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 0xde176b9d0974704c4dafd6aca394d6682f53c042a909467cf73654954ba76fd6. 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/2bbe820f-5518-4d22-b318-7d6e86d3dc82.json and https://artists.proofprofile.net/proofs/artist/2bbe820f-5518-4d22-b318-7d6e86d3dc82.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 0xb64382ab970f8dfc25c298ab19b6e0da1303b07d46b9a1e7ff52efb6715db372. 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/QZANL1734440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24374b7b617ce6e89f395dae3ed5e62a9515d6ad6939dcd6cffb196f51a83635. 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/QZAPG1715029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72fa52f0cebb14f06cdaed59f2f347d1be5bd79971cbc6223fc75b89dd42dbc. 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/QZAPG1858263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54294057740aa03393dd680be6ef926c535dfdbd064fefbc906ae7fb828ba5ba. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZAPG1858276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f5b8d8308bb6a2c15fe1009dc651b5d61d9af687728e4a3c2f03800aea1d53. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QZAPG1868445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689fedffc00a0fa29f94230a6cf59c4a40ae9e2b1a958f13ec5910e158596910. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZCE61854706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ad3ec8ebc8dc68f52a58fcd77485e0e046238fc9bd18e2dc771ebd37d85f7b. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZES71935345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed6875700337fc7dd8e4cb1f5a17704d88f74fc24c49cdbae5165785352599f. 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/QZRP52147881.
Felicitare, lipsita de stare de sarbatoare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68baacdccf87e71061bb7cd8a5e9f2197d221659a36c0803333ffd328b45a50. 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/QZDA82224317.
Muzica scrisa intre Golitino si Begovaia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24276473c17b705bb3ca7be9cb1a19f4a9975d4cae29d9d1bb5cfd58206f9a2a. 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/QZTAW2297287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a92497efc2841a9c508d5087d9eb315b6e6d3e6b35d331b7876a58585c2efa2. 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/QZTAW2297302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cd5a5687c40a459131ce45e5deb7221f37e9f437d55cc4fa9b59ac8d749911. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QZTAX2202175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39485e96ad4f5801e2b40af5264c09725321f2c66942ec065655ecfba99c8518. 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/QZTAX2202182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a5eccdbdb4d4130e306a7d12e80e8ba4a1a811dc2a3fbe4001f7a9517500d6. 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/QZTAX2202189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5721ebd55875f113a65aaf59b54d3200b8b59e485c5c42f458e9c88064a55564. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/QZTAX2202190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba50062e2913445c35cd0e99ceefd45349fe5c91c55ba5ed40bb33a952b1aa8. 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/QZTAW2295372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5166f2a66def62dc8b94b607ee1804e3e6e141e1eef78fa58a4ede2a89b54f33. 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/QZTAW2295373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d342abff99d465ec139f0f922761b72759a42c80bd2f389d67a79a28260872. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/QZTAW2295376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5b73ab7e5514443d54a8cdf3abad755bf5ce3a196998660f03d92b4660b132. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZTAW2295377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51caf252a3fda09f39a90ddc6d3c9badd578e2756a68f9b92626283d28ccdbd9. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZTAW2295385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf655c42f65fdbed4178bf537261c3ae0427feb5b35e23166004a40596695aa. 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/QZNWW2463924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a7b719a9717396605fd3987bc459c0ec641d6c03580fffba059ea0f6abbd65. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZNWW2463926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2053c4f6206039890e353a36765fca71a1652765d336951033c5bd858d00daa. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZNWW2463930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fb325e8bfd338dfe04d803e794cff080964421ed82ac1218990bca80de7451. 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/QZNWW2463932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33bfa9239809d47ba43c770c2756c1658839c196936984c99dce45575a54e34b. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZFYY2510615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481dff9ab1886ba5b993136f38f24665f6844e855147f2aeee8bb70c2d4572bb. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZFYY2515883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c13c984ee1cf26b215273b2b8ad747b1306f8706708baacc3b09a0de9f7f46. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTAZ2512235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1191073e829b7bbfc5025dabe197265cd08aa6ed2a29a82b2a55af1c8057eaa0. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/QT3FA2582111.