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 0x1e18189e2b24b37e7f9c838639e2c1d76cc2a81c032fdd1c374f31d37060b4fb. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc9c0bec-55de-4d1b-baa1-c50756e66b0b.json and https://artists.proofprofile.net/proofs/artist/dc9c0bec-55de-4d1b-baa1-c50756e66b0b.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 0xac61931168a00c2d553787292c5c75748d8bf8893616e237cb516b525690fe4f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAAW1157294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb496011cfb1b075fbbcc091122cd08960ad26072311ee0b12acf8ff2aa5901f8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAAW1157296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2126a1e6037cf4779222bf06228aaca6a7ea94f0c18a541e89ac9c1d65f70d57. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAAW1157298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15447618b54b222f0f92464232c4387ed27215aefa15e29cbd6ceeba4471b3ad. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCAAW1157300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673f4a6bf27c9d0b395fa4f88c40aee0c10a31092f827641478f4d659a51c80c. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/TCAAW1157304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a83cd06289aafc74c402fa6db272bd8a34b1144458dd54aa1891a96579ccfe. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCAAW1157306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57160d4af229d62706ece067549caf55627f57e6b9b6adbc709bea356b7386c3. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAAW1157308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1162c7e95925eb93922bf5da8083335425c3f9d60c9b43a71edabfb5e28e2342. 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/TCAAW1157311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ee2b013216db86f3e39db1e90f1286abff20b162c65785e116e987f6de20da. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:48:16Z), 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/TCAAW1157312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71baf78160ea11cc563b9b47a40e4f56161d4bd1b1288e9e1c19b9b27353694. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:34:52Z), 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/TCAAW1157325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc96048d6e2c5ffb6f67604a6442d44b71a7d384f4037442f941142bad7ffbe. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TCAAW1157326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2c1029c2dbcf214c4113e19ef8e10c7df6ed33d06e4f06fd52ec9c57c73ffb. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TCAAW1157334.
MI Dios (Sesión Acústica) [feat. Kim Richards]
Mi Dios (Sesión Acústica) [feat. Kim Richards]
Nada Imposible [feat. Lorena Ríos] (Sesión acústica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47f58cd20ad1c796c8c002728eb1030e3c4f5a0133b24b42addcd2017533a3a. 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/QZHN31943985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb576e59be7aa9e619e9f636e39413cc48964ea9b72da90fc0cc6db581fd55dff. 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/QZHN31943988.
Tu Has Sido Fiel (Sesión Acústica) [feat. Abisai Ahumada]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d241e55241fd693435a185ae552b4e00c5eda63357a925e6c5a69ad2d62da1. 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/QZHN31943989.
Nada Imposible (Sesión Acústica) [feat. Lorena Ríos]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ba669c379b0e5393177c2f2bc5516211692deb5f5c7c39aebe68e14c3820bb. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/QZHN31943986.
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
Bendíceme (Sesión Acústica) [feat. Lupo Vidal]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ce6adaa99d6bf1e6678a1561f2236eb648aa180d32408cd725ced726438020. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QZHN31943987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa59f66c0f38397d36a071f5e325f430c2c37a1178dcd7f4581128255dca29a. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZHN31943990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267062f8a5791a03ae906d5b7a3d10db79f222fc28d1cdc64514d440071c930e. 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/QZHN31943991.