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 0xe2f5dde764d88a9d43383c1b6780a83ac1c9fe42bf984bde5174fda4b8be4fc3. 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/3218841b-5f5f-4271-8749-ccf40cf8a97b.json and https://artists.proofprofile.net/proofs/artist/3218841b-5f5f-4271-8749-ccf40cf8a97b.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 0xd533dd2416b71a7c4af0502442c7f499e93c00837d6acf4c9ed3227ee45da939. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/GX89G2396810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadbb0b9b03dc7763955ac81a7797e3c8ac3a4e720ac7d4db6d21d15cb61cbab. 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/GX89G2302759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b7ce86beb9ed888ee4706d7e248311a796511140742b6494fe5cb156df7b77. 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/GX89G2390201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25507390c9e66325f09ac640e25d7d4ec3239db7389812cbfab99f36bcce589d. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:46:34Z), 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/GX89G2306699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931512668e83e747d364ea59da892c6a556e6d35d45299472d58964141d03d02. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GX89G2355072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4222a04ca39c774664f0af49ea4d9058c27e26fb21e4282e7279b1d48ee93faa. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GX89G2353069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd6b11181a64c73feadf493728766917772819db3718e1dd631a5242bfa99c8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GX89G2333756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2e01654a7cc982144915a1c9456a270c0ce5431d547d091158595ad8ad8637. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:46:20Z), 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/GX89G2320184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc2a8d577d3ae4a5306f274b037fb4e0c1e2aba6c110e98a52dcebf9a606fcd. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/GX89G2300943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d4d425004aa32c5d43177f688f8175e303a5c7930a99ecfbac8683609fdea8. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/GX4R52124449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c6e7ecd7d70af88aa058ba095240a1ad7311b84f7d165ec3764be8d04ffe99. 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/GX4R52143918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae421542dfaaa774b3580239820299ca84aee2831967cee515af502fa8a05af6. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/GX5MX2258979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ad7be099d27c81981ccc9ae01dfac82017dc81e4efce784f3947f445073af6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GX5MX2258981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc5395dfb4bf0016b1dec6ac3c5aeda84b2d56b0d0e85efb0ad13c35f4ea238. 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/GX5MX2258982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2cbc3a748f75edceeb1bfd452e89143c6f99aac241dda820f59234d1bba5df. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/GX5MX2258983.
Francis Hawu Juma live at Anglican Cathedral Hall (Live)
Baba titungamire / Jesu ndakapikira / Jerusalem rinofadza (Medley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35aa8b9068907bf892e34107f6b2bcb14482aac94f4e6517bc81064fb36d612. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/GX4R52354832.
Ndokutendai sei / Tenzi makanaka / Rudo rwenyu (Medley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b463ff8051712e101a7e21c797286881367da86492f44891c830b1727bec27. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:25:02Z), 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/GX8KD2416468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8b08abf77a6836be51d9ffe6bb655c04ff539221c666eedfdad59b91150e07. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GXBDS2516492.