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 0x008eda8ee81c0a1c50460768b7a61619b5d8c94e35a8d658411c4fbaf4971330. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9281ca2b-04aa-4891-803d-bae99997d786.json and https://artists.proofprofile.net/proofs/artist/9281ca2b-04aa-4891-803d-bae99997d786.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 0x3354222ac5f774e3cbc12517cc7c47eef97e8116739905d29e93570da8533ab2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USL4Q2549314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1061265f643b227fbfc4f307ce9307c8bdb153109df888a952bacf76f7bb07. 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/USL4Q2590013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52c60a974dc62e689433e9c394a1be73daf78a1b350cde2f5ce38230bd8914d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USL4R2501104.
Baila Conmigo Hasta Que Salga El Solcito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddb543c0ddf3afac9dd7bc8488a7b7ccd25ff8c935c5cad7f03daabc6a6f027. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USL4R2526939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaddc4e1dbf4a505bce4b451ff04b408b590a9ef20c8c6e937c6f3d585182209. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/USL4R2530213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d474b5e9551ed4b2616343524e51a39dd427f12933ee7a103421fc228b054f. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/USL4R2538157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fcebe8fe84bacef370e96ebb650b356be0b185ef6eca4b4911f707c58c44539. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USL4R2539461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87597d8944230614441345e9437c028159a16b7df65f63ce0b338171bf44a4cf. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USL4R2546724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccbc8e42cc618332d49a4aea59c6e4bf7bdf3abdfed5e8b1b8026748b68d2b7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USL4R2584495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee625864a9ec20da8db1190f10eaeaec25ea6d36e373a3afd79c8f728908ddf7. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USL4R2599158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7d0c173e2ebce7dc9c35c78c59e39947b936e769058e96f45aa6b44af0272b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USX9P2500385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf845f4b8ac6443c6af172be4024c2b6696f5a8038f30e631c561eda97c4aa29. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USX9P2520132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8a4c9281c2ed046946e799ad85a10b958456508f3a820c148c657a2bc2343d. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USX9P2520133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4cebd4b7db71c2832667f52ee2dc5a6c91d9a05310c63455ed48d3bff79abf4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USX9P2520134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1923f62d1b176ce5d801a64527768303470832f6b780b041636cad972a4ed48f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USX9P2550862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab297b7305f76bdf189da4358925b8825eb4b2bb2b758fc634aaa16b53891a39. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USX9P2563176.