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 0xe95e8c3b6b82f97bd1900ae1cf8f92540562a2e24bc09b2579377e292ac2cc9b. 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/61077d2a-8a31-4f23-a669-81d75ffb18ed.json and https://artists.proofprofile.net/proofs/artist/61077d2a-8a31-4f23-a669-81d75ffb18ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Yakho (feat. Jandas, Mema_Percent, Leerosoul, Mksoul & Shoesmeister)
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 0x338a60c316cc6cd899ad1b54538a0f4544fdf1d92cda56ece038e1266c62ab1e. 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/ZAA012300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994885b107c68e22fa2ccf2f251a244cd59fc26f0f2b0455c0575c0aa212f4ea. 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/ZAA012200521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66da7c8b12a17553f036d9ca07282092115be607ae6a5f3401400a01f8dcd484. 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/ZAC012300636.
Jaiva (feat. F3 Dipapa, Lemaza & BoontleRSA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9161a1497c853ef2016b1c6196af1c52bc25617e1c22109649110642844cdef0. 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/ZAA012200248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9970d702ff9823fdf8e577cc12a38f72921552597d2ebc55a0d9455ff82a08b8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ZAA012300287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37078bf451d8bb5aed400fd0c2ee35f88eff28ab67cd6e5437ee9e91d158a832. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ZAA012300294.
Teabag (feat. Mr. Nation Thingz, Lemaza, Jayden Lanii, Jandas & Star Kay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c42c602600943c0318549a42a85dbb1dc8a6db4fbf4687825cc9a4c0e384f6. 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/ZAA012300242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48969bb3a7e735a1a63a444df472ad7c92ec3d47fef8da6ca7e61a14ba657ad. 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/ZAA012200265.
Mayo (feat. Zan'Ten, Lemaza & Mema_Percent)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9773c4ec96f5fad74c20e943041c6f46586a9067031159dbe7b2445aae3ab2. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/ZAA012200464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db64da052b6b52ecf2f24c7a801729e3717e5c7fd88e4ca8e99cacdc83772ec. 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/SE5752496107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd604912919a56d877727607e53cf63d0fc911aa84b36806275d47cff3f667b8d. 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/ZAA012100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99283660548bf7a5bcacdd3d95e231cd14bc002cc17dd7976f52df4fb769cfe. 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/ZAA012100207.
Macashelana (feat. M.J, Lemaza & Matute Boy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e7979a9bf738fdc99b416d3dea0f4d867b14dba7e2d9957e7bc11df6ee38e6. 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/ZAA012200087.
Mngani (feat. Lemaza, 10x Guluva & Djy Zan SA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd153752e303454487591d11a755ca06386a8ef3b8bb54bf3245c3992cda1c5b9. 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/ZA56E2416587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e01b3f3a5d1b93a69f3b59d558327bf3b62cf396f5a0ffb755103ce43d34a1. 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/ZBO4Z2400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e01b3f3a5d1b93a69f3b59d558327bf3b62cf396f5a0ffb755103ce43d34a1. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ZBO4Z2400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7fbabf7649d3ae72dc6a71edc20e2f8e9f3a1df926ac83bb2fde6b859cd291. 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/ZBAIK2500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52eb5d02369d5391cdec36022b27f1305eb74a46c76a0f214a743fed7ec62e69. 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/QZWFF2346434.