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 0xff1176e85cbf0e1dedcab4839e676cf187b1ce74aa21c0885945063ed071871d. 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/bf7a1b17-b1c5-4786-bc2b-4ea44a749059.json and https://artists.proofprofile.net/proofs/artist/bf7a1b17-b1c5-4786-bc2b-4ea44a749059.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Reggae Instrumentals, Vol.1 (Oneness Records Presents)
Maad Sick Reggaeville Riddim - Instrumental
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 0x45934d461d4f835f1704fe8f7cb8dad31793dcc05218614ba9f041315dabd306. 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/DEZ651723251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c92d7d67e5db5537cf2035590489974e01f09c1be00b9012c7f7816234fefa. 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/DEZ651723252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc57ea790ceea29128bacd4c0b7bf66ebad61acc1b124e27f8ecd7ac999c9799. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/DEZ651723254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cea695472602807a76df65c0fd5d1c195b1686eeddced9c6c6e18c43525f2cd. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/DEZ651723255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f88f8caf599b23a913901d53985db43a24e7179c8927fda23180cf2e2d1ecc3. 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/DEZ651723256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb424e6a47e65b0c40f6e7078037954ca88003c18dc21b1efebd9933325f52dd2. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/DEZ651723258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44c522833a7144c627048f4e4d5508e79baac9ddd790adb99df395d36e44847. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/DEZ651723261.
Oneness Riddim Selection (Oneness Records Presents)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4adda927b5ff5d018765d20f348d784a5b3e23723872dedac9fc80d7b5d5eab. 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/DEH900700038.
Reggaeville Riddim Selection (Oneness Records Presents)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ca96cc56d27a9f26ad40a50b3d88b0be266c374db15bf5756077b5d184999b. 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/DEH901200603.
Hemp! A Reggae Tribute to The Beatles, Vol. II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb265d208773d6ff789ce16e8c2115f52ca623780ffcaeee68c59142b1483dda0. 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/AR1K21300003.
Marked For Death (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd319af872b6dc26046cc90eb4caad39828716d8d2d195634e8770d7fefe4a177. 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/USDE10701364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd319af872b6dc26046cc90eb4caad39828716d8d2d195634e8770d7fefe4a177. 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/USDE10701364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5a10641a39ffcfb34251758e025d63a8e3ebde0263f6f956006e3797cb6fa0. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QM4TX2015045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec7085558c0c3ef9a743eac6c80b14b444001eaafc6c798034e7f0003da1467. 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/QMFME1980058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7e1a8a50b91b2a73451c982082a5b4c4431f7e722c6a46f20554b9558b393b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QM4TX2015103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6446d6a7aa3ddf3646a1a646d0436b1922f4e911545f3d004eda136679942a6. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QM4TX2015117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116fb10bc3af42d9d01b82466984de52019bbc4d3b825ce61b56e90ace49ad9d. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QM4TX2015125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418fc54b589fae4a2d92da951c8f944c1e26a7b7e1ea72c26c882c11f3d9fe8a. 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/DEH901400198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63204e7b5116c19bbf8965df665726573a16cea26138142cc9bcc4d4f673f76c. 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/QM4TX2015128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec92ae3e84ee8322894d1acd383f328319ca93a912c7dde04e09f80439376ab7. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QM4TX2015220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1bcb2f87a452afe0779196cbb0a90ed98c0cba1406fd2e07d97c2bcc3853f3. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QM6MZ1963276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3874a8f9b4d88d65bbf963d3bf2313546bb945329ff23bd30e0078ce09158c0. 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/DEH901500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb26cf606c9585cb692cebdb0833b1933c4b7ffc4fecbfe63c84677f6ae82793. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/QM4TX2015513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec7085558c0c3ef9a743eac6c80b14b444001eaafc6c798034e7f0003da1467. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QMFME1980058.
General Key Riddim Selection (Oneness Records Presents)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32ebec14da0ad569fb491aeb6bcc7a62d15e31c5dacf0a89b0297d80250c243. 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/DEH901200450.