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 0x9171968075bf92a63ee72ddc6a875687cd85ecbc69e48fb324006b2f1556c515. 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/6f75803a-5b6b-4a1d-96d0-379b0e84f37f.json and https://artists.proofprofile.net/proofs/artist/6f75803a-5b6b-4a1d-96d0-379b0e84f37f.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 0xf65c03a2335c517603027b65c8e4fd8e3730a450798cb5834c3dfd9f39fb8505. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/AR6B51600055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e8fc506b1bfaccc9dc19f490c8118c54fadcef603c2841fa4330da5e7b3431. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/AR6B51600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15c874910c730647786c16c82797df0dc4f68d4a862c37ef5ab303c1ee52281. 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/AR6B51700130.
Hace Calor (Sneed & Larsen X Villa Diamante Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f87a859d541f8c71511e13b4dac1a2aacec8113779a4278b3ced441863bb24. 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/AR6B51800257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc070291041aae48eeb08d421a135a4794830783327ed321b6455a175d9596fb. 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/AR6B51800258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc649f76768d24ffc993cd188a84267328fdf1ec6e654f06dee33fc3c3a8ada84. 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/AR6B51800094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98c2f697f19f3c8b42132220de4d5bc1c3f2748ac6be70611c5065405373098. 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/AR6B51800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f49f8c66f1fa01be4ba6dcb98324ed94f2381ad30df90a36e36f4491191702. 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/AR6B51800259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce6170f6e09c089d249e4daa390544ea0e542890ebc6beca20d3c56c56fbca9. 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/AR6B51800260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4adf711a9efab4e29c20c1c4d71201392ccf9e69b3304272a8736b06b43789. 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/AR6B51800261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15c874910c730647786c16c82797df0dc4f68d4a862c37ef5ab303c1ee52281. 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/AR6B51700130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b23ffbbbad4609c1c2f3f772c9964bd8adafd750b5d38de339802aef189e45. 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/AR6B52100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af631677b1266c8586807672c75de665225c4789449474f30159715617d0566. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/AR6B52100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2498adc83dcc694e6a547e4b5e8fcaeebd5db30c68b212c92584dfb185bf4e70. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/AR6B52100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66c6f196190d34aa614de7e0d77abb50962402fd7c28de5f9a228d179c748d4. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/AR6B52100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b23ffbbbad4609c1c2f3f772c9964bd8adafd750b5d38de339802aef189e45. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AR6B52100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896d7e75931ce2f3118ae7ab332efd3f4e2cf6be1c59b95ef74642b8f401d933. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AR6B52100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd34580418dedf04912ec472a29a839c28bbf7d82f52cbd558c3569cae21c8b5. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/AR6B52100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16363acb88cd83706c1d62868bad1b0dfdd2bddbf62a7cd11d11738f23a16ab. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/AR6B52200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbde0beb8c358799772a465e205d20507c7531f5e7c44a6b8822d9bcb9103cbf. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/AR6B52100087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e0ecc93f5db88231a394533a5a98d27eb709e12dc6b9c4e89051b1c1f4f7d7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AR6B52300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e275421da0a991bd7cbbc53fdbe3651eba17fe4888ef2ed3fa85d92c23d626. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/AR6B52300116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c3f75269f21f37014b83b6484156cb6c8c44d6bb1d03ff2e8ad81b991b9181. 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/AR6B52300117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b78e59d0f4a76d152faf0e3eeae133f182c35ffca1b45d0c77093273c1801cf. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/AR6B52300118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bbe1067fdd584de8b3821f85699448e08dad55f4f6c06d9a6d140eb9642a90. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/AR6B52300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bf7c498d185c46c5d68a3549a0cfe5eecf2008ff362243df11c6308cb19df1. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/AR6B52300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b115c2674b01016e7b0ca9f9bdc3fa8766c3fcc51dda929451b7aa30145a6e4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AR6B52300005.
Ya Borré Tu Número del Celular (con BLAIR)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc168f7de5f1eb1887604c9a1ce2005c00214cc7763e2a2d90e8726fd6097e7. 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/MX1722001155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca01dc167ad4ab93ca6d7542123e799c76daa1ae4fcd4dcdd118c187f692caef. 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/MX1721901113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4955017c1b962df30c1ccc76a2cd8d209d8aa3f7c860fc6464880848028d02ac. 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/ARF841800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03770e79461868c0c862ef8c9da7e0b525e141417883dd148c342fa2a072381. 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/AR6B51800264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9dddce69545419d79215bde41a3f20cb22f5d209587c8c8502dc25133f3d4d8. 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/ARF102300008.
Ceremonia: Geiser Revisita Ratones Paranoicos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7df3ff5c9efc3657efbd2a966881df53d6dc35381165e7294701924368138f. 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/AR6B51600175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10803b69dde90bdb793257499e42bd1e5bb32cda23002b79472fa9c8c382b6c2. 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/QZNJV2120648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a1731f6c74acd4aced84d798e8c322a46c2b6c41c19507d36e31d257cb202f. 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/QM6MZ1813783.
Borrando la Línea del Control (Los Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f175c3b6c143137d31930a7970e5ba9cb86553a4ee30d450c98f22c04dc2083. 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/AR6B51600197.