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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8250d9e13338fec378a8f71fc7de1de9ab0d802601c1c31bf303a2b5dcd3b1. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0b8fc70-4a51-4701-aca7-b7ebc66e8e9b.json and https://artists.proofprofile.net/proofs/artist/f0b8fc70-4a51-4701-aca7-b7ebc66e8e9b.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2bf758b726925aac91ca962c51d9f02158f8359c67d16642968dd32e71cc36. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZPYN2470096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071f6a1c01e96938b4ddfc917466bb77c1eb0b68d3e6825dbae682b7106aa88a. 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/QZPYN2470099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c0d07cd381c1bfaa03ec74639874acc0874b19b02e547a40af40ed510ead1d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZPYN2470105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb63a103491d7ab9b30780b0c442d7990cff363db774a3991751f5ade068f09e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:02:19Z), 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/QZPYN2470091.
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 0xfe77b02e31db73329c2abe4cad2cc160dd24d2d50b102cadb9b91e89cbf4655f. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZPYN2470092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bd2a081b7f8c402a6c3e2475afa13e41d0e3e19c2406780192d8cac47c9085. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZPYN2470093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fbae60709ffb9dcc32d741d79e5ecd2c4261eee68c42ce72572368bf5c1672. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZPYN2470094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd87f5f7e9553ef85bcfb53b56f3a198929c001c8b076ddfe76ddde0ef898443. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZPYN2470095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58670638c0a5ba924f747282f6a51603c3fb651101645e36b1a10072c783420. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QZPYN2470097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd92f4ee7a3503a449912ae010138fec671a10cb17ed40e06e2e1b866eb883f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZPYN2470098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481e51461f0dceb23fbac5b26fc34af7d3c4e075839b82d0e9736e7e1dd09093. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZPYN2470100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4203b55d9866f8a3b7a7c6d6fc8fb821f936fc8316294cf5127bc1fbeea7270. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZPYN2470101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8c67fac4df9a75c5d4ca051001c4cc52857f972b6eebd1a8b3eef43a8bfdba. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZPYN2470102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8746a1cef1d16272a804ecdc6d21b6c33d39dccf6913cf4dadf59e4c594b5e71. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZPYN2470103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d070049c3fc4d2d148a9e2107a71e26c6b08bd0c0913e94137e6632a349adae. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QZPYN2470104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4793ef11f995ac5d321b470d2081bef4942b0729e5a1f8dbf3e7935a7b524919. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRX872187008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ed6545ee08da820e253808e0bcd01b565ebffec10c68ccc2b7fc6c625ce286. 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/FRX872187011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5af4553bd2e3a20a1ce35b548936548ec1bf3782c23eeb6bb03ad8903ef4f4. 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/FRX872187012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659fed8424651d4de178c518f9b72490084537139700597b3959a9d92a56b669. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRX872187013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afd5cb22e81d6b55f6afbb013b3b146df3f5e30d5c2f35877298de49d7a46d0. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/FRX872187015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67ba0d3c0e86eadfd146c7368dd9d6dd11b24480b5a89a805e8d5cfd030db25. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRX872187016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa873d18c49ab9948c8dce597cf4c02ebe841dea903f3838aa2c17352c9161e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRX872187017.
TWO MUTUAL REMIXES (Souljah Warrior & Crucial Rob)