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 0x4145f2b05c6b8be07d806956570f88d39b1992eb0477bb2c16f2b6e9a3f2b312. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2727177-9c63-4c21-9f75-dbf21353a21d.json and https://artists.proofprofile.net/proofs/artist/b2727177-9c63-4c21-9f75-dbf21353a21d.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 0x940f25eab21d8d6daf70fe0ec84d84891b724a42c32b23438b3bfa1b186af2ba. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZ7R41751428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ff9d97eba359187cdfcf05cd64d12e647df57855d3687460d93e778d625796. 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/QZ7R41751431.
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 0x62accd194b7ce04902cc78f2f0f195e3b0aa56fbb971597da05c0da2429b457b. 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/QZ7R41751303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe2a198c8b32dc29646bd8c84f6099e935d8cccae23479c74eb8ebf8dc00f8b. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZ7R41751304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0369d2d2cd1fa2d19463e78496e2d18aee9478610615b3959f2a0c20bfd257ec. 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/QZ7R41751311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d26d6bd3cd25e53e60d7d4282bd9e21b4cbbd7e7b22091782211613885e25f. 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/QZ7R41751312.
4 Décadas Haciendo Historia y Dejando Huellas (Remasterizado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e880d74e654ffe237190466e17c11273a5633caac03126f6c597c9ccc0ea5a4. 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/USCGJ2171241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87072204ea4161a48ec98ecb44784b662ade49ca3a4bf9ae828703637d071fab. 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/USCGJ2171242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a107174d45e0e27bb00c793996963634a683b2bb032ec4367693e9a587d6201. 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/USCGJ2171243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ef21a26b59b68d0e92e7dbf57ed237069be77da41460e819096a562bc75bf6. 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/USCGJ2171244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dc0ebac12426bd3c08e3a3eca8d58aaa82cb40ce2bf63a4046f9a579814e7d. 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/USCGJ2171246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288b5c9618c596bafb6c06d935fac48cf3b7cd564e39b95db4cb94d664580d83. 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/USCGJ2171247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89f68e0bbfea0c066ac96d1dcdf6dd364b57be0b7eb4d8488ce1cd9d3753696. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USCGJ2171248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9223bb44f8712b52a7e7999cf337f3aa1147ed6cf8ffda2bb9f9dca1b91e04. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USCGJ2171249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a593e64f4e64d84a8c4d68ca6fdc0486007f8736b8c042d1575f090968893f. 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/USCGJ2171250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d4f24a00fe81e33dbd7947001c8d1ae79580e25c86bd030e9e008cfbbcfe80. 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/USCGJ2171255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab4a6a08f28d02333378512bcc31635818088eba7f529fabaf40f846a8966d2. 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/USCGJ2171262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd861aa899e06c47e512d5b28b936124506066d76dd3d0a0574a34c7d9254cb59. 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/USCGJ2171245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd1478d64a4c88859ac8a0ee0daf21335c4a49f1eb88cc4d77ba3ae243b62c2. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USCGJ2171251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32bbf59cf14d4dfc7332dec894a8e156dafce95ec32d276c97f88a43e5ad3e7. 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/USCGJ2171252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd80457f1faddcabf332a2b02f425d6357544dc5ac714b59a1dc8c6179b3537. 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/USCGJ2171253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8ac134bc808a69c9c93d3f1bcb975a4ef3453c7f67d16df48251da6dd824b0. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USCGJ2171254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc642c907ea32462150cc2aa8c206871e10a18aaaa907be38f8848064376e55. 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/QZ7R41751420.
Mix Latino: Muchacha de 15 / Se Que Me Quieres / Puros Deseos de Amar / Bonita y Mentirosa / Todo Se Derrumbó / Pegadita de los Hombres / Ella No Baila Sola / Baion de Madrid / Bamboleo / A C
Popurrí de Éxitos: Princesa / Un Nuevo Amor / Amor de Primavera / Regresaras / Háblame / Recuérdame / Motivos / Somos / Que Difícil / Dile / Pensando en Ti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c2ff7e5112f7244d658f1c4df490eee6a5091ff88e789ec493cf281e89d53e. 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/QMDA72439829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cc0f2aa8ff1ed50aa48444251f8e039718ae4886e141c8a94b57defa381873. 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/QMDA72439831.