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 0x94088c2cf2d8d357aeafeaa9e929880dbf48b58400241ce9936c88841cdbaad5. 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/699381d5-c818-4aa9-8ab9-c37983f430d5.json and https://artists.proofprofile.net/proofs/artist/699381d5-c818-4aa9-8ab9-c37983f430d5.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 0xef7b1999f23663e94a626b56375801fecec03545d02edcaf291e656eb7b64682. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SEYOK1508365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797a3dc7b10925a751bc369762569f4feb6f6ce2cd67d459be914487f8f797cc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SEYOK1508368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f935e5a8de75609bc79910695035c29bf2b4b4ce1cfb57239bcbff60c641c05. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:56:56Z), 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/SEYOK1508372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118463e751438d4c80425b9d40416ca6758348f1b9246d34b4cfcd1096fdc517. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/SEYOK1508366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931a81c37612d20693460dbe149ecdd5ec395d538e80c4e76dbaf5b510723348. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SEYOK1508370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fabb48e2f817b09d5a3e2f899b8fe8b9141deeff99564261d6f7ae969c5f146. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/PEBQ91719834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703930680d720b739389eaae90ce1f169019e01f79499f5a4913cb751f4462d3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/PEBQ91719838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ca14b857bce5656b7f3abe163445d6ff6589f28b5b9cda2c302d2e9a7aa9f9. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:39:26Z), 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/GBSMU4366058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fdc8f09442e9741fb8e532fc7b66d62b4711e3d9265cd589f6f69fbdc372ab1. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USCGH1870837.
SOLO SOL VEO - Ep. 1: Revelación de los delfines
¡VACÁCIONE Z! - Ep. 3: La combinación más fuerte de este mundo (Latino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfb6c3e459454cc46c0225179ba91b51873e2607e52c3b11b93e21e479b1000. 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/SE6HN1957758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97e75eac97053ca8e10087d1fefcf5c980ade4c04c366dd855d3f914c113c3b. 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/SE5BU2090614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d37d2cadd7dbf268384ad1f4aec83dc442e3d0f8870d85ab34c922558627d6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SE5752077401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7675c43c5a1c106502e1a85d1161bd99074060fec78024061e5149dac17bc0e2. 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/SE5752077377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fdc8f09442e9741fb8e532fc7b66d62b4711e3d9265cd589f6f69fbdc372ab1. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USCGH1870837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fc2169f8d6ed622d53f412c03f214557f3d37110233d59910bfecd6774f47b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:36:22Z), 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/ES71G2134538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c38499088a4434ca3dfad31cc5dbd51a7d77822952a14a2860f0e28f00aa2df. 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/ES71G2209321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56033fc903cc59457ae68b9e47b356b068584f08dcc561cb79bdcb69844cfff. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ES71G2209320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e3d9259b53948b12bdeddf2b241482aa3f3a9493c7d4b0175bbf13ea106222. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ES71G2211305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69d58eac144dee920c5660bbf445a54c0877e04bc8325cdb612eb81d44e295b. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/ES71G2211306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736795176e5c186e161d6fa64f42cec0e3ed4e55be3b48ea70ba695149d87981. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ES71G2249291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a60714560ce26e42d2f5c23428ac279f49ffd0b1ae2b1bbddeb808c047a7a58. 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/ES71G2313482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9767bd279ea0f02c05ae6337d811fcb3cb3cb9455bf378fabdeb5a55b25c30. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/ES71G2333282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6122800ca2b274f340936e5dc82c564968dc442ed7d76b6cf6a16ffe1f5374c4. 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/ES71G2337245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd0c8014f3cd020674ddc68daa17df38f561a587067ab5d5b47afa71ac03014. 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/ES71G2400354.