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 0xdad7c30655d25abaf85857d733ff63255db01fb46b466394dcf5911e0f21d470. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43ce3677-36b7-4be0-a9e6-ee8a6a492217.json and https://artists.proofprofile.net/proofs/artist/43ce3677-36b7-4be0-a9e6-ee8a6a492217.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 0x4b700b29c3833de89fb5cec8c2b74cedb0df7b91d2279b0aa8efb9a56006485e. 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/ITAY32100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7215667d43ea8179b140b6cf9712f7221a73bbbfe6dbb454f2bae9d7d29f4026. 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/ITAY32100129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928c91702ec6aeaded014d0cfc387dd40bf7c08067dae1858455cc64100c2b23. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITAY32100156.
Tributo a Miguel Garji Feat Malin Norbeck - Jerry K Edit Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bff412a64f25596e36b027d9b9fea49e08f02087770838534e29cb03c490d5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITAY32100135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f2b43e8d75f41a6d5ffa7a5a1f29fdb1fde904ce2e975bf9c86211675c3472. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITAY32100160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63511b0bef6f2bb1bee35e14d72dfb0eaea10e5303084703ee8da4b4060f1f8b. 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/ITAY32100152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2272a51cd8e79f5088c0bf1cb24c554db67996655affba24e8b3228558ed4765. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITAY32100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ebe2d9726ca3e5406e847ea2137833eedb4fde6233a380781aeb35924c05e4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITAY32100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4328a890ecc6162c7927d63b9fc0a26c4bf4ee561eb7c1118af054c42f7e01cb. 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/ITAY32100122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedadb406111c9eecce71f7755eabc33abccba741ac172be061fcea7faaa37caa. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/ITAY32100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5f9ee31a5c0b59aa87dabdd7a73ce384492f794775b64d287be172d1eaad84. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITAY32100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66470a621070d4ecdcb51d7c4a2165e40152484c6533c4f84635f5439fe85d19. 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/ITAY32100116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b238bc8b486a9948e7ae1c6b3bdd082d5f3f450676175c487ae4bd1ece63c36. 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/ITAY32100110.
Dreaming a Reality - Bruno Be Edit Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebaffa06c6e8eca8ad7ffe93701457b31caf8d3a2aa23638e65f39b5a019885e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITAY32100143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fa4852a1c98cbaa2d85187d6e71bfb30fa23ad3785b81d3626e40082bca7d6. 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/ITAY32100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d4e666d91c55a8094215a164e2914eae8ad886aba02fe30d21f696b4f7d3d5. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/ITAY32100141.
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 0x992789bc6b42e69f85214fbfdaf34ae97a74e8ce5b5af7f46a5975d5b94d8000. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ITAY32100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06c6679ab7ab371b7b0d1ae29fff5aea64df26954fe62e51a14b01c3a522158. 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/ITAY32100161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d6acbe585e96b71ab9319ffd8a11df5f06b45c38bff75b0870cb413a5036ff. 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/ITAY32100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b471276bb8ab8e933d376870477b4375142b5a04485810bf5013efbef70a5f0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITAY32100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384b4303793cda838617a66b2dc1f08d8df736a69a1e762180260f62c7b1d9a3. 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/ITAY32100149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474f48ee9bfe4e3b129b4a505157365090548c96ec617f73907d51561f517af3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITAY32100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9003e4f1a6386585299bdb7ff3a81724c58c7b073c9c1c9ec869d5c8cb1c6a. 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/ITAY32100155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae190fe75817a16f444281f2c6ed2b38317443847c2ad039ca2c3a326b19a01b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITAY32100134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedccf8504aba186673bde754c3b1c826f663b930d2d11faceceaeed43f1d8a4e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITAY32100119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b6c566d8d7819e1d6dd1eb3081b6a2a3321975b5a8e67a0dacbdb94c73996e. 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/ITAY32100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf785f1ef85bf48ad01701424fbf9d4dd30b86a163dbff60738ae206fbd7477b4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITAY32100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623b595f04341e5ab8bdbfe08bf765451db46f221ef73bbc5e746349445c3429. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITAY32100157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647f7dad62ffde11288b0030db10831105464f128343c922373de4d951cb339f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITAY32100147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4d14aa7ca83fa915d1250a4f892a411aac431804627e6dd5e89c7ad791359e. 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/ITAY32100111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacdef0e290963a9248f71565f81d127fb9c7eb392ae738368acee318aefdd4f. 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/ITAY32100144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eeedd9cf91832af137b718350445c1d31757babaaa2c43fa183cc0a3968e9ea. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITAY32100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3d2df386df31c6028d988e340adc01d9a5a38b0ee9586a59d9f9289c9d640e. 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/ITAY32100117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782675e5960cbb3fc2b462ee25adc34054b4dd1d579f5f18a42d249e2e57acb8. 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/ITAY32100123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674822e2c46553d9d674bbebb38f267286a049cd5bc279d1d9da4c423bb5b2f6. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ITAY32100139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1623b1dc0db255b75706d8082dc34014a6275348f6af8ea2cb10ce6baa67593b. 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/FR2X41774136.