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 0x6431104d9f7940125aa3a64006034c50fc00171822a139ebed57c71472718e1e. 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/5db42df7-6dd8-4990-9569-12ffbbabd91e.json and https://artists.proofprofile.net/proofs/artist/5db42df7-6dd8-4990-9569-12ffbbabd91e.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 0xd3c5cf1382b022d3271476f36309f8034d6498e5a5f08e13496cb0b4ce3bd456. 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/QM6DC1875603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ff317c44f1b8c9b9c4cdf09bfae967393eb8294236c8acbdcd281c7cc06699. 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/QM6DC1875604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d3d9878987bd58b7d1a6a66c2f56976df6c3d3a12506b91c45217f2ba5cc7b. 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/QM6DC1875607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7884beb0c7b074e70a7c68e54d2896968c794b92e4b1aceb351143cd71e4f14. 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/QM6DC1875608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f2bc0d09371eb3647ecdd10d11237a18185c4fb0ce3c5182093fb179da3512. 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/QM6DC1875609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80922c889c82678696907e1446c8252ae9adc885c98de8d7d5ba4fa1be5e3456. 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/QM6DC1875611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85ef60eb52ab9d76c4416b145f3f4f4c628170145a41b0f7a8ca7e2428ca6e0. 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/FRX991529130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53845f2279108f748daa79f08878ad47c57967db7f95967ed645a8caebd1bd08. 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/FRX991529131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be6717c17d8edc81ac3859a00a2fd99f0ad18e51f93c8b3977485195a54d0cb. 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/FRX991529133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918ed99ad8486b5729dfc56ac429557750915fbb92c5d870559eb3cafc70c921. 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/FRX991529134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac14222d6c7b903a283390480ad36dd9ceb566e97bdf243d0ef7b6e4cd18f50b. 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/FRX991529142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2d466eb3abbff354f986b18a88a95ddc6efc0c98382484c510dddc7638e059. 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/FRX991529143.
18 Kilates de Oro Con El Ultimo Pilar de La Musica Norteña
El rey del norte Mundo Miranda Vol. 1, con su gran éxito El Cisne
El Rey del Norte Mundo Miranda Vol. 2 con su gran éxito El cisne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0985f074905e2d4bcca27936bc7aeb1d0b04d670c47cccd38be57e23dc54dbe4. 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/QZDQH1806626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54c973ef9f10a5a9c31838e63968bf7109c89cd2be2182101373489430fc74c. 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/QZDQH1802948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038c685ceba9e5a96e70d2f9993342a7e026bb390a0217eb69b2c340a68f714c. 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/QZDQH1802952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3f84728c2b2731e69b4c74981af8d4c1dd0efd245ef376dc2dec03f6b43df4. 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/US7VG1819675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad98e69e82ffd5b4c0142415cbe8c7a6d93a671e5081a2f934caa60a651eb332. 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/US7VG1819676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f27400b846e4dc6ebf04b08b78cfbad7a64fd5029c5b755b9e43dfa7d1010f. 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/US7VG1819677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced38e1de1a875d43df4f1cba55012bd170195bd093e5fbd996553d4f9e9a9ee. 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/US7VG1819678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da57c25fde6f214621bde1d13bed3c013268766250c24a5c678ae9636176182. 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/US7VG1819679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda644c664b44db71b1fdfc1fc09bcf6670cd2a1066da17187b9c491a6af6c52c. 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/US7VG1819682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073c3a9274279f9d4149a00d5633801fb090d7dde95110c1bb72bee68fee3d16. 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/US7VG1819683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f12105294cc538def09b218007c52135a6affdcce96a26eb6ff51407be99bb. 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/QM6DC1876167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311341cda450265898d7d61583aa54cab385a1ca6f5813ec6f76d8d05c26a069. 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/QM6DC1876174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f760236f8f9017a1ff2cfa770d8752f75441f1482050a0ac808562900eab907. 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/QM6DC1876175.
La Cantinera, No Vuelvo Amar, Te Navarrete Romero (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8983a8e0472b2c24c3c9aa6870947a0aa197d8b6b4f5bd8c9102fa57394b18. 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/QM6DC1694931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeff29b70a4bab2d0f0ca4ad5edcee49f1dbaa72a2f49e11ca5fc3bc006deb5d. 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/QM6DC1694933.