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 0xa91ce27524aa95e723b796c0b33906d9cbcd16ab28515ec8f846997aab57f4d6. 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/f201d33e-c29c-4e5a-a705-460cb116826a.json and https://artists.proofprofile.net/proofs/artist/f201d33e-c29c-4e5a-a705-460cb116826a.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 0xc2f1f337a5f0949df81ce979510e0a6aaf54cb4324329f3743fa179e45fc5f9e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEXM82101769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d4f72108802b510b9aacb6a7d4a4a69e160d9fd29302eaba0acfb95244495c. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/DEXM82101770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9996ec6552e2b004c66571e032b6b744ada97ff302c4f8c1604f9959e1e50b. 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/DEXM82101772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2d1647862ba8f15dc3a1fce889b1d2fbdc839287fb79862064ba730dc2493a. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/DEXM82101449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b2dbefc6f7d2e0a7383b32741ace706b06aee1bd12297cc7d2308731edb5af. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEXM82102051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c21b069ae773bf6dfbab887b71c7749f23a57c611233afb7f602ee61a189ade. 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/DEXM82101583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532f4774cfdb852039fb927309023fe513b0035782fc0fd54b8001fd7f349418. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEXM82107642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a45b216903c0b46d6a4e5a646d2778d96501ae039146de8a23cbe3cffaca94. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEXM82106174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9b00facb4ac7311013979aa3667de3999d7db39fa622b0c2e1c907f6da2fcd. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/DEXM82100321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e82bbd295550d9d72d98213d76e9f258035068c3b694a1ec79b62ce37f06cb. 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/US3DF2107686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b0115fdc3dfbdd1c27a59891f1d073f0a58fcf6a94d252e32a30b373c76ca9. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/US3DF2107690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bb33a3907aa47b59d99af6851cd61c65c9103162a772173a6d5a9fa94c09e5. 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/FR96X2583352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660a3d7296663d126ce1f0a2fd3896c3bd86bca5b67f8e324abbc29ddd699c96. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/DGA052209211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f78d61b6839752f85ba656d4666715a4436f0e3c7f4fa26eb15dc667995e11. 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/DEXM82109222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ca7a5e16e82014baffd25fd79a36d3eea58faca51b6ac6b7512609296f060d. 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/DEXM82109237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5006a364feffeaa29d0c789e7a58af3183390164a2601f9ac0026b983d4aae. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBLLT2441740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677f6ec2f4d86eb029926c8b0fbd545d3aabb8b53f9fbbc469be37e530f716d7. 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/GBLLT2501879.
دامن سفید رنگ گلابی داره عاشق نشوی که نا امیدی داره
تا به کی من شکوه از رنج او آزارت کنم دوست میداری مرا یا ترک دیدارت کنم
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712e2ddec72291fb75a0b727bf0e1820d1d82b584c774a19b5197d3b3d245083. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/FRX762523955.