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 0x0b5073ed3483d187af021697f04753653316f0598a8ef62a6452cb22e3fd2b7a. 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/fb84f8bd-35ff-4ae7-93c1-d7f3649933c0.json and https://artists.proofprofile.net/proofs/artist/fb84f8bd-35ff-4ae7-93c1-d7f3649933c0.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 0x820d27900eb5260db891a995373644913155ad1b32ee5070324678472ec4438b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CA5KR2327302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6554af7742baa5521100edca05df18064357ed263de5d96691350a10cc986337. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CA5KR2327304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81675f1bc0d42c6e8165aa4146954a9f336a7dc43852799b67d8f9dcf4bf30d7. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/CA5KR2327305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad9ff1fa9071e2e5a1f6a1dac05ff845274dd3f83d1b80e3a60edc1393e946f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/CA5KR2327306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee19c3de37edcf80efe9f88706057cded3f496bd5f658a14af0d93fb12b8402. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/CA5KR2327308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8f73497b35a452a2c1211aafea0baf1fa34cb50170211fc0d044400943ce38. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CA5KR2327313.
Viaje De Canción De Cuna Para Bebés: Serenas Olas Del Océano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf395a9345b1db31b6dc0ca75e7ce1499342a0a1f8c47886ab7de1e100d5368a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/MXA3V2415981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b8d02cb484d6b9e7d8085d346c9439e4b8caa520a45763e719e90d0ddb1634. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:19:18Z), 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/MXA3V2415982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617c46a161253d83ce93214d9d80a3b7c5e5ea53db038d3b121bdd8fbb705653. 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/MXA3V2415983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90639a142f62bfe9689c8fb4d174daeec3d0f530d7e400ae3d24e0034059e2a8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/MXA3V2415984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c92402ce9c7c5475c0974e94d2010c9f180a2d546b73b3bfc46f5f7bd693e0. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:29:12Z), 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/MXA3V2415985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0b898640226291dd331adad19b7935acc7508ac9141a0e25ba305dd51775b7. 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/MXA3V2415986.