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 0xa1e8b7835e1cd7c57f2b13319f4bfed6f9f4e0a300efb3707f3e82b58d51a058. 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/aa57deb2-f230-4856-89fa-45c3407ee531.json and https://artists.proofprofile.net/proofs/artist/aa57deb2-f230-4856-89fa-45c3407ee531.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 0xdf2e4c88bc992b5638b0bb3af440b7389f05bdb4a78b0050c97fcf54528799e8. 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/QMFME2197957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aeb3fd8545b8ed701c2ddab97a684e98dfedca30e1cca834f105f27b238a2e4. 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/QMFME2197959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe833430ce9e540ba41c93268fdd5141688f953af7ba036bb1ab44c76475e286c. 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/QMFME2197960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7943836f8da12f21c430383491a6fb4ec2b187cb1bf755ff14937f8a18b0eb. 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/QMFME2197961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd369c015c5d2260fc8ee3c06b3979426376dbbb3bc26a3ec7b7082c4c61e15. 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/QMFME2197963.
Donde Estan (feat. Big Boy, Zion, Franco El Gorila, Farruko, Jalvarez, Arcangel & Luig21+)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d93235900a013e49d3542fe19354d31ef2f0afc5c4361ffaf84506f318f9ea5. 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/QMB6F1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b76ddb92c6586a9607fac22f3d2e1f5c186b08e02f35815fe53e96b32bc2fbe. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QMB6F1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadd9b342f40e12663997cc1f138a2009bd9f0b4e6eedbd9df207f5b35c886d1. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:39:57Z), 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/QMFME2196603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdeee5b1aeea19b96f765fd019589951a160e32b3e342ba05e5197879f6fd54e. 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/TCACN1677226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5834cf8c34c955308c5e0008752c5649ff2db32d71fbe913829fff8a8d66c4b. 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/TCACN1677255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaef328c51bd5ad999fb9105f5d44860d566b2397f3acab83bc9198900d1808. 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/TCACN1677357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113ee0ab11d23f5b68c22735c051195834c300d7972fe3272e370d2262f89b27. 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/TCACN1677375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66d6e67a887734311c8cf6a90439920222fb6ec1f10e845f3aa6538ebc86be7. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCACN1677239.
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 0x4a1e9bdf00214ae8f6575e7bb71eaee65518801d7c3ec4e574c66bef5d9f033b. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/TCACN1677362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4bbf81c7dd69c040568c1f8d33cd341c90bdb0dce10c69039b1852c1cbeb5d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/TCACN1677379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02ea6de77ba589c17f493584404b9b23a758abae7b8b8f229261fd0c39734b3. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/TCACN1677382.
Suelta (feat. Cosculluela, Andy Boy, Nejo, Dalmata, Aldo & Chillin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddc60892eed24bff16200e2f5982b6675867a398f82f4ed4109e048d9d68527. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCACO1672427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbc71a22ebff2435c03d92b8563bbc68cd0aeac689aa1005ef54cd01a5dd4bb. 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/TCACO1672437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71cbdfe4ec0f8ed9201415f741b583f40226a54379114d1cb8ae9a1ec79365d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/TCACO1672439.