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 0xc65ae1191c4414152aa1eb09d5572b7fb1e0bca4935da6fd0957680fb10bfea3. 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/eee8444d-433e-4350-a787-da3721916a2a.json and https://artists.proofprofile.net/proofs/artist/eee8444d-433e-4350-a787-da3721916a2a.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 0xc7552e64940901620baf21efa8dd7f7e27d57cdb122d47ce9b14e18942c8a051. 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/EGWKS2373401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fee267ab4487b894f3684b41d08dc3d77f22e96579cd94e7985f7796a0f5df2. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FRX872364758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa91e0c1b5de2e05b82a2208bc071df2a1a69f7ecf4cc2bb41e61db13293f5bc. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/EGWKS2385901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab345457ffa2fee9936e45a8c85cb8cf642d0e3c727b74620eef6188248e187. 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/EGWKS2370501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab345457ffa2fee9936e45a8c85cb8cf642d0e3c727b74620eef6188248e187. 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/EGWKS2370501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8602a30c13885f9c9dfaf786e6a6bbf8a737fd4f6303a80e0d7e6f9746e7900a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/EGWKS2358101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8602a30c13885f9c9dfaf786e6a6bbf8a737fd4f6303a80e0d7e6f9746e7900a. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/EGWKS2358101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1e63f4098dfddeae1aea6b4286e0711569cd52075a8d58bc1d72648c796c08. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRX452325480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fee267ab4487b894f3684b41d08dc3d77f22e96579cd94e7985f7796a0f5df2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FRX872364758.
كلها بقا ليها اخصام (عليا الطلاق كله بيكدب)
كلها بقا ليها اخصام - عليا الطلاق كله بيكدب
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaac10c6dbee42e014c6d63fff2ac3f04fcf9e89619d866b5ea9928e5bad56fa. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/DGA072375159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d01171ae9244e993ef6c295711cde3a111d74cd82897c9f4ecbcf6f87b5cf7. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/EGWKS2393601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41331c51818f046fc7e0d68ba9b91b8777eafd6e891e7c0adda6f833de6ac0a. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/EGWKS2316901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d5a94ade2dd1365bb962bf164f71b7eac1c61d58a8fd0c1a975e761de2685f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/AEA142403178.