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 0xf899b8c5d7b017b54741f5629239caffc298a6688028eaf29d23b8c1781b7ef2. 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/94d7d890-08ee-4f4b-b10d-7fa79a2ee2c8.json and https://artists.proofprofile.net/proofs/artist/94d7d890-08ee-4f4b-b10d-7fa79a2ee2c8.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 0xe9506db2685f5050afffae62715396f8f2a617833cbe3b849c0c4d7ba4e3da38. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QM4TX1567739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51895020be50d73a792eda19dd904e6d9b8e80adc426929b93119ed8f69cf1d2. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:22:29Z), 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/QM4TX1567740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d3d53035979c9c0de9bc246a8dde3f9a653cc7231724fa1a0dd6066564dcc3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM4TX1567743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d890008fa8b5713131abf2df57c8fe7487e852f5c0d7768f69f5f9830d8394. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QM4TX1567745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccf0cffe1e27e5371c9393b3354c6cd105a42ffdb95ad1c5c4f0719501dd283. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM4TX1567746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1d0a12fe0ef4b6c8d07136a998fbf365eb2ef6e71400d0c10a3785a1516adb. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:23:45Z), 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/QM4TX1567747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7042f7415e41277d490e45599427d04f8d08aa4016ba50719617b3d6be61b145. 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/QM4TX1567748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4291ca481f268f1b5dbe4ab7a20dcfb43665297962783202df66344496682a34. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/MXF601000211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf964492f7a27403e7175f8527101322589228c4e243274092506ad296b045179. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/MXF601000214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c8d9767a01cf2de10b9f8492aa09439fb5b62c8e9c3ae30ab8f84684db0cdb. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/MXF601000216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633652b1602c86bbb5a54202aa5d7d70c3cfbcf8d2eac528bf61313539ea24fc. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/MXF601000218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9e40da97b5521b7b1327950bb253280fc1d9a19876c28a6af73c163d4fc6f3. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/MXF601000220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc75c6feb14fe76fc4a044f3f9a3f4385bca69de8433a791e4669d3bbb77413. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/MXF601400278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e78ff2767c01e2ea5c7ea0362f9b099e41aa17ab18f4b08fbd1c9945bd7aa2. 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/MXF601400296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a07581a88c0188b7c762e05e1c8f9261de8795ae08e92ae04d72f888edc7723. 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/MXF601400279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1a9a50a83b61b98f95218b379b104a44dcf158a846ea45fd1d50d51d40ceb7. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:27:31Z), 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/MXF601400282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e6006d792a017a46bf0541abcb421965d3e9f2b61757822c1bc2afd0a85bef. 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/MXF601400291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72174f9c0995338887512e28e75e7003adcd83b810ba1017733d399c17bafb62. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/MXF019500456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f39d125508101096cfab7154323e3b8bd0f782d415ed20f4f4d07ffb8273a4. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:57:02Z), 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/MXF019500457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7d24ae9521d0b97694a49218ea6f11f058d8b87e0e5452e52326ff0ec2a682. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:32:41Z), 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/MXF019500462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80caea461e2d594c4752a04f5ab99fb15827f93ce504d135f046ff595077d74. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/MXF019500469.
El Son del Dolor (Versión Sinfónico [En Vivo])
El Son del Dolor - Versión Sinfónico [En Vivo]
Rock En Tu Idioma Sinfónico, Vol.2 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d743d52854e2c71034f27f8341f9a7e5e2cdb48e409d12d2bda00e6e50958d. 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/MXF011800254.
Sitting on Top of the World (El Rock No Tiene la Culpa) [Versión Sinfónico] ) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1ac5cf8b3226e8ed1b6d46baab82794484cee97623df00d77296096547e118. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MXF011800257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14312e15b4ce4771ee0eae59a6d6642f927a5cf773d5f44f00f576634395ffd. 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/MXF010000189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e725e98052599b43d94a2da3515630a58c2d95cd4ac6ec3077e9d32ecb98df. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/MXF601400311.
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 0x74ad9d6a4233b9ded7fda0229eac56f12b14a999edf9034dc4d21bc441ecccc6. 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/QM6N22385446.