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 0x95570236de2d3c3ecc0f2abe9086f673f139fc780a97c33567a7674d47d092e9. 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/c48f75d6-c677-4410-b337-f0639adba6c3.json and https://artists.proofprofile.net/proofs/artist/c48f75d6-c677-4410-b337-f0639adba6c3.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 0x514d92d6af06a5881694c9971b764147c2eaea839ee3c60aca733bad640823e5. 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/ZA56E2101676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad17cfe7e1a0bfcecac933a92d06ea9980080dde65273437ed6d65297e958b6. 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/ZA56E2101677.
Kanje (feat. Shouldbeyuang and Dreamboi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17c55337d863d21b2b32f1a0b6879d5d64327eb4e5b54a6e9d7ad40848381b5. 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/ZA56E2101679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8eb35cba663b1e9b100d8dbd4575e66103130f81ecbcecd804dca59c52b5b78. 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/ZA56E2101683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a7b8f554bf8ecbdc2670102c74e9f417b1915dbceaae4e74d24f0d5b117962. 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/ZA56E2101685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d7953ed60c3df02f1bc7165beb37b230a65296a74edc0d298b65f900cb1ca5. 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/ZA56E2101686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6765e92aeb17fee3e4bfd56644df35088f8f267ca93ad52601174248733a0096. 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/ZA56E2101690.
Love Me (feat. CIZA, Marcus Harvey and Geeloum)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28da236ea7597bf274879225373bb71d42576a7980eb4dd51af17f0f926c3f1d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ZA56E2101678.
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 0xf5f261e55882dc7134cbb2daa4f7a625001fb7759dc98275f009cbb498e30a47. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/ZA56E2101688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adabca275e0fbf10d5008cf50b9e3b784220a97fee91bcdb5bd2f083281e180. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZHNA2033283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ce5c08790bc33a996ac7ee04f5587413dea13f4a0a44f4abf49c641e771d00. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZHNA2033284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bb98a70eea0dbc0ffc52815955d5e41f91f9dae529763aec9ec2fe2d57cbeb. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/QZDA82059186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb7889ae5039fe05154956bbb6a51a63423a92fe32df5a26b093b0465489907. 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/US38Y2413154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2c8fd49fac91b0cacb6edc366f99e24cb8e739b130e9f46f3cf78715311e67. 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/ZA56E2416142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaddd731d495ee116cb14bba329220088f9395cb5ad2f01d480682d66e3a9396. 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/US23A1579520.
ushuni we nkandla (feat. Ice Beats Slide, Shakes & Les, Xduppy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd270ab39a5feee9e087ff49de5010feb0533b102a968f372b7ddd4532e29d396. 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/ZA56E2415596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697849cfa57fbe5f906d323fbb9e3d5f9742de9f9331b96a66e1d61c970ecac6. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ZAA012300220.
YELA (feat. Ice Beats Slide, Shakes & Les)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba57bb303624e4984aa2de90a9c70672318b659533e8202ac9e072c00a7d910. 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/ZA56E2306238.
Petrol (feat. 031 Choppa, Ice Beats Slide & Sbuda Maleather)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92ecc88799b6a9d05423e27142c15150c9b4ee869b327eecd65bf56ae3a56f4. 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/ZAA012300151.
AMA SUPERSTAR (feat. Ice Beats Slide & 2Kultured)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa52eaad22d1c8d67471112c9149566a475f739e82d5b0715462959bfc8e046. 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/ZA56E2302055.
SERIOUS (feat. Sbuda Maleather, Ice Beats Slide & ShakesxLes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5dc2ef9c10c45a38a95f7f4f8977d5326464e59e0f8ef7e6f57723b8f5eb7d. 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/ZA56E2302057.
NGCONO BANG'YEKE (feat. Pcee, Ice Beats Slide & ShakesxLes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de462f472d86143eaab56281ae496b95bb1e0c38ae02b2f9431340b30da06bd. 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/ZA56E2302058.
SERIOUS (feat. Sbuda Maleather, Ice Beats Slide, ShakesxLes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15229ced0644276873e5444ac2aa3aa293e34d2a0cc503f5b18b6d474ab5fc70. 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/ZA56E2200974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22effdc1558a7411fd8995672577392caec652e86813e79aded6d22ca385ba30. 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/ZB1OS2200086.
Dlala Ntwana (feat. Ohp Sage & Ice Beats Slide)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ac07545a09025273d49726214dd10c66ea1b5ff49a809917c7540279e88e64. 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/ZA56E2416613.