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 0x6f70a4cbcfc64336436d9103d42603e3cb6f515b1c8aeeffe142270c5c802c3a. 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/e0dcbcc9-b77a-4a2e-90c1-6b836b2b0d06.json and https://artists.proofprofile.net/proofs/artist/e0dcbcc9-b77a-4a2e-90c1-6b836b2b0d06.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 0x4ac82caa05a561865d6031108484121e1797a42c7e17373db2f64dee7ea4098d. 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/USWB12002880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44cfeda61fe3af35b33a1a9e53a71cdc0119d0f7cc56fdc20d968eb4d294e8ab. 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/USUM71924171.
Hard To Imagine The Neighbourhood Ever Changing
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac87490a82d174754f473acb0188d8b043c31c00ad01b3ce316412d3907f3b9. 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/USSM11807187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1f2793f7b0f744649388e3eceb556295ba6e1336af64e8e890d0abb2461112. 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/QMJE32400012.
CITY MORGUE VOL 2: AS GOOD AS DEAD (DELUXE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44cfeda61fe3af35b33a1a9e53a71cdc0119d0f7cc56fdc20d968eb4d294e8ab. 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/USUM71924171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c3e474baac021b5456a17074687bd7ae225b75e91ca300674f3982fcfdbeab. 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/USUM71903429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8d054f33480f0f48fa863f8ae06b3357b61cd12fccb381d76319fefd4f2c51. 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/USUYG1234406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b61304afd321c30f135c8692c84617d73d27850ec20ffc1d35792649f13b5f6. 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/USWB12004906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a1851595671fc1b23cdbc0ae499408100ce695973fa2f7f33f3c53eec6be9f. 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/USWB12300734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e7bb8368120e730be86577f1078db39d3f144e6b8e0c22262a52bad8dbade9. 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/USWB12100972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a3e555a8f4c1c951e50391f7eb8f1d779be21f99e2cea1fa7829b9845b3395. 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/QM24S1842599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045a41b69a6fa221afb804f40d4912e0337eef7d119f5b6d08c9ac09d74739ab. 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/QMRSZ1800738.
I JUST WANNA LIVE (feat. Andra Day, Lucky Daye and IDK)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bbfa309610f113fd3a448e10b517e106ccfecd0208a28e27cb52cf7e5e4d27. 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/USWB12002374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae265b313dcf81d891c7504e8be650990cde66b7690f7416a1d07c0fe0154233. 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/USUG12308173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325dad4a055b568cf2bfbb5dff440a5dc5031680f2a732e00b71837dcf4206f6. 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/USUYG1270940.