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 0xab006390c3ed4e6f336d2dbdc12296d3aa4b82b698d4e2f69feb698225364a51. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e79d4f0-06dc-4d08-beb2-ffec9e2869de.json and https://artists.proofprofile.net/proofs/artist/1e79d4f0-06dc-4d08-beb2-ffec9e2869de.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 0x730e098c9c457a162c03b35ffac55c40c60fbb8d48b58c7db036763b1ab0307f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ARA250700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf943438cc4e44bb25d7739bd8ce187a2d851744360f4dd59586a9c410aba85ed. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ARA250700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a280b824984455e9e06f34a2f8110dfaa1794492c49bd2b54efb333f45d7ec. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ARA250700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5413e8b25c2b82b81e0707c36e0d0b2bea9e1dd83bdcdb2c8c59d89eec7404. 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/ARA250700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc9284d70df19b2c11d316f9c8976314a4a5e291f36967af4b55fe8b5ff30fc. 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/ARA250700047.
Estela Raval Y Los 5 Latinos - Grandes Éxitos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730e098c9c457a162c03b35ffac55c40c60fbb8d48b58c7db036763b1ab0307f. 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/ARA250700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d5ae980e8f5bb64a5b0dd1070b67fb28fffddb11fd2c2a675a20620dccdeaa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ARA250500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5413e8b25c2b82b81e0707c36e0d0b2bea9e1dd83bdcdb2c8c59d89eec7404. 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/ARA250700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b536e4f7772b423078311cef56d706a73820ccb311203c6db0c75ce1fcfd17. 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/ARA250700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f58bcc50026719d90b787408691c3e77ed6b3d27d86ac693bd5300a3e8c08c3. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ARA250700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397f108ab47c15e640edad18b4650e2808f53001a3f0107882605fc7edcf9896. 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/ARA250500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8217df7e703ffd49ec4f2170f629e5ea136e3eaa09d249e00d76f0a440850113. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/ARA250700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201033ebf5f3b4f2d4417ef52b28f586591de7f634ca86790900f15e05909864. 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/ARF050900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c6bf66d26d24d5239b8b068406778d281fde85b21ca3dc891b55b5d3e8b8aa. 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/ARA250700043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa452a8aa26e5a53cd9083a7c231621607b7071257bba9fabefdbc4ac6ea43b90. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ARA250500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a280b824984455e9e06f34a2f8110dfaa1794492c49bd2b54efb333f45d7ec. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/ARA250700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef89d8da7605d3d08c715c30f888e454d03d8d5743ac9b267ad6f3d267b7ecb. 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/ARA250700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f213541e9c4f4da4117775415f299c7ed2a5b0c0d529d232a95d4cff7f5bf33. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/ARA250700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3332af0d9f61b8e73405ea72bb0bf09b18efcb82b45eff713351d6b2275bede4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ARF050900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d75750f21cefc1d2540454c4dec13d310c43487c21752fd38746c347bae4b5. 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/ARA250700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5eb83572675873126855bd9ffe0bbe55169b6753bd16870711a5779c99de19. 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/ARF050500319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0153336a1dd345fb40a85797fd6476417b1dd211da7c76d0e3c815a1a1b30c5e. 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/ARF050900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4feba7a51dfb5178e444137610f35b470ccdd3505d48ed8809618fbc5f559568. 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/ARF050500318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf809029abf1487abf7eb6c362259ed6221d60c357352962af48d68ea4382812. 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/ARF050900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad190cb50b5367c6f090e69b359aaa563e16c4be5614c5953cbe73c514998a8d. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ARF050900022.