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 0x7504c2566484af5c98b2ab22c58c33b26eacb8af58e11c385273d8ae168513a8. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8bb82ab1-6ea9-4e66-a9c3-66f980d43c28.json and https://artists.proofprofile.net/proofs/artist/8bb82ab1-6ea9-4e66-a9c3-66f980d43c28.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 0x8f9248fa1e349014e2bd2cc15d52fd6e5092f85d2b1d04cfbdedc180a4b9f402. 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/USHM21336490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae490031f62c4eda37c884ddfb93ba29309241d52e9bfd2ae4217a757cf8ff8e. 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/USHM21336491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa336d2727a8b34012fe090a8dc47b86f9270fa812a41b3cb52ea36980ee17eea. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USHM21336492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9240eddbf698719d9ca6553a3035682392fd017269a3ec9bdb3ef88b9f4ca8. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/USHM21336493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de58dfb30b0cdb52db2fa3360e640f9d5ea47277aa6c688a6c2fccaad355b61. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:20:52Z), 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/USHM21336494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d287053a7855ca1822a4e415a90f9a250faaf1a02a319cbeed2ac876a6bbab. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/USHM21336495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed662934aa551f920dc2f4484f8efee394e63eb447279da4c44fb3f3f9ca3a5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USHM21336496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29dfc2e6a0506a5e42fe3ffb930c5de44042732f6822d033c335733270643b0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USHM21336497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd761bf3da640571628fbd3bc5d00e1997e7b02603360d741ec1cbd31b3da5d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USHM21336498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7b36b2b9601547d4069c6894b21207f181236059000da7a11b8a186d856352. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/USHM21336499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8556c9fdf9cf265cb0d305d0f9f103bdd466db2473fe04d267aba6757cc6cb8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM21336500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1dda75d56b0672c198a927b70d33b43e00c848bdaccbd5cdbd6ed3dd1be3b48. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USHM21336502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92eb7546be53687eb47a0e4b8c1a179cfbe047d8a79c3cb2a082af924ab81a6f. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:58:42Z), 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/USHM21336503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52ffe0f0054fd16d3d53f1b4eb581d4dcc0c0130e820e7365c2dd9e0e8910a4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM21336504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57cf7cb9d96ffdeeb8c3eb33747499b7c1fd1a5cf12c6b056e99f07e245ab618. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM21336505.
Mes berceuses favorites (Instrumentales)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533ee97917be93ddcb1f9523f82155003db1df3f68e785d3815f4247ab4d42f7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USCGH1621518.
My Favorite Lullabies (With Instrumentals)