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 0xe1ca1f14b27f66c76c200a81a124d12888fb8bfb09bac4e94b925f3b5d6234d7. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6561a83-9429-46f0-8f83-fc6068c12333.json and https://artists.proofprofile.net/proofs/artist/e6561a83-9429-46f0-8f83-fc6068c12333.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 0x14a2ac90f0c6c7af552be8411dc2c83f6adeb21b9f86c0a2f75e103eb178535d. 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/TCAGW2335594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19cccada21c9234a07e313461621f4f4f166739129f1beaad5501675364ce9a. 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/TCAGW2335612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad574ae8cf6c772a1891c3d81c02cfd8b5fa6c3de9b44fef3897e978e032ef8. 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/TCAGW2335617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537161c0e449791b2adee289fa40350de084d5b2fb30bfd38b329a98ef03f60b. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/TCAGW2335622.
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 0x4dd67464766b494aed02a07f55fd8b792301d5464228dcfdede709de944f231d. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/TCAGW2335629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c92b34e46923b12668c97108d265d52308f130f2fe7e95690df9d4dc85dce3. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/TCAGW2335636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83227386b240148ba9de83be0dd4253f572094de3640899c0731b020da2f590f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCAGW2335641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dec7de290b38633dbe3da837d2c2f5cb082804c78db39ff9271fb0b31b104e. 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/TCAGH2267452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d07b66a204a3d6f18bd6711a4eb0db37754c03150df75473cf358626cc886c3. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TCAGH2267433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4233d8a5224eb24f4e03230ed291597531a2a6e21667c7dc344cf817d89557. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/TCAGH2267440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1fa23d17e4ecf6c7763c32cf501d04dcc5f20e84462b924a7ef929d0af5a97. 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/TCAEZ2093932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0056544f8e35f281e012f1c008e3a2218e610ee07569e700a9c6f471885bd8cd. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/QZHN32022331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfadbcd129bee818c41c0287e0ea879f6bcd099618c98607c698d6dd5009f63. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TCAEZ2093954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd6b6df76c2e3aa575d1e95550f4678ea57cd3037bda532b529e767a5733961. 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/QZFYZ1989345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594dc828160d6fe70d2517c4c9c6d065c7f80fc967a1065a51b59f8d090a4451. 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/TCADD1786292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214324d249083ade5408b961c0fe6bbf527754412843b253f7e95f38bae41834. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCADD1786297.
Limelight (feat. Young Noah & Eshon Burgundy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbd2c73b6699c97e990629f3ffb28b5d83091e89ec3415b06ea6dd8b17f6658. 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/TCADD1786312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a759f2557fa409cc432dd1566b8643f18189a642190b6847ad579928c717d14. 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/TCADD1786321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820b52b8e6f7906e924bd069892d90fb94247b06dda7c0054c8f405f84297776. 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/TCADD1786331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cc0646915b32c1a65521730ac11172b08bd44003cb9e462320dd4c55aa44ca. 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/TCADD1786337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69bd018da744ac3a1eb91443d8f18d0a5534663b68f68d68ba18afd8e747b05. 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/TCADD1786295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcf87d984fae14b2be89637fa075a063843bd7e7d43c435ee08f6f06d6e5b2e. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TCADD1786317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2d468c5678e1bf3442c299c7bc217baf408828c81c5f7745c177984a183ef5. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/TCADD1786323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792ac17946b2040be5b5bceda16af5d77eb56a76db3327d44f65dcb37825b259. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/TCADD1786327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28550110d46d93c6b325c757266dcc4c87b7e51c3810586a5f5c463588926594. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/TCADD1786328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923bdec0b49f7b3243d9a54a01b1a8dad0c933ad0c83d5502bee7bde24ffa6f3. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TCADD1786335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ef2ab1e6e75eaa502f997ae026bcf611a98180229deb866c6d82801259419d. 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/QZHN42275071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95501a87e3b4a5d5ac540f2c1917379b3a2859cbb4e95c782586767ad42e43eb. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZHN42275068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0391121ee868483261e3a840fad1035ba38b8e096d4257eef50f373998fc952. 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/TCAFY2125823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdad741301bec3bf7fbae987498aa70557a00e90fdc92eafc50d44690467eb57. 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/TCAFR2147928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f3b3d7f0a2bede759ada9f91b95bb4053254a7f6abab563d77cd1bc96408cf. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCAFI2005126.