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 0x16e8cf32fa9ae3552227522718c92607ba69a53925cbb0761e06773e8da0d675. 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/eb730b81-ff0d-42b4-ae3d-d03dd68a502e.json and https://artists.proofprofile.net/proofs/artist/eb730b81-ff0d-42b4-ae3d-d03dd68a502e.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 0x9fbe040b211091f83f7662fed48d7330daa01b272847edf9f11f639e213a3ac5. 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/QM6P42418633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a96cd93655a0a38f9c1733720a0f876454fc9599836539061de731fec0b770. 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/ES5021600378.
Solo Pienso en Ti - Tributo a Víctor Manuel (feat. Dani Martin, Iván Ferreiro, Jorge Drexler, Rozalén & Santi Balmes) - Versión 2022
Solo Pienso en Ti - Tributo a Víctor Manuel (feat. Dani Martin, Iván Ferreiro, Jorge Drexler, Rozalén & Santi Balmes) [Versión 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d573c23e8dd22f8999e87856e4ad80d45463b832234b02ae1f192eb8725129. 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/ES5022201858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe6d4efb44bf40540025b75cd57e057a45f2f5858656697d5b393f0689b0d40. 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/ES6062415701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddab330bcd32ea8178eaea32052d2b1b63c23732bb01f3b3dc3d8f38f12af6f8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES5020900459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddab330bcd32ea8178eaea32052d2b1b63c23732bb01f3b3dc3d8f38f12af6f8. 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/ES5020900459.
Te quiero (feat. Love of Lesbian y Sidonie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede2cb3ed09d9cd744d21a69cf13423fc0a54fff56c115dc107edcf76522e6a6. 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/ES5151502473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddab330bcd32ea8178eaea32052d2b1b63c23732bb01f3b3dc3d8f38f12af6f8. 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/ES5020900459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a93cd6d22971a7b7bb8fd8144cb81c140a78afaa6b1f7159d3bcf72bd4e3bc. 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/ES5021600686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1991f61e22614d8a918b91f3077d877658f4310c18dc4353fd00eb2baa43888. 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/ES5020700222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f93762287f100b4e3549eb467af51b3d51c8c41ac09855da4dafcd3a5b3696. 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/ES5021400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cde2927d7e1d3c05e60ef96cdade4f98bb7cd6967a625fd2ff85b0399d15036. 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/ES5021400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cb736c02534d09cec338ae676887ee39368c77d11706aa07d3b99de263f1dc. 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/ES5021800321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36df901062a73be2ff62fbe37981dc573aa2f1bb7a05d76e658cf3e8aa41cca3. 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/ES5110304566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a96cd93655a0a38f9c1733720a0f876454fc9599836539061de731fec0b770. 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/ES5021600378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbd9416a22e016fcb55d2bf4d8d0c518a023dbaecf59c44c8d655d59efc15ae. 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/ES5020900487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512b0483afe8d9330288000f2f36b165210ac38294927304fc2d7dca46bf6902. 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/ES5021600684.
Sierra y Canada (Historia de Amor Asincronico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb6eb5b574b63abaf604f1e88d79cbd91e3fe93e2579498aba5672a9aa4129a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES5021400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b51fad5e88e7474cc920485d00295c073185467612b1b31866720b1fe885c65. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES5020700228.