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 0x7b720f83a184a92a6302c35a958f35219041e3935f642d59d1c0f2c5937f6f71. 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/7a22ce51-c9b8-4514-b981-b1e75055e00e.json and https://artists.proofprofile.net/proofs/artist/7a22ce51-c9b8-4514-b981-b1e75055e00e.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 0x2642986c5ee7dc15a3cd9c1a2a2b0e1bf212e432cf57e7555788be22ae0b1a6c. 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/USANG2425023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae944a8b6579ff2319965c25dcdd2f18c22860145250a232514b7b56b901029. 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/US3DF2455099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7ff90a909a22b2fac5020f5a4535527314f88e6a6a131ee7f76eda320d8ead. 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/USANG2425042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08ce024ae3bf4df2d96efac7b738da9bb5ef656483d59b4fb5b8d9f382e6b8f. 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/US3DF2482391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7db2370a7247403f95e74f6e68f5795bbc1f68a3428455903e7705c990f5c0. 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/USANG2425047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a0379ed84658b4c3c33b150e54445ec06366769ead8f1af1f02ace4d0ae47e. 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/USANG2425048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8f0967f6f25ad10081fa7491bd15d938352a0111d58b682252c62bc545279f. 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/USANG2425053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd0ab19a94fddeb1645ec2951589d0cd714526a0a470876ce2f449911fc46b6. 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/USANG2425058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde196ccd215078032afc2a7bd4279b3a8e98dab649310e814abebab6caeeb1a. 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/USANG2425066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2642986c5ee7dc15a3cd9c1a2a2b0e1bf212e432cf57e7555788be22ae0b1a6c. 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/USANG2425023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae944a8b6579ff2319965c25dcdd2f18c22860145250a232514b7b56b901029. 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/US3DF2455099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7ff90a909a22b2fac5020f5a4535527314f88e6a6a131ee7f76eda320d8ead. 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/USANG2425042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08ce024ae3bf4df2d96efac7b738da9bb5ef656483d59b4fb5b8d9f382e6b8f. 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/US3DF2482391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7db2370a7247403f95e74f6e68f5795bbc1f68a3428455903e7705c990f5c0. 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/USANG2425047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a0379ed84658b4c3c33b150e54445ec06366769ead8f1af1f02ace4d0ae47e. 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/USANG2425048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8f0967f6f25ad10081fa7491bd15d938352a0111d58b682252c62bc545279f. 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/USANG2425053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd0ab19a94fddeb1645ec2951589d0cd714526a0a470876ce2f449911fc46b6. 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/USANG2425058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde196ccd215078032afc2a7bd4279b3a8e98dab649310e814abebab6caeeb1a. 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/USANG2425066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a43be91a0aba207d4b0a2c9972dfb6581054ec43725b4c0ff571671c7bc0250. 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/US3DF2515871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2324401e059297d641616f12c5bd971a96f8d85cfa437fc88ba16e0f25ef97b1. 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/US3DF2515872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e44f2fdf392562748a7599e922fed3a969b2f23fbec18c2a88edb8b09a8030. 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/US3DF2515873.
Digno Eres Tú (Glorifícate) [feat. Aaron Moses & Karen Espinosa]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b252a35992f73c71b4eb99c9b3263e67c726b554a7d2b215cd6018b8d561fe. 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/QM4TX2258564.
Cómo Te Amamos (feat. Karen Espinosa & Johnny Peña)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5aee8f0d5ca3fc503a728d49b3d91d155e9e0090b27571c11aee416449acdc1. 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/QM4TX2258566.
Yeshua (feat. Karen Espinosa & Johnny Peña)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bc48e88d951b0df4c8ea1462fe986599f15d3d7035638c4885b0fb6b9f9a80. 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/QM4TX2258567.
Hermoso Dios (feat. Edward Rivera & Karen Espinosa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cbf55a6d0c67fdf4a5971f8cec1c8e6b220e2556ed947c4d870f336a28e5a1. 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/QZDA62187749.
Emmanuel (feat. Edward Rivera, Johnny Peña & Karen Espinosa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e10917ed07facbce5c7fdcf084afc0b7fe89c5b0f16b211686b894ee432373. 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/QMFME2148516.
Me Rindo (feat. Karen Espinosa & Christine D'Clario)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136f6eecf195be17eb706f8993ea0dc7da39b89d043a60f31392c92e0daad5da. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMFME2148537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5d63d5728fc96e6f2bbd348d74858ff54a3655c22df8372fd9833c167d2da1. 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/QMDA72183765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58143131780cb0eb7fd764a1abd44e5bbf85d27894af2df1a9e823fa34e57203. 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/QZNJY2141094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803adc317cb82453da69539774c92458a429895a4ba4fe2fd65b7670e04be636. 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/QZNJY2141095.
Me Rindo (feat. Karen Espinosa & Melody Adorno) - Live From New Jersey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e15352db62c71e596cbbabc88dd0d24d534ced6b591c02dc6565efd4cee6d7. 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/QM4TW2255850.