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 0x9960f88878d783917b435a4da2de2d4a525610ddb53db80760f60b1e53f07ffb. 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/9d7fab2c-02b4-4903-8f24-58e97c7d1964.json and https://artists.proofprofile.net/proofs/artist/9d7fab2c-02b4-4903-8f24-58e97c7d1964.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Those Unforgettable 90's (Special Version)
Eyes Always From The 80's (Special Version)
From Rock To Tech-Dance (Special Version)
Mi Cariamanga Sentimiento Y Sabor (Special Version)
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 0x3089a18d0e1ea65288603f78329a4539457b54c64c9d52aeb6f06e22c20b4258. 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/QZ8WX2219897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23287727611603ddfb904ea616d670dfdec38af00f54bfc02b9ff1de151236dc. 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/TCAGW2367844.
Desde El Rancho Pura Banda (Special Version)
Leyendas De La Generación XY (Special Version)
Have You Seen The Rain Fall (Tech-House)
Have You Seen The Rain Fall - Tech-House
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9861f74b43e82d5db3575a4e2886e539c31f9221ce2403e9c49da06c70a3cc90. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZMEQ2316089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b74ba6ccb99053f66c9c67bf90b05579e831e55cbd4a2ed5a52e019ad0a7f5c. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/QZYFZ2367065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128d1585d4575717371a7b001fe09391572adbf707686cfc8a9ced90cdb5ff20. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAHL2333588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2731d48d365c4cfdc52bf7ea615fca3293691fe6b7ce19ee1f1855eaafee88b5. 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/QZDA72403773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf96d2f37a63df16544064bdd47ee76710226d32c70e65c9cffbc6162737304e. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZN882556147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e435de15a358a39293b9533aff318fae53b32d353299773745b0c3761c54970. 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/GX3Q92511099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3253bfc8b5f25a21aee54024db70a227fc4853db5b8e21ca955a1820abfe5fa. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZN882592699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79fd9ef7bc95a3ec976668874c746161acc3e76e39dcfa2f591702c6ae48a65. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/TCAJQ2541281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20856ea105362d6f5e4c694ab8f2db973f39978eed0bac46db844b5313269183. 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/TCAKB2524779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4fd7a5cace3cb0dcdb449b5ac125b6cf5fff1bed4f463f6add2c0d4757abee. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QT65Y2532734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b989e3a13b63f0081ffd45714971590ac1a3dcddd3c0fc39dca7a9617abba0. 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/QT3F92522671.
Mejor Me Quedo Con La Culpa y No Con Las Ganas