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 0x5209093d7a0ed682379e841a7d4c3c9f4260d13e7dd8fcaec095ff6a8d01511f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/310968ad-a3d0-4167-bb5c-d2fd93d8b46e.json and https://artists.proofprofile.net/proofs/artist/310968ad-a3d0-4167-bb5c-d2fd93d8b46e.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 0xd7658cf65184938e56cf4404894217a17002f125cc1047eaaab9bb5ef8075e31. 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/GBWUL1911258.
Suku Suka (feat. Zain SA & Kabza De Small)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06941dc068fdd6c4b8b0c9dcce95e64ddc15780351c44499c06563778a34e311. 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/ZAOTV2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e99d0a9b05c1015459fb6e602e5afa5701602f509adbb919044b632a41d69e. 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/ZAOTV2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90109629a8e275b4baaeb9fcd69589fb581cd919ebe66ee1ec26d4fb191057c2. 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/ZAOTV2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca295286d8657a943bfe935de6d816f10235df577c3fc0343d9f7849aa0adbc9. 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/ZAOTV2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaed1422536d77db34d51baab00e196e8fd484fb68677f1c6e12b6a39f010286. 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/ZAOTV2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e72c0ea0a8be0d5cd64df2c086733e8960c76d7e66315c3c1231562466cffb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ZAOTV2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb5b66382581a563e3bed2bd9931f37541c0b84a727bd20680756b2f57949ab. 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/ZAOTV2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23094a8344a12094825a6ce035ab299eaf72b50000b733af249b681496356ea4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ZAOTV2300015.
S'hamba Nabo (feat. Toss, Kabza De Small & Professor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9891570938f95cb923d3a04f14a02b73d9e612001d4f938f1b6668fd87764f. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ZAOTV2300006.
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 0x049b6485acc17d6f7ff7abcceb96b6e931ee82c4ee8664383c8d7cda74cb9fd9. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/ZAOTV2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda963f8b0792ab6c884dadbf6cce9bebf2adba236d74b31d5fbb716be6990a56. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ZAOTV2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1189cb857f090e27196b8123077931f1dec4e6d47718038f7e1da87d3f9e60c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZAOTV2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bd0d38e1dfe04604f0fb759601c755c66b5f4f4663181d116c88c85f72d3f5. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ZAOTV2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5d27286b24cb3b16df2499bf95104af5b157411c960f37a03229c0a5f3785a. 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/ZB88P2400486.
Umzikababa (feat. Yandisa Ntusi & TheSiix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f0163f171d8b136454adf5577d05ab691258c696f3a78bfaf5b30964a07e44. 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/ZB88P2400487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05eef5d3f7ec5e9115c0d48750542ef62520e3c0dca93a8c556ce93cf0af40da. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ZB88P2400488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb6f01b70ad20ba9f0c946180d1c31b77560348ab8dca33116d464c35d03319. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ZB88P2400489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a227599ec783c2c0697897696616c5b5696100eae6726fceb25f57ed8d8ffd. 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/ZB88P2400493.
Praise You (feat. Kabza De Small & Stakev)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97eeaf37efb826254c77533f3c538552804f23bb1b7269c1c9252ad97f8ab61. 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/ZA56E2416621.
Rekere 6 (feat. Kabza De Small & Stakev)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7b1fdd06eb657680126f40c204c1ec54e0f70c49c27029e486ca4767efc977. 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/ZB1OS2200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4aaf69a63c0ac4cb4903410aecfd50458426d42212b2cb92c29a862fdddc926. 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/ZB88P2100077.
Banganoya (feat. Stakev & Da Muziqal Chef)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bd414f64de442a01a0364501cb0fb29d7d27b5451f9cea0161f53c30b30cc1. 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/ZB88P2100034.
Active (feat. Visca, Stakev & Deeper Phil)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0779919cac6c497006ab16e8612138fd2a707928cbde4d47876c87856ed15160. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZB88P2100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a6edb93d6e9387e4e0129d9469aa23f211cda091175acd25f294f5a4836484. 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/ZAQ652303176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aeadfa80cd12c5e9ab4ea528d3ad9d111ff1bf8f846bf07a7c0ae70fe4d0ac1. 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/ZA56E2304208.
Grootman Groove (feat. Stakev, Ceeka RSA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cee61953f89164148e9d9963ca832232fa277c26e9db315ec1b07609a4ccf9b. 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/ZA56E2304209.
Mali Ye Phepha (feat. Babalwa M & Stakev)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7543ca11964efef949d691c259626506e9f9186d330762802e10f811d4601eb. 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/ZA56E2201146.
Soloko (feat. Kabza De Small, Stakev & Makhanj)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1770407272d22b90e620c15d372cdfffe867230f96aee284d70c5e30157f5451. 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/ZABZ42200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b2b8997d57e1b5c43d4e6f018daa57757a8ca1aa9d4a6d62b68f5c5327c404. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FR96X1987294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa15cb55f52e4d00b79ed6a48986aac9e63ef814de5890d37ccc1c7eaddb1778. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USA2P2423834.