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 0xdd27280f8111655722cd2b76ada606244d3e20152b98d60342268715dc2188e3. 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/126ce66c-ba8c-4820-bd3b-cd41d90c662c.json and https://artists.proofprofile.net/proofs/artist/126ce66c-ba8c-4820-bd3b-cd41d90c662c.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 0xe244a28ee4db52e08d4592a01722e838eca4f2ee034cf5fffec22404ba71f24d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GX8LD2242752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b36ab29e05612e7ec4684d964bd08951b6bfd179479acf386945722ac119250. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZS632174352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cb1328b2dc34b588fce49079e92997c9a89defcd4269fe5a22fb05a4c229f9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZS672106613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99553c601575527da1504b031e1f03d1cf34420fcf40795e0f8fbe6a6154104a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZS672282544.
Señorita (slowed + reverb) [feat. Level 8 & imallryt]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567e1af6814ddb0e485984103dc508bb4cc0146af4fa80c15e724b314ea009ce. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMHK2250483.
Love Tonight (slowed + reverb) [feat. Meric Again & Tim Gordon]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12ab22affa497d1521c6fbf0c5844b4a3776f882f25bf8899facea4c024d68d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZS632298937.
The Business (slowed + reverb) [feat. R3YAN & Benlon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831bf665bbbb453c93163946ae9b5a1f922f0f7499d16a4704d0d7c417ccd3f0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZS662209683.
Don't Be So Shy (slowed + reverb) [feat. Robbe, New Beat Order & Benlon]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06479253af7e5bbec27536f23823a174ea836f612b1873db6008179368e945e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZMHM2283632.
El Farsante (slowed + reverb) [feat. Santi]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69850bfcc163795713df4acd6cdef06b3234ca7320308f3aab17f70d4089508f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZS662228488.
Scream & Shout (slowed + reverb) [feat. SLORAX & Leannan]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9e745a060857e26de15bfaa404aeea25df5d65741d96fe7a4f92acf7a33054. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZMHM2275901.
Dub-I-Dub (slowed + reverb) [feat. The Trendy & Boostereo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd3056ca5958317cb9b7095c9384501103975f477fb76bd37dc2fd23bb8ea60. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMHK2293009.
Beautiful Now (slowed + reverb) [feat. Ascence]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ab9bbafda928a23463043207e0d41b23dac62d8a962c8abfbe6fc59fdafd36. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZMHK2249681.
The Hills (slowed + reverb) [feat. Blake, imallryt & Future Friends]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038231fbeb011db0853118058c9c7a2d6a851235dd3e3a5e4ebc1ddd8a58bf96. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZS642207291.
Pop Corn (slowed + reverb) [feat. Boostereo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5025d1b775a927e6170608709048064bd619eb7cc0bc7e963710229a410b07bf. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZS632238535.
More Than You Know (slowed + reverb) [feat. Harddope, Halvorsen & LexMorris]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daee1745a7e7eb6c2e97e5c8ee6d9f8166867987ba1b205a00a8ae8ca5ddaf4. 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/QZS642252489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3440df91c81efa8463c73e59a1fa2ab904b161f57905e756ffaf46fc35b4ca78. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZS642242270.
I Just Died In Your Arms (slowed + reverb) [feat. Krayvent & Meg Birch]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71eb45f492fde944b50cd87aa793dfaafb20f712e59dd431b1d3dd61ccc0cf4. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZS632294779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad17629c1b0aa2322673426e7dbd3dbaca553f978609175bcf674c267b17db9c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZS632246565.