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 0xd0c29de08695985641680aa13bfc16a53f0c8f39e77c9ef55a5ca8a8955be2a0. 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/cccba168-c735-494a-b92a-8cfcbb404cde.json and https://artists.proofprofile.net/proofs/artist/cccba168-c735-494a-b92a-8cfcbb404cde.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Que Haríamos Los Viernes (Versión Bachata)
Que Haríamos Los Viernes - Versión Bachata
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 0x2cdabcfdf4dbc134fbac7e7fb6959bc4444cbcfe4ac1d13cee80d9f481894569. 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/BK4DA2326453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999f122fccf52551c9b5eb288972bdf8ee1674c5059467295ac6bb1446bfe5fe. 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/QZFYZ2448176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eefb513108e3a10f948ef857229316f9184e3932c08971cdc90fa0094107269. 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/QZMEM2374852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f72212a4c58f2222d2a91886ce1542849f94a75a1afb8d7a97c8698a5e1e0b9. 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/QZGWX2162184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06e41ee37bbf28fa19e977f2eedef94dfcb33412f125805c19d42991d6b3fdd. 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/QZGWX2162185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0fecfc06f501e89195d5a3868277171c77e4b592717550d53f0a96ab0b0b6c. 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/QZGWX2162186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24924dc96817bee6563a989de6ef36d679ca02a4510314e3e445d9589efa4dcc. 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/QZGWX2162187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4d96b56d1aefd261ffdd3771084188dae7beec868c5415f66ab2251532dcf2. 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/QZGWX2162188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7cecab37f56d18a3eb620a1ea041dcdffccb677c1d8fe6026814c34cb57228. 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/QZGWX2162189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b40522152659ea010df82c4ea9611b2120ea7d959e63b6ff36b08940808634. 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/QZGWX2162190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868ab0fb206cfb98d494566596b8214bec517003d762da0a392f666de59eab17. 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/QZGWX2162191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a303548717b8ff77532343f43bd396ce15a2be7517b5955a7d37078b2e1aa67. 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/QZGWX2162192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8158d6279a374fb6371e1d4736682e7f65f590d5c12548ea60d89f9df575ccbc. 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/QZGWX2162193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851d9aae12113d76ff6e7f1ef31b19248dd9730290bb5d60652bbdff0f9d19ae. 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/QZGWX2162194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343a387d6f5829d43df28e6ba83639d17a2dbc4b0828df24f7be75d7ea06a28e. 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/ITDO82000672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4a01044445bcf569a3020d7635fb9b3bb1a2db54cc90dad94713491534c9e8. 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/QZGWX2162195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be92e5dfa2743c5873e81068be03cd75a5088dcbd893ae9384e27c3a35b7e87. 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/QZGWW2133824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe85780992b213aece40e5d11910492138a4ee92a659bfa3eb5e7b5944c0a75c. 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/TCAFH2037574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f32a3835aa46e161a66747708a2134de14d429cb01bd0be8bab2ae0e2e802b2. 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/DGA0R2307388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b69e47d0ecd9f044b15851b88fbb4aa44d5b8a85315feb2b54471d02e177c71. 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/QZNJW2184635.