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 0x382aa593bae5c40bf431efeae50ae347a84996bc9d95ff39d7059ecd9125dd87. Chain 2 (Bitcoin): anchored in block 953621 (2026-06-14T09:42:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20e4a70e-b472-4892-91f6-c887c318173e.json and https://artists.proofprofile.net/proofs/artist/20e4a70e-b472-4892-91f6-c887c318173e.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 0x8c0269889d2c8ca82c0dd69328c4aa988862023157282e5546b864d500ac5532. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:37:42Z), 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/USDXS1904708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48128d9f15d2f26214e8837e9b1dad45fd04e0e138bb989f3d55ffa8d9d137ea. 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/TCADA1729054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0e959f5aeaecec402bb217b0204f1bca9df4d180af7bc97b657da09981c258. 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/TCADA1729117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefcdbbcc33d9075a05fb5bdee573f009c5f0ed55acfbd47cbed5f2201ba1364. 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/TCADA1729199.
Dame Banda (Remix) [feat. R1, Black Point, Lapiz Conciente & Danny Punto Rojo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91db2618797488d4cbf934d971e778f374504a37eb275a6cc7975a4348e5d71b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCADA1729202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91d7625eba2d8bc1ca090ac1c0210ce44213b95cc4306d37ce1c26cc05bdcc0. 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/TCADA1729277.
Living It Up (feat. Esco & Zawezo Del Patio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a0ab25fd63ff2fb32f1efa7bdb64866e22064ee982cf67392759a6f4bf0a94. 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/ES5021300328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac66a255723a660d27ec7e9cbf2b5f85556036482e544f4619c5d97f39c5b31a. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/TCADA1729044.
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
Tocalo, Sientelo, Escupelo (feat. Black Point)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82530627af083913b36c20b8c1c938ca0bfb2cf6e6bc892f133f05858e4f6c59. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/TCADA1729049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79075b82324555bcc75155089bd6c2f6599b5ad98a396052abc4325116558c68. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCADA1729060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c4c5abaabcc9f02d8f25c3061ae9b0d2792f964ea6eec7d09da22b00bc6ca1. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/TCADA1729078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bbf9adaf22501f461e42e419d03c6e1c5f6bf223a9e7062318013e89a20777. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCADA1729156.