1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x618b1ed1560ae95aa9646770ae4f8342feaefb8e02eeb6f7eb9565aee4558ab4. 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/e5b1906b-f784-4bd3-8fed-ccc06a695658.json and https://artists.proofprofile.net/proofs/artist/e5b1906b-f784-4bd3-8fed-ccc06a695658.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 → block OTSBitcoinBlock must exist at that height 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 0xe77538de81932d96ebf6fba526de7768ceed0a58c508b636f1b806f292bf9d95. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PHU010710190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b1939ebd4725ef7a42a096e26ed84470dd43eac00a0fb935b4bb0d35b94802. 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/PHU011515055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc019b3275dd0c14acd696c6d10d5b9e4b6c764eef8a3785494b6c6b395e4443f. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/PHU011615160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcc08f5ee598448c1f552996ca331e3c3085c4e961bd92780b64037380e0798. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/PHU011514771.
Bukas Makalawa (From "Para Sa Broken Hearted)
Bukas Makalawa - From "Para Sa Broken Hearted
Bukas Makalawa (from the movie "Para Sa Broken Hearted")
Bukas Makalawa (Original Soundtrack from the movie "Para Sa Broken Hearted")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80717218e169d210ae7f0d719b3cf158bd62f290d2764cbea0661213e50f88eb. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:29:15Z), 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/PHS031801061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b21b338dd5a2cc10774ef5e2bfbd35e9f68cdae855206f62bd486810602c8b. 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/QM4TW2083135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cac945a247616ba2b43992ccb83e372b545ae8d5fc4236de1eeee653d256c9. 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/QMBZ92065508.
Dalisay (Miss Universe Philippines 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255ddd910a19a2a47c407a7ae6ea8e9ee8cd8859d64b94317c5ee8b4bca6a73c. 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/QM4TX2254917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15872dcdc295b8aa48c90cd9b587623d6b41edb584a4e514774d9201f337fdc9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USA2P2258415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37862a9af15c5d0fe0e49b4e76862a33b1d0b849fabe81148c0a43d6b39624d7. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/USA2P2338982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ef77f6b73af78d3a2aa350a69cc4a9572c6cf30cd1920e1adf7b315779533c. 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/PHV031710067.