191eda6bdcee9fc7f6b3e. 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/QMBZ92069950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2621a849a69d536835fb4907a365377c8671073ea0caf48b5385936000b668fc. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QMBZ92069951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed04a03610b2675dc0e50b8f200434c2114aa154c55f3f9f529e01e25d7cd538. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QMBZ92069952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8057798f70d301a939ee9586368259208309b1fb02dc2c832f0dd31e289fbe7e. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QMBZ92069953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674040f2c4d33fa94a9918e492d5be47421c812a398ee1e811d32dd5c5ed5fe7. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QMBZ92069955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc477b9f74b9118525e31faafc3a40ec89b24281293bd708cc77a9f9870f2254. 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/QMBZ92069956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce154e5fa434089f1b9214fdbbe688ca30d7be641b482e40b4507087c0420308. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QMBZ92069957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f41b3cd120a2219db65bf22242231dbe8c59660a014a50d4016edbf5927b775. 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/US6R21344071.
Glentame Me Matthaio Giannouli Kai Maria Nomikou
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd503e91b06a3c4d7e0a179033abd4c8c368a02b5b49883ca93e63bb16afeec9. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/GRNX11600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7535010378931e6f7996dd50395074017b16cf72d4aa74e3031660879ddcf924. 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/GRNX11600013.
Agapo Mia Pitsirika / Tha Vro Alli Gkomena / Koritsara Mou Gia Sena (Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a8cfcf4d70734ca5ebef01dd95a1fb0184ac06db3268838c930261a09afaca. 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/GRNX11700034.