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 0x840d74cdee69490c9b547d4ffbea8b825e63cd43867a9dffd8649e9585197fb1. 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/0ee6d158-7786-45c3-b63f-9f635d4f8f87.json and https://artists.proofprofile.net/proofs/artist/0ee6d158-7786-45c3-b63f-9f635d4f8f87.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 0x9d9333f6a6a881428aeab4f8dcc0d567f23042b45e1f163fd1ac378814dec96d. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZES61829409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdb01f033250fa5ec8a1dd3201115bca167604ba6ad8a02a88422e76d5d7fbb. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZES81823966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a33a672e56ed858e5388c4c26a6bfd816703cc0512271645cda88cd3f8d9230. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZES81823963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c35c9accc6cc84fd4deaea6b33833188e7729da52e628b245f3b11964e813c4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ8LD1966210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26e4eb625d96b98f83c9f181a46fdec26026333cb1562e44165fa70db40516f. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZFZ42035072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16e60a2b35ad3571b6a618e8e955c3c3531bc8f314e56eb37fe29c4814b8baa. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/QM4TW2173824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820b8790d53bcfa9adf9650790f8602eba9f7cbebb6e4b5b909d5aeb15cae78c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMFME2104657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75757319485b8b70e4bde22a5a111771f6bc64696a19c7404a4ef48aa5b0a1e7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES64E2100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8a13f25219061d6e5991e7db68b5a3f512cc62dd87a1bdaaaa7b84e4f92400. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ES65E2100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ea58b54a746cc55256388b02ecbf6e3be960b4df7f82d28b0bb1d041fb94fb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES65E2100074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cea9b555646cd9321b61f52f68e7a402dbb1c44f2cbdd6bb3c62f65d1df6a4. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ES64E2202672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc80f8dc5ce9233e863b7d77ec2a31a61cbafb3c89f3d6444ebf03a2e28ac66. 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/ES64E2202675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc91934b0181c0a203153aa08f69357ed7b2a221b5e314f6155aae26f7df20c5. 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/ES64E2202667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e745dbbabe4ab84cf8d3dcd0a62a65a1b3daaaf1fc12d2612c33fa37d216001. 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/ES64E2202671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5c79d3f043a42451068a332dda20d46be42944e64e6f1c7f73ea5b33f186d8. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/ES64E2202666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc60937f1afb0c5c9f06a24bc48719ab28898043c7c22ac4d29e3dca07c2e98d. 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/ES64E2202521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0dd25ebdec8e28df3a5adfe125e7e83f5bb2139a94999cfb36b16f75a40e574. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ES64E2202907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ccf39a6bd89f5a761d20c37372c43d0d56bd78060dce012e6b126c4bef6bfa. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ES64E2204544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6930ee4f707abd0995e66943f5fe9af21d80d2224af0a88a6cfac10bcc3141. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES64E2301748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac06479033b888d4b8d373df49b28121eee60fab084728eb69d430b8836bbee. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ES64E2301750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72e3cee585fdae102754c4362a5f6e67af2d5c4720b0ff5dea8e4e410d763b6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ES64E2301751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1c421eeceffbdc2680b78838073a675480dc3093a4121da72125d883c6cc78. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ES64E2301746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5041b64ab17622e97dec58062fa54921ea6b2f8b1933c6ede334f616adff37. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ES64E2304139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a27b21e0e88d5d089105c6417aa468ffcf56fb0454395a7b5735ff31d68233. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES64E2487886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023cfc970396e10b52ed356ec77097968ec9e5f4c379216cbdcccb3a0baba2c9. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/ES64E2496258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d3f60a6c30fbe6cd2f26691d545b64c37db7e5ba1ab1c2971dfe95bd2d4eec. 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/ES64E2419078.
Kinky Music Reggae Riddims Vol. 2: Somos Warriors
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc607713e592fb0f0c55c793b91a14575150f893bcff6b40d12b5a1d0fcdffd09. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ES5062305110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a0c3afa74764d150415d63ce13198be34dd85cb0dfee3852b268e04ffdb8ca. 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/ES64E2318868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f94a46517a22e16b1540696d855a519ad4536af48864bee11f2ad788a9be34. 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/ES6102423504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4a7a2f682bc16694baa3c0ab36b40022f2b09ed4da788f427d6fdfaacc5e13. 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/ES64E2300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779229143a3be5fc4f3d8d7588c18c32ae429ffe6bfc77bf821465f43948eff0. 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/ES71G2242833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51136ec15bb61abee2b0df2c2d1c838cdf40152a477441475815062d369964ee. 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/USA2P2244844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9fc6284cd91090c54a9b09f4f76d26134267063b5f132c7f792c0a90830335. 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/ES71G2225328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884a8f927c7258e7e7010b6bac73ddae68c1afb0eafb25751fb7662e2697fd6c. 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/USA2P2233509.