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 0xdc349d53f0dc11b9e54d18f67ca17946ca3ad343cf6c7f422778e079d7df194a. 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/b5e4039a-4d2d-4df2-a89c-e3415e7ea45e.json and https://artists.proofprofile.net/proofs/artist/b5e4039a-4d2d-4df2-a89c-e3415e7ea45e.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 0xd0f4cbeb25269251733298d9804a67076ded1c85ccaf7f41e38217208af1fc46. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IDA170401006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d91ca0742c83e6fc6918e4cde036292ad1b559f2854628db90ee75428d512ce. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/IDA170401009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cabefe3fce3461325ad9ad8d96bbff26e4c482c0e4efe03f34effa42322068c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/IDA170401010.
Agar Kita Tak Terjerumus Ke Jurang Lebih Jauh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab07649848db214554df886fa5c97a37a6f01d13ea16a056427c167687454c9f. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/IDA170601001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af91baed5d6a95f16c10cffe200c5850ee0bddc3d361277b1901a8a22bbea15. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IDA170601004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1d17fe654c25c3d116b324a27f6a97b98a4c3b67ecfcbc751171519ec4d081. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IDA170601005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9356f690e1d7f2d5c706707cf1936d94a051cb248bd3f6561c27765b9aa7a91. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/IDA170901014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99cc02d7e68c8701bb6ef851bb0afaaf95c15f5b5d8007055eaa735a3de1c0d. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/IDA170901017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88328914e9dc7f25e6480514a7459f737e6800dfdf9a4594735f813b8c9dbf7a. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/IDA170901018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7361a4334fd24ba43bc1d43f432ac6c9735d9d5ae99e4f37ceba3bc75421384. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/IDA170982003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1738d1ae6ea2370a6bcafcabbfb313ca94117f0f691e0a405354062664d062. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/IDA170401001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d8a6d511bf1b024439148a5a63f70bef823f6b38ce0ef6691810cee70f9cf3. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/IDA170401004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33de0a71b0f4a1ce7127dfb3d3c08e9e358fa3e52cd16f6b970856f33908a5c7. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/IDA170401005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91ef9fe9d96b9228ade29809b9598dbc6af43a47cfec59fad53a13c090b2b2d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/IDA170401007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c69a5d20ddd6b7329872c98256fd1599ccc6dcccd9d1b1204b67805de8bb581. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/GXBAV2166079.