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 0x67969e235ca56a5e0190504fdab05ad25a20993ca84742adc1eb43b6a6aa93ec. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72384a61-697c-40aa-b4ff-831eadd204cf.json and https://artists.proofprofile.net/proofs/artist/72384a61-697c-40aa-b4ff-831eadd204cf.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 0xb42f1b9ea800d2596038da2247640eded435a825e4c484b48ae0e31092bd3cfb. 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/ES71G1933907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f38a8f74c20f9335faea5001e8ed516ae725074266b05c1850c7003a1bb656. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ES71G2111833.
Ya tengo nostalgia por conversaciones que tuve ayer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62617ee056197c81bba2f83bfa8403d14112ab6d0054be74dc47feb32f19acd2. 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/ES71G2222522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4f11201126142444324a17935becaacb89e3cdb3a1deb93dc287def67550bd. 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/ES71G2214789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b3804d28225baf74157a33d628103c0f4b6e4fec30a3db5beaf726294510e0. 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/ES71G2222523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b17dc8ee08b642b29546dddf29894520569c1c930e485c91aea1fbf1ab55ef. 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/ES71G2217686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc567772de1cda2fb83ffee0953d2064d82ba10fc913a69679b92590f96864e75. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES71G2222526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fcca5dafc3238cb7b96ce66dd6f10a19a4f48f817fff2947940d75f2463a9c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES71G2222527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1174ffe9eb611406be4e9a05e6dda6b4271ef9cd1288c98b2aa1fbe3b19ec4f4. 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/ES71G2222528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2826fdf2d5a17e0ac5588cff72510d9cc778ef144ddc014292b49b29321936. 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/ES71G2222529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e26e0944be881abc0d437a2dd80e7f0260c4fbac4e56f0483deda6f913adb8. 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/ES71G2222530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4f11201126142444324a17935becaacb89e3cdb3a1deb93dc287def67550bd. 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/ES71G2214789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b3804d28225baf74157a33d628103c0f4b6e4fec30a3db5beaf726294510e0. 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/ES71G2222523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc567772de1cda2fb83ffee0953d2064d82ba10fc913a69679b92590f96864e75. 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/ES71G2222526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1174ffe9eb611406be4e9a05e6dda6b4271ef9cd1288c98b2aa1fbe3b19ec4f4. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/ES71G2222528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e26e0944be881abc0d437a2dd80e7f0260c4fbac4e56f0483deda6f913adb8. 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/ES71G2222530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86dcd78dccf0ed4849a284c1d0c41c583a471b92e893a63c262f2be13825b7da. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/ES71G2333666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a55f8d525e1d3d1f3ade88258c1f48fc3195013621f502ea301851ff42b840. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:33:15Z), 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/ES71G2337736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa56f5188e3f8db93e48180f067004e29e65668edf52d10476a5b0b5a15a97c7. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:06:24Z), 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/ES71G2337737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3423d51a2d5bca645d513dbceb00239d764b8b68bffc98b72d85a5da4f1f3cc. 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/ES5021200274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f8870bedec76c5ef008c77c4162e4d93ee82e10d3969759e5ebf8119377084. 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/MXD782302621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0857f639d273642c6d9e374382c41c9c0e280fcac58e4ce2f51e3e739b7495. 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/ES71G2312504.