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 0xe1a85c730762098e1a1ebe6be55ecfee419416a2b52d4c3614a1a1e72f4288fc. 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/84d5d5d4-8b21-4c80-84a0-7af9e04cc963.json and https://artists.proofprofile.net/proofs/artist/84d5d5d4-8b21-4c80-84a0-7af9e04cc963.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 0x4a66900289dd654e18bef2d02cbc3ee92fc3b84cac37a3cb8e429f20cf2c3295. 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/TCABO1386157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28009e62e158d776f73123be1387d76aafc2fefc09d2eef9dbe098525e2fae7e. 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/TCABO1386159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019a44c475f897e6869f1f59883392b9d4ca634575b11dfb830928e769a2f3c6. 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/TCABO1386161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d7245c684229f77dca49ac35337ae5ae5b320cbd1d33525aa14a01ebc27f91. 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/TCABO1386162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a0c2166e21838031ad577d1f87c4cd1c80028802141c7881eea63f83cc0956. 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/TCABO1386164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8588f337bab0b7540ac2ca500e1a3d519fefa21ec42c6a81d3bd7f3d4a21a34. 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/TCABO1386166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02327b49ed4e3e2fd43529d88dc44cea24e83e8757bd46bd2ba2b6151b3f3742. 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/TCABO1386169.
Doa Menghindar Daripada Kufur, Faqir & Azab
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e5973c00d1df0846c24f60d3b4305d230b53516ccc1f2fec2a0910d0858989. 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/TCABO1386172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c42b29d2bf5a3cef5829961f4798031400ba7ec73886485e8ad1fecd76e7cde. 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/TCABO1386173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299b224f47064164f8322e72ebf25cfc79d038dc4d6238179926d1c6f84a6dd1. 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/TCABO1386175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549e337c5d67ce296bbce652f6d1792ccee6207f90b341f70c7ffd772540fbad. 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/TCABO1386177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0dfbff5450bccf8c9d0e493460fa32ee8c5be0dc2ee09f8a7373f5b73b5ba3. 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/TCABO1386178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e31341ff7898675978500371014c9714b76033bd1149b09c2cd6e73103b716. 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/TCABO1386179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fc392d60fad44eb06987db2dcf8f2537171c8d9d048db40669dab14e12ffd1. 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/TCABO1386180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b27a043dd0ff32ed08f3a23790738fda5ef57bd7527edc7c8c05c3bf052e32. 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/TCABO1386182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465f16abf40c58c29e6bb4750aac2406407de1638718640a39ca8672dd280832. 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/TCABO1386183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3800c0acc42a3aa731e4a9d4dd6a808a007f44f498dabd90175f1b023f5b5720. 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/TCABO1386184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf66c647e2485fee6ca827585c0c1606985c8e907da2be85556f00ea44d728be. 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/TCABO1386185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ffa4be79fad3f79db05ef7a6f8354d357fb521eca349a181a87fc49abdfcc6. 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/TCABO1386186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ee0bc3928ccbcb34e00bd7f51adfe7912cf2f5d518056462e60edcb1080448. 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/TCABO1386188.