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 0x3f380a6c0ccddebfb5886c2b616a917027d0f13966beee12a714df88998282c8. 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/082dc585-3763-46b7-a91e-a949994cf04c.json and https://artists.proofprofile.net/proofs/artist/082dc585-3763-46b7-a91e-a949994cf04c.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 0x5799d6f710ec86d2669168c69b64058efabd37f7ca956486cd690f2a5f1844af. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZLL92395915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20575d40ffb2d92be4c1bbe2a6e513ea5478b5ec4d73b734acb0e26fea5692d4. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZMEV2313772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805ccfc6833e1f64a033be37cd3eb78711cabc15c1358a94ac466ee4075c1203. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZMEV2313773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a2a2f47a201bd0d8963860a3a5ca97de8c6caba7c3882df721cf38b1c564fe. 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/QZNB82332574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1568f90aa1fd72d004b0b2b987c5995008e4f4effaa68996c851ae458277248b. 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/QZJG52470332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e01bd6e374b39cf99601710bdcf83897e3dfc56222c15342b00c7c4d148e81. 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/QZJG52470334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb1e45000905cdd593576ed65bb691c0a6077558407b8339b86efe73f24afaf. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZJG52470335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0f8b798f50ed14db90f52b3ee39bf11a6fb21c59d50e86eca7fba8bc024964. 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/QZJG52470336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaedcce51f37e4580829b3bfcb6db06b8b6d0f0310ae91395e70a1af5ff9d9e74. 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/QZJG52470337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1781cca55ef08a66400941fbfd410329f6767b7eba602583faa3acfe8fe7c493. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZMEN2438292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c55ea69eae59eeeb48ef7f9b99a174ae1d592e5ea1f0afb22abedfe98a8226. 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/QZMEN2438296.
Ian ducking shit (feat. Mob yougin & Ea)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e238a13c332a331163c69ade3a94dfa1603c1dedd18980d8b250e4660e53534. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZMEN2438299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8473dc16b00dfb4744d083b7d4f224aca47f82e960b2d516a8fb35301edfeccc. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/USLD91771679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290be9a7cdefd64531d7729c8ccdb374113c78d32c7856926ad194b4447249b3. 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/USLD91771686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3823a0e5b958eacda7bea2d3dcf88d506c44b14b306a7a1e5e3a52b2c937340d. 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/USLD91771688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7a9a1fd99a2d3ab33c6509a8d5aedb874f2f464957fdf4995669ddf6d28899. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/USLD91771689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36976d958bc9f0628df9169cf50894671eb1b760e786ec68629826c3532d036d. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/USLD91771691.