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 0xae1534217a53d92495c88a87fc9c2b2d69757e278d06908e991214f8087fbae9. 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/80d1cb5f-ae75-492a-965c-b18994fd3bef.json and https://artists.proofprofile.net/proofs/artist/80d1cb5f-ae75-492a-965c-b18994fd3bef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Istimela (feat. Russell Zuma & Von D) [729 Vocal Mix]
Istimela (feat. Russell Zuma & Von D) - 729 Vocal Mix
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 0xeeb9ab3f7b3802724519f92aa51bc19414778d558edd5359167423da6e430bb4. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ZA41S2224375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d29390b0cee2805fcdcf1f8396613c18aa5670d9935198229ec55a63603c6d8. 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/ZAEI72200578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc640a0c75b5b4a51e47585183cdae8c5722bd2bc4efbd2239493d78578cfb775. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/ZA56E2304237.
Khanyisani (feat. Bridgie The MC) [Original Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5c0f0137750cd7895aa3e5d7b945da94c08061adff17987f85df98a9b95e03. 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/ZA56E2416422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6094252d4ba4b09f96fb1e52d0b5b6e6c90e7a38c6b157bd89648c689040843b. 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/ZA56E2416424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452dedd17eddcd3d785f77c052f956a90297663d11bcddd5a9859ba8580126f8. 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/ZA56E2416426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd50d03acb1341dd9d55ce9f69a23d0ebdf1a1796738fdff58dc5d78d5bb63a. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ZA56E2416427.
Bahlala Bekhuluma (feat. Springle & Tracy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb247a7b91eddd6ec80555e1d21f96d6050c7b49c5d6d01f47b275338c1b8bee9. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/ZA56E2416428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82167c81ebca2cc11b5c033d22aaa1a56676099ddd3ecc65a95eb1f1c79d92dc. 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/ZA56E2416429.
Ubuyigugu (feat. Hassan Mangethe, Kayise, Ivy Beats, Fabian & Kota Embassy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc856a685de0e3a5a2bd08df3c6ea04f818e8f4fba3d382271cef44b9bac5c0. 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/ZA56E2417031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2075e86fc9d84a48b08e38718f9efea59c253d3cfe442dad36c176e3c3a5cc5. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ZA56E2526966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fec41f27f069dd4494658e9be487c99a26bcf40e71664d23e850a413993e7bc. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/ZA56E2526968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870b954aa76262384ebab85fa64118b39986cb2239c17a65ba80d0d04b654daf. 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/ZA56E2526969.
iSivumelwano (feat. Hassan Mangethe, Kayise, Ivy Beats, Rafiki & Mjeke)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f9b779d4948a8ac146f656327e86dd84d4180c1e28ed1df2ca536e2e818a63. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T05:07:11Z), 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/ZA56E2526970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde921a314882b972f60083745b403b16c4b5ffc3cea00d7d2cd6a90932853a08. 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/ZA56E2526971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0b6c54a29b675e332617a36a45be4b0fc236b128b0121cc03ced44137c8fb2. 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/ZA56E2526972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83746fb29381bcf4d308ab4bf1dcfb97877af485fd4d4e8982a5620b2eb31c1. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/ZA56E2526973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53922d52ac9392e8b24756615004e75c73efa071135d1cc74db4f74ea41b625d. 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/ZA56E2526974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d19d2835101a18532e28dece87a0a4f5552bf486b6af8536dfc6611ac7bbd9b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ZBRAD2100032.
Ba Xolele (feat. Guyu Payne & Young Stunna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae37833e204917c602e13f022bad1aae948c68c4d1173e2a0788fcc00687444. 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/ZAQ652100690.
Kasi Girls (feat. Dzo 729 & Salaman Mvalo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a6b00fcbb93c4bffb11e2125e07253d87ffb047ab6e5fd1f3efd722323a971. 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/ZA56E2527383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbfad42cbd2c805fa34e3603f8b1b49e9a2da4263a46563c96a2bed58dbdf9a. 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/QZN882409079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523148ac5d5178aab7761df2b0a870dad28bf104badbcec630a2a22e26ae5217. 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/QZN882409080.