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 0xb20eda7fa01d2cb088cee4fdaa5d53bd37c5587a052d83fbc77fc22c5a257eec. 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/e956ab94-c598-4bac-a114-e518978ba025.json and https://artists.proofprofile.net/proofs/artist/e956ab94-c598-4bac-a114-e518978ba025.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 0x9927c9c5acf13cdb3f07df3e755fbe1bb48a3c2b86a7a24123c9e95e9e04e29b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US9CY0900090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7c2b3e19ef6db10c7e4c5174ba35cf5fb1cdac4fe04cbbe067975e4f0abdbc. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:31:37Z), 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/US9CY0900091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2336fcc0f1d14937ab5aa5c5a8b76c955f87e3cb4355c3bc06e1ec770059dc13. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:22:09Z), 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/US9CY0900089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c86df4c49b6deb0455ce221471d36c8e10d9341077a78cd47f8020fc57ffb4. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/US9CY1000179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1021bbb670b73b4e3dfa7a909e8131821a4372c9eaa805c001c7bb725b454471. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US9CY1000184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3635da9eb8d0c9247f0f200757c824197fc0b0146fe4d6191d77b7a7c1850ba. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:21:18Z), 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/US9CY1000204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaee091546625a4f67ed214671942991a7691346d2ca7bd0727022496d97cdda. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:51:26Z), 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/US9CY1000212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7345377873942d72b47156b037d85f4066173850d7301c4bd6483c8eb73d13d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:56:09Z), 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/US9CY1000220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05064f37c2f0b2854ac0ebc8311ce1d9184c3f2706fec675a871816508237aa0. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/US9CY1000578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a893d5f60dc60c4f55a8b2f5410f2524713976a74b9617018b1f2f09c7ee93. 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/US9CY1000587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5cf34e21c902c46ee6894d46f72aa84df31f7af8538201e979fe5a1e323475. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/US9CY1000597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e307e0035e58dcac2dfb88c0dec6add0b5b37a71cdec9718f01b196a06f2cfa. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/US9CY1001957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af579e243c9cd04b7ed78cb1bfb7855d528383b73bd2b05a968e48256c487a7. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:24:24Z), 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/US9CY1001961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176893d7fd21be2fa18e4e73917488f41fe9c3d56b280f04293873c4505a4340. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:31:21Z), 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/US9CY1001962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86781c7e9b67d068f94577e44b2abb736181ac8ac68334be4bb50a495c90fadd. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:02:17Z), 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/US9CY1001965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec15c508457254f8b3cc8fa8a87b053b614b954b1e3811d4cc5244edc03bd63. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US9CY1001949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e220d1df76570645addf4949ce74c9bf7b9cc8fa84fbf2b46cbcc67a46fdfa. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:32:21Z), 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/US9CY1001950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeaa62e3dbcc65c9bc86ade6d5712541e1cf7e38ea7be3d456573261bb866fbb. 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/US9CY1001955.
No Guardes Nada para una Ocasión Especial
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c739bc2c62eaf5cf5facba61cb19fd7b7ed269d2456ffdaaec84ba12d4eb16f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:43:29Z), 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/US9CY1700990.