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 0x7b60ee39c2d8796ce1a85eecdc808acb03e3bae05476bf2deaa92fc80fe578cc. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73aaca4b-0c65-40d2-9c0e-e32cebd343a0.json and https://artists.proofprofile.net/proofs/artist/73aaca4b-0c65-40d2-9c0e-e32cebd343a0.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 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 0x4bcd8a3521a8b9b23275371cf585ab22cb417118eece12209ab0533fffbd697e. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USCCW1611082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73990f66d18680d7f2e3223a9efe0f69184906df68d00f686e89dda8b1458e1b. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USCCW1611049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1da8b8e71f9e420e15d0c070115f7d444bef5cb0b62414735ebcbb9f972959d. 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/US83Z2149253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b378f0ca89b9eb8ab5fccf2b0751562640dbc9d1299f728ed5989b7b1f8c4a. 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/USCCW1611062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b515786e75ebea238d9830774266fea1ec7549f9737cb896f617d940683c632. 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/USA2P2042353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c436832884aa349bf9eba8ff3301cb442410b944c4976cd5e72bd59283abf41. 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/USCCW1611085.
Obeah Woman - Kiko Navarro Afroterraneo Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21d7ce3f7fdad60218bb338cbd5218df79f8059e01366dda331724528c9d183. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USA2P2046095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43633997c6109981e33e53573517a9a1433ad623bf921020dbc4c8b6d8bf555a. 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/USCCW1611113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2e63541c2a8a7864f6d05a7874d5a3a271a70e61379f5c9070723e5fb3864d. 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/US83Z2149142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21125101b47b487831b84415e75deaabee5b5367ca3de37b8f7674e420280138. 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/US83Z2140678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac88e7d3938559cf3baf8560811bb8f10ec2f1bc3382cbba06ed88b071369a24. 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/USCCW1611107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495005e5bf33f28f0f0d440db898395ef1e561984cac04b98fc1732ce9bb664a. 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/US83Z2130163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c07b554d98b774a5313439d9c6496e67340842f6dbbcc6164b4475ee360d1e6. 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/US83Z2133553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3781a82b0549545cd838875d44b4951ef522d18320f4581f4dfa773ff47b5d5. 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/USCCW1611040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfaf2273538f735265f9e5d593c551c388dd73b1b83d349e94465b4bcb9e901. 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/CA5KR2471263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc9a75edbab0968271b5bbf6c8c02a65e91a330e14a638d8e5e8465306b5c02. 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/QMXZD1100723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ced2b716a62fbac1b74687527d2f09212a4bc9823d63c01168674e7e1ba536. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QMXZD1100722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c0d63bec03fd90e0225d2e4aeda5bcc29f114cd77eba2b54c975a0a25c10ef. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEY472474040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e8b5d3541a663abb8be08c4f9b667496ff49bfae56bc31ce7660d79151017d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEY472474041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e743ee137a7a6be25aa9606644ed1af39d61fc9da42dcafad05de8f909f0cd9. 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/QMXZD1100699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94463292e3ec498e4923a925966b1ecc624d193b37c646af43e990c2fc73241c. 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/DEY472472342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347c57f9d37f4674b48c1ed40ea29f30b7fa30bcc65bb686f4d7f78bffb3bf93. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/DEY472471026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18422c0dda6a7eef268717bb2a9cc3845112c70399dde903a7381980fbc06012. 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/GBKQU2249627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16401dce1fc44852ab5c26ad0ffb0fc2bfbf3ef04de593f8c38d2839f931c7d2. 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/GBKQU2249508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d634c090b6ca298c39173eb667fc313975ed3ee2f87ae169578aed92f46aa46. 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/GBKQU2249628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed23162b38996bbdbae8e3ec6e562fb626c70bd929aab4af1bb7e932f37e143. 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/USCCW1611090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd77c7e392166bd87c0a6914d45b5d07845067a1af616cde94203195eb89963. 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/DEY472377447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde83f7e01dbf830c37b71405376036bc41d0f6ea166eabca9d8fbcd2f6c0b771. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/DEY472377451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153b0dec8371a6b45e0711d7c1e5837153d8a84ec2f3604a21f3ef046b29465b. 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/DEY472377452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99a02b29016fe3769c3cf993bff00424f6fc7bda8fda0e1ff4330c0b8d66833. 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/DEY472377454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb16ee9c397d69d74aea9a7a31fd1855180eaa02d7089bfcc975f78b8935022c. 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/USYBL2400984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa16a768cfcca8f0a5315fce9bb4f7da09d78d8516986c4c9ef3200cc9d4465f. 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/USYBL2400992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347c57f9d37f4674b48c1ed40ea29f30b7fa30bcc65bb686f4d7f78bffb3bf93. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEY472471026.