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 0x92ce60b118baa9bd8804eaef3a8a33f7a4342c524edddad54ec2032f6a235c95. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61fcebb7-afc0-4d9b-92eb-16c7b021ead1.json and https://artists.proofprofile.net/proofs/artist/61fcebb7-afc0-4d9b-92eb-16c7b021ead1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
SI PALI AT PASU (Mga Tropang Mahilig Magpasuyo at Magpalibre)
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 0x2549b983b2870c4a222fae8721f74e3447935d24303ea64b96746d71707db68b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QT6E72592587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b9187d1bcd5d8810d1d663706131946760ea797002fda15c1941c7a912aed1. 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/QT6E72592588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed359e8a1e90d20dde57e5c1ad29b9a72d7f05a151bae8c4ecb98faa3ecd5a31. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QT6E72592590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ad17530a8bee58501961f02af90de7c1da39e2c1d42be147dbf9cefe3e5c4a. 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/QT6E92535226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a1935c020dca5f3b3715ed6d285fd9926541062402def3f73a35d469a44f4e. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QT6E92535227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1b2b3b1ac0409f8958748e50a4b377f66792ee13d86c5da07280b4ab6cf542. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QT6E92535229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169e50b81b5725268508ffabe203fce6c9bdf10717f9f2d79c7c571b076fa9a9. 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/QT6E92535231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e235a616b44b7e556fddbf0e60e2c948a2b95a272292abcedbf800580eb980. 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/QT6E92535234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef7e1c82c7e0f04ba36f5d07fc6872d3fffe3e672069dcea3f2664bd32420b5. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/QT6E92591002.
Ghost Project: Walang Nakita, Bilyon Ang Kinuha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cd05b6d5ff052d1a9bea473cc89278f853ff59017b22afe06b5946dc953500. 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/QT6E92591003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c08fe571b24d9a4c96d690c13add7a43242891cde0854be6176d00912660f9. 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/QT6E92591004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631d3aebc1e3aafb16c016c4b9435377509fa21d3facbfd2fa7f8f1f3ce90080. 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/QT6E92591005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467771c43d2fbc39866fe2ab2e0900427dfc9f443f1b171ac6724d319330de40. 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/QT6E92591006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4e8282a9589b6e5844a0aa01e939df51b5944e5f1632eb6f5fa884f689af3f. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QT6E92591010.
L.D.R. (LOVE, DITO sa abroad ako ay may RESERVE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c147fca1478fea1d5c8bb9562f143adb176ddc02186e20ed660ca1235e6e091. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QT6EA2500872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49134b404325934c0399dfcfd5ab097a59906db33e78c8e2d60f0d55c9a60531. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QT6EA2500875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cf35397fa8a77f94234162b54fb9d47cc35d6e4f82a0e8600dec211ac4293f. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T10:27:46Z), 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/QT6EA2500876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7a91325cb298ab67a26cb91173191016c304894841f6b7347e351d61158aaf. 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/QT6EA2500877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8d140257a6ea8b99053aec470ebf3d554c34c89358656cd50df3e2fa048a9b. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QT6EA2500878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083a5ced7ba675b3d89fb4b34522efccb42885582ebc2237528baf0ddec744f9. 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/QT6EA2500879.
JAPAN! JAPAN! (Sagot Sa Kahirapan, Pero Bakit Uso Ang Kabitan??!)