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 0x812c879e3d94dadab8120b69baaad782adc1a1efb40162a426280422b14fc199. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/322bbd1f-d6e2-4b56-be4c-52bd7715e67a.json and https://artists.proofprofile.net/proofs/artist/322bbd1f-d6e2-4b56-be4c-52bd7715e67a.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 0x7864214aa42b3a503ee5235ebdaf2d83344a5b674bebba43bed7bf6b86e0cafa. 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/GX5MX2283612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6dfcc3697cc045fa556a727a994d3175013506849eaacd018dba808d119fe2e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX5MX2283613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a388b78b4a1e14b3f8d40d9e5031bf71299ccb0b6468d62c0266dac22ded89. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX5MX2283615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4e275fb747af43feb154da4b7ddb04e9f1e6c7f66f9f7eeaac0230fe77d11d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GX5MX2283619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d56bddc71e651e8d5321cff725fac61120f8848295fa285790e810e37e68ef1. 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/GX5MX2283678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf275d0b82b9b5f995470655306298742ffc277c885ef5c6197420878245356ed. 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/GX5MX2283633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8879dc5055ac5fbf79b18ebfd774912f3d6acb0bdd6e2ba1059515d4e1661bc6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX5MX2283639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11224bf1d5d4fe174f557e9cabfd50c9d67def418a60026d8a44610fafbd50d. 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/GX5MX2283684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da1aa412ed77770d6d8af5771d964777860935f18845f5cd2d4179737b2a144. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GX5MX2265065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfddc67c40cb4d00f3111c8fdc1ee369506d0fb19e7fc084d7e7a562dfba87f. 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/GX5MX2265066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9df258575469814b6846e15cb17a1ff4e70cbe16b5fb7ffa6fd21f6aa03a83d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX5MX2265067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985429b9141fe77fef2f0ba1a2e998b3665e23f0ba0fbb4a08cf6308601a25f1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX5MX2265068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a3b001b8dcef8f6cea119302dbc80a50568e7cefa980d774a558eb2f0e4b47. 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/GX5MX2265069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352cee319c209987c196dfd33d77509da01c5da8c3070b55a9480793f44ccc56. 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/GX5MX2265071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27fe17edb945328b214fc96309087e5411e3a085ea48c5f6efece0639db23943. 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/GX5MX2265072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaecf30b563ceaeaf04fcd58f7c8f5eccc50a75593c1af31279537e9402311c4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GX5MX2265075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e793c32f73af6369a489a46cb6e1afac5b096707ae3278ea3d2ec5a176c37bd. 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/GX5MX2265076.
My Chill Сorporate Fashion House - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bbbae9732f0d20d0b5e6894838ef600a9d422b2777562db54e3bdb6cfd1e18. 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/GX4R52471660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c2604c8a5acf23df4f2d7a566ee51969dddf4fc7e62ff21a9780a4d4aa6135. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX4R52432822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b5d3bac082d19a3986b64652f3f8b779b94822865d7e73f2e608b3ed28185f. 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/GX3HH2414577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87def1d504c1f19718302c5d38b1cae4a8517a9d467b21601fc674092428b805. 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/GX8LD2419097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41e6160ec199d36e545cc3e77601a95c418cbad892d0e97c8d4af19850301a8. 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/GX8LD2425973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0b9a88ce569ace7c37e99da0b61fb1396c8db80d437b9a7663e311f2157757. 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/GXBDS2328570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ec4fffef1b84109018e6b2d0ba9aadda68a01c73a276b0e5acfa6316517a67. 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/GXBDS2372744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53d28bcda85b31b7dc9da8c16dd827dbf94efb4230945513891844a1f408e4e. 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/GXBDS2390853.
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 0xd88a3d9a66ea1d5ab6db7d289ae1139baff5403a4c39eb8130f39008cf9fe5c1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GX5MX2249082.