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 0xd85b9716e6ae43d08f2fc91ad56a650b22f76307780ea0f194bd0c00227888e5. 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/f7d73ddb-7518-40a4-a809-6358bfe6f50f.json and https://artists.proofprofile.net/proofs/artist/f7d73ddb-7518-40a4-a809-6358bfe6f50f.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 0x6b5b883e15ab80bedede7c589ae88d47091b114d8f7f295f295e5ae941bb163a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE5AJ2101523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd98e6629946531be46479e7356652f4f5347813409746f358ea7ee62f193e5b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SE5AJ2101524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4219bfbfbf7c573f6cfa9af49ee4121bc28a14f42e85c4dfe339ee0932f1585e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SE5AJ2101525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a3428fd63c792d047f836af0d75bacbbb00b93b96615df1a8ef394674a32dd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE5AJ2101526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b7f581db3c5fcce6e0155161e83439e04ed6f67554153dda393fe4f2982bc3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SE5AJ2101532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52fa96a17eb44d6f5eb4d9729f8fc8b81d367efac35f2669945c84b35244657. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE5AJ2101533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d68d5ab3418b7c466d30744043cbde6ec5ca562221bde5d261d7865f3783a19. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SE5AJ2101534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49e275964aa7e1777817faf1e03cf800a6a3c69270e5f1a418b301cca4ce3b3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5AJ2101535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac05b94ef1555ccd2a242c83d6d5df708a09fe5e4e3bfb25dfc99a5173e7bc2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE5AJ2101536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf160d610ec94d2d1a1c6f7c03ebafb45fbd916af7c62da41cb951e5c375a1175. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/SE5AJ2101537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2c8d6bc0429b3e2b487aebc011832fb69246ed0fa240fc89bbce5145430d63. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE5AJ2101538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bb484660b22944d18811ec94ab4237b0d139d0579fc655cebef7d9f655ca71. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE5AJ2101539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ffe2d157ae0153c8592a6d68a555f8110685cab695515d0eb8bae63842a3dd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SE4OX1600508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed540ed37a9bfd5b702b84db0c83a00f5a6f9dab7b676470b716ed9e6f85c6db. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SEXZC1300213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6157135622f046d94757921da367dd836ff8db38e15f5363332acf89dcced7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEVQI1400703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452bcbe72696a021c2466c7040f888a6a96c77aa1247f40e37cea3864045a337. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQA2300163.
Kaliber (feat. Mwuana, Sikai, Linda Pira, Jaqe & Ikhana) - Remix
Kaliber (feat. Mwuana, Sikai, Linda Pira, Jaqe & Ikhana) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3600187e8abb9b67b3e62ff616b6426f1f04d1305358a057b19f8557dac1de68. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEXZC1600301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d458951242455469ed22648b242b2c3ac0888474111f0e879653d1a231eba43. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SEBGA1500263.
Där dit vinden kommer (feat. Jaqe, Duvchi, jj & Joy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b07b82a596a1cfa9e18be1f486bd88b5eec04144768243bf5ff271cb7b87ec8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE4FY1400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79cf363ba5ab4dd2ae8250075b89ca14afaa08f4d473d6e34c485bebcef2756. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DKUM72100173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0d57d1d5d4fcb09fbdf6cbf4fc4b02dbf4313b57eedd0cc7de7a084f349aa1. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/SEXZC1300204.
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
Gal (feat. Jaqe, Lilla Namo & Eboi) - Modern Swede Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4a579babafcdcdb4580054707c5d643718153418d2af4aa43579e94b044a7d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/NO37G1301010.
Chicken Teriyaki (feat. ROSH, Jaqe & Amin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731d3b431a5d903b49d12d431adc11390b48cab567e8bbfacd2599c70a362215. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/SEXZC1400201.
Tålamod (feat. Simon Emanuel, Penga' Per, Nebay Meles, Duvchi, Jaqe & Dida)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91b83eed00bdb3238cde9db14bff33acb113f0805f7a0583aef6012d627b4e6. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USHM81398297.