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 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 0xd1d8181dfc17c1ae7bae801145a005d569e512f5064ee89f79c10e7e3ff8c8a7. 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/ac1bbc3f-14d5-4864-b9ff-7196aeac82f5.json and https://artists.proofprofile.net/proofs/artist/ac1bbc3f-14d5-4864-b9ff-7196aeac82f5.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 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 0xc07404f4205f9b8198128c38f219442e63af8d4100f931252a94c74a3d406c83. 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/QZHNA2006355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86dcb58e80f4090c386b8ff731d080b3ed13e31b0105fe255f397cfa905afd02. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNJX2237881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2b9a81208111795dbbc4bc74c01e6ece79ae1b8966295a35d4637df3b4b62e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZGLS2212387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e0eb8ee6f333650f04a37a90fc848540c445a395b0af03a0cc6ed2444dd7d0. 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/QZNJX2237882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eac3a4a325d13703ddad66f37ad885c6d4bad51418b1ae9bad605543c71aa35. 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/QZNJX2237883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0fb6578365490f7afc66798e7cfef11ef4c8a72d3e953ae91555698525c09e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZHZ62204081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2bfa303d679230f28ea3f99b2c530c060a646395a2d69203b8c704a36fc5f6. 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/QZNJX2237884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58d33815ce8dc977f94712cd22d6572947938a91021cfa4764d90367479ff34. 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/QZNJX2237885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67140beeb6386061fdce2bfd05ce69337067fc4f123cf2e63460120ef708786. 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/QZNJX2237886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80751b7c3cff38920de63c7525b7e531fc189aadc8978958d7b5a2aec905d13b. 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/QZNJX2237887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2329a4a15963404f4a8cbd8635370373fd6f4578c076f6e7a477c4c1454e638e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZGLM2250186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7546455de7cd487c12a560bd45f5dd7a280cd63089d4b364bac4b33bd04bffd5. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/QZNJX2237888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74aa1b6fe348e809d8887de38556543332d04ef50cedfcf61e98839849be6e94. 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/QZNJX2237889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576af7b376a49cf924eb9afe4f339b330d19cab16716507211502579e337fd47. 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/QZW9N2208608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc3da8d5ea94d8cf5b28b499eef2fb634a2d3485b24fa1e8c6f945c3e8ba8b6. 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/GX3Q92336784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cf4ca0dfa7d52de4d398d404cb4e6b21a8f2ef73ce661d4a35211c58557d0d. 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/QZW9K2235576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fea942497063120ee4f0c04eb5de8e3ca20b6e6a638060f652192912b3aac74. 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/BK4DA2508608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106bc824ea588c2c86d9e30fa2734f3cfddc4aa41b8ac9225abeb4f74e1a9276. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GX3Q92383069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80002bf87118ffb1b8869f014b5910f5283519eb15c4617e35759947d26e29d3. 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/GX3Q92336778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2329a4a15963404f4a8cbd8635370373fd6f4578c076f6e7a477c4c1454e638e. 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/QZGLM2250186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fea942497063120ee4f0c04eb5de8e3ca20b6e6a638060f652192912b3aac74. 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/BK4DA2508608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ff867f384f4b3eee5897e2dcb978a6e51ae964dd286e2f81ad913f2bbc7f15. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BK4DA2510558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f591cf39b330d67efca7208956eaf9b5278badcc534bea474671980cdefa4c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BK4DA2510557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe028bb123d4fc26d9b08197f96cabc6b7ae89a18047bbc3ed2ca67d857b9e4c3. 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/BK4DA2511762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee28c909319959320e9bbc80ceda228090d6846ee243700113177a9161e5560. 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/BK4DA2510559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfd90d145e612819cd90e7d1d50a65701d75eed092ca51d50195b26abc3aa42. 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/BK4DA2451363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c7858b964ec4852842329a40a743ddefa84f003426df44c1528dbc95878249. 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/BK4DA2510846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e892ffff871b8127d170e2652767bd790a4c4ba5ab5b46ba3e21184e3c8c2a0. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BK4DA2437299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0185125ba499fb5a1d7fe725b9c56aef2ff05a4c804c1d4de328a30c4f938ab5. 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/BK4DA2511766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8f385c0ba14e1774ee1b69ced7ecb0a879f21de5da41428969f9877495e022. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZK6P2099542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8a0cd316d91e9a24c25213a04457c066a48543ac02314174fa3d40f2869208. 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/QZK6P2099543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ce696f5cc5c4770e087799b2d39be33d8ef41df9fade11b98f427ad4398a41. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZK6P2099545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e0fbbc73f4a4874609c3a9f7b2b1b4f59f65bf99b8fe95cb1cbf908a077bfd. 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/QZHNB2074284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e5c7c2308473ceaf2fe1265d37b7b566f0994cf2a077115ff557a5991cca93. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZK6P2099546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b70154a4a1f6172204fe255db0a2df268573594bd028aec3790ad21957530c3. 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/QMFME2374077.
Hector La Moda Edición Remix (Remix Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c79a2b39c6b0c8b4a599033ddfb7406541226728dfe502f684b08884fdd1452. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZNWQ2594303.