Proyecto Uno (transl. Project One) is a Dominican-American Hip hop/Merengue house group which helped popularize a style of music that blends merengue with techno, dancehall, hip-hop/rap and reggae mus
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 0x1f50927b1e9ba13552f39dea7778121cd5889a2ca36d4e097fa2d9c409a30fea. 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/138155fd-64d7-49c2-8247-74d17de9c42e.json and https://artists.proofprofile.net/proofs/artist/138155fd-64d7-49c2-8247-74d17de9c42e.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 0xc92f9c2bd499a4e2da4b94aca62a7f0b0ca94047a2a1fb23e88c0463cb5ee05c. 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/USA2P2328597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c20721d6d885b504dd7076b253f432df68b121331d6824efff46910a6c5bbd. 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/QMDA71522901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b9c2ab2fa210f7e9caa4b8d2de8894d33c5768e3653532c1ff765dca95c09b. 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/US3Z41600289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe836bb0b181364a44cf1225d84e312d79e5aac9b25d98c59b540084ea9796b86. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US3Z41600291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9f7b609d2f37f773289d1fed5001ae0cc998de415dcfae9f6b2a3415e9b225. 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/US3Z41500515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e18df9d9c51ef05413cfc6ce6f4604783e9b472f04175daac32038d68d3642d. 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/US3Z41500516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c679651d2c72f56b1d680c3d34f21db13394b2a5b12362f6644c1fe5c91e05a. 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/US3Z41500517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc1b9dd55fbc58914dcc67c324eb4e8a3d629b555fb03dcc30a3fe881df8b3a. 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/US3Z41500519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9673d810fd4cc2f485a3c498fda9936ec690108c5612479e803d61e72e2d68d8. 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/US3Z41500522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9aaadcab217649eb16b0090333da0d15493ac2bdcbe4095096f63524bca81e4. 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/US3Z41500523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9393a2e8e3d039bf7dbefa3f6d2e12e8a8d5cba60a7c8a121ef5a70aabe12c9. 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/US3Z41500526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24443c99e56467e5241979d684384bb0dba99eb4ecc646b67b301d5e83ef7b6d. 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/US3Z41500528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25191b91e57afa26f56b676345f5662df28584384dae6e6e113f9614883e5164. 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/US3Z41500530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670d5bb2e5e6f89d4d6fe5acc926e73493ebeff4f60a6eef05cd8357801a57e0. 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/US3Z41500531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe482f7d92811ae941bb60b7fa1976a84b22172cb7fed1ba64cdfe2378e20327c. 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/US3Z41500534.
Latino 45 - Salsa Bachata Merengue Reggaeton (Latin Hits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72b3424385573535b96e1a24e6f2ea7a504b7ec2fd1bc279b23f523f525d06c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ITF251100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46d2c6d3ee6449a1027f47e48c849a2a43d3171d834c002075661fd3a593225. 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/US3Z42400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625e72829b9872958849b07601680e704e30d6a578fc2538dce31578ef37eec8. 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/US3Z42400124.