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 0x19bd1c7e0d9c1339827bc2e2356369968294668936ac63cd01943aa4f0d4939f. 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/83bfbe48-cab8-42bc-a412-e6f332eec864.json and https://artists.proofprofile.net/proofs/artist/83bfbe48-cab8-42bc-a412-e6f332eec864.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 0x8a546b6482413ddab934a887fa7d6b97d8f6036fc1132507e3b1536f5e8f9467. 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/QZNWZ2471287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6206b7a370d1a3e99a69d7007524c156f99e64e600141877d80d067d4fac7931. 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/QZDA42421708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a47db419713ead3100ac8e1e4dbad542974de20e7a3367bcce6ac9576dfca8e. 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/QZRP52378917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb012b5ac4ce3a8aa688ca32161f9502c4b03e70f42804a23dbf3253cc82c4d60. 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/QZNJX2305963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb2bd5aac96ff82d1b8e21689e4415b510a36f58de57e3acc3826ada24201c1. 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/QZMZ92310509.
Quiero Decirte (Bachata Version) [Cover]
Quiero Decirte (Bachata Version) - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6855ad0d7df7e7427dfa05a8e78b25dabc2729cb9da9bb899f9cd8db314f45dd. 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/QZW9K2238027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a5259d1438cc6843e3a7485d268b30ca803a290959bbe797ba9cf270ebd5fa. 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/QZHZ62241051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab50099b9c772fc23e43e0d59a99761fd48c11814f2c19bf98d0a2684414388. 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/QZGLS2259234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1489e00e627900e4d188bea141fbb792eecad78a487e3eeff502fff456e12c0f. 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/QZTPX2114546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad48f7ae076e21ff01686a2c183f4d91dded55e3a72f56fc46622f54600f770f. 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/QZHZ62190144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9dd0693fce484698a662bc0787152a5c494b0953f97afec2ff38783818cfacd. 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/QZHZ62149481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc66aa0da01abd89fac565427fb70369034070befba3be537a226a9c56caa5b. 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/QZHZ52195689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef1f1a84181879bf308defefc80e88a8223b25ba70892f95bbf6cf0cbac785d. 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/QZHZ42128567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a6600118eb565cf9fdacdaa0b9a4e6b0c9ea6fd8959b86948e9163a0d7c3f1. 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/QZHZ32189876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b40729b2088616af9e88d04258f70f938ca952f5df0643ba86dcec7d22c880b. 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/USDY42095633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb941206d4debef44b782b10ef62625cbd1953e474595c91a4c69518eecb9f3df. 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/SE6I31971132.