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 0xc402793f43e4138169627332b003b16395bfef0577c9f83f207ac1f5d58fa603. 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/fe931325-6030-441b-85f6-c82891f996c8.json and https://artists.proofprofile.net/proofs/artist/fe931325-6030-441b-85f6-c82891f996c8.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 0xa731df542286ebb93790cd56f2aaa9839aead52d03f950a531261194cf8bece3. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/GXBAV2342005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df2ac115d0091bb5a5adf1bfc60e2137bc429c814fd491933a7f5ac3f30e146. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GXD7V2448662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67036f22a2ac788f325cfbd9ccd890cca439157e3bed359a2ade1a8208cbffcd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DGA0L2474188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5513fc076335a6d9a4de1131f69bc40bb8cf2d93567db8239e6c82350b0c0252. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/DGA0Q2431461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3de4a42999afa540b2c1006a57dfb9dac42d3c0a4d0c7c0c76c94739323443. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/DGA0Q2431465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0737367cfa4cc72d93b312956684358f855cc354ebfde918a70a62b3d8a0c68d. 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/DGA0Q2431467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf5a8c72b3ce66aa2833278afdfb284390a47b50283fca9a42393100aad0ff5. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/FR10S2541135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa94cda370c4a0eab794b4a3b9b5092b66cf52cf3ce0a1caa80ad6bbb976b47. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/CA5KR2526560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fff2a9b4e1e78e2d704dc4a2dab1957fc14cad866ebf69bf298797a4bf40ebf. 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/FRX202545552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c59ad154ae44faf3470593106d4030d4e10ad8df89991d99aef822045f6db83. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FRX282503405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d70f6eef231025bd3927efdf5460b967f93a273e5ed13c58e43f96afcbdd8a. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/FRX282503406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91897e5b313a60e8bbae2a653fff816cf9481657512b6ae960723ac8333436c. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/AEA3A2503430.
MONTAGEM EGOÍSTICA - Tiktok Version, Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9418e62c3425334a1cb67f8d14f01bef3524dd1f83d5706d672b00bd200b5f50. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FRX282535083.
MONTAGEM EGOÍSTICA - Tiktok Version, Super Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e26228035bdc6c7c6d3e2105ed8998a6952a032eb3b403dbb5400fd9d4cce30. 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/FRX282535084.