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 0xf86bc708291b03be20c3ab7b47ac747293ea9eab1aad11923c8f87a58b018c14. 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/2c44229d-bcb8-448d-9102-5165cc9004eb.json and https://artists.proofprofile.net/proofs/artist/2c44229d-bcb8-448d-9102-5165cc9004eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Suéltate (From Sing 2) (with Sam i & Jarina De Marco feat. Anitta, BIA)
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 0x149a804c7ebdd8b229273e20b8ce676a71db21647ac4006229332946b784b13a. 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/USQ4E2101102.
Suéltate (with Sam i & Jarina De Marco feat. Anitta, BIA) - From Sing 2
Sing 2 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149a804c7ebdd8b229273e20b8ce676a71db21647ac4006229332946b784b13a. 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/USQ4E2101102.
Sing 2 (Original Motion Picture Soundtrack) [Alternate Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149a804c7ebdd8b229273e20b8ce676a71db21647ac4006229332946b784b13a. 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/USQ4E2101102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669f0843ee095c7287fad809dbc396573c793f7fb8b519135ba9d1f40b46e401. 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/QM24S2011593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af3e92c80dc797c90200a05081cf34e8e3a6beb134bf62370b37e02011fc049. 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/QM24S1846710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdab271cbaef80899a30546856dad9a2932a21ff9aef149b61a27db90c215f1a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAEJ1939914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29392d1a2b13f48880cc9f28de0aad968bbc67a89ce5f569d65d619d09da8d57. 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/QM4TX2481005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd904e2338c596ef45aaf6774e133accd9636f07e635c97f6c39ad12bca98bc51. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM24S1927651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dba7d25e974e9b18a84af99046a1468f08429a319ba9b4c96a74ef792c73af4. 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/QM24S1927652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cddc1f0da6083fb89b0c0f41aaa416110a1fc12ad7ba9e187d24696c57d9bf8. 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/QM6N22450242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b3a59cd88e69aa75fe24620eb88f406b8693b220a6dd5fd40e4f649fde8870. 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/QM24S2010099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe07978a1cd216e184b5d4bbf906c97e06514d436ed86e87fd62586a421fea4c. 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/QM24S2002489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03cdf7e464aa1a1450e07bdb9874de97aba0d58b7fa76b3dcb8fdfefda30ceb1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM24S1809873.
Office Christmas Party - Original Motion Picture Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d96702d6ed69bb208c57978e95da4dfc34e8b59c68bd1c1c8051f3a2cf0477. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/USUM71607034.
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 0x9e189785f4bdfdd346c468042d640a99bc05808ab5834c9f1b2d5618c9a79350. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM24S1924651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32fbdb4be8bce8404d0ac489e562316086921c532642138b8b9ff628589eafa. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QM24S2002490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545bb0b123d84de5135b6e702002e51b44846d9d89a7e4dcaf63e75fee2db231. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/QM24S1922325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83db02ebee3ceb09ddebebd90942a70efc3d66a1c902a75118b8f455f928b8a5. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QM24S1834449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5fac1de9d644c6dab5f0577ba870cb9b283cca86de974edb066dd1a9f1d0bc. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QM24S1821539.