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 0xa675b837238686b2d5ee7bd819c2f71b9f20e4c7f3062c7d4b8620481326a8eb. 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/b6e00115-0358-4fbe-8beb-256f858f60cb.json and https://artists.proofprofile.net/proofs/artist/b6e00115-0358-4fbe-8beb-256f858f60cb.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 0x6443f94c2bdd8b6527b65ff5ca2d4f2a55ecf0e5ceb91c75f0d7cdc066f132c4. 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/QM8DG1702468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840b75dccf2f6d7e5b25f936e0440290f9c9aaefffe5f92118a984fa5a60a97c. 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/QM24S1835550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe466c426cc7e3f8ecc0e7914e82e29e327d0c1fd2c27c31df645d71a5cac7ac6. 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/QM24S1835551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a31f3c8defb0b9a7aacecb94fe8844e079d0864c3113ef594fc9906be30165f. 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/QM24S1835553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4eb258e4b164d9d6a9cc451e91adc3da265f810bdf815ada01ae20dd6fdebe. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM24S1835555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc6da0e148625a7b1f3dedcd14b11bcf0553faf1b5d608bd45258a5227fa452. 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/QM24S1835556.
Iphone Screen - GC PRESENTS: Live at GRND Level
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67d919bda3e154dd17dc8658c50855aff32a995dcf0fa051daa3e45af62e1b1. 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/QZNWZ2192535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97fef9e63e42d074b7cc5e9afb1d2f3026c14c16b6d8315518ba9fa5215664c. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZMWW2247205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044b4666b7387d6bdefd3d2137c4724761021283f827a215ef89e04a6d61319c. 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/QZNMX2283372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e498f47a174c04749bcf011823fd3cd1a73f91da92f70c4ce110ee5794671e. 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/QZNB82310594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211c94f5e7f0d82f2b64c8af52cfba49821f58b62fe69600f667da65863594d9. 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/QZNMX2351219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cceb40fa56c23b53558c17bcf8f6e0a40074626b6e0c5f3e80db6af938b8f71. 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/QZNN22395616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f55a9b2ce75f22b018135e75ff9a893bb3bc693ccbe2aeacf62396371f6960. 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/QZLL92474650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24db44dc67ac58d0a22893f18afda299ca840b7aa3c930f08289caa6083e579. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZLL92474654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf429e57723486b1ea5e66073b31190b862baaf83cec56f16e16ae9601bbe4df9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNMW2524455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa278b23ffe5b8a950aaab4ac26e25405479c24b87c9d522d6df6eae5b3e98b58. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZNMW2524450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6913caaf7b8fd54cdab549352aa7e2f8924010c9f50544ccd207ae57b56962. 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/QM6N22459204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bac04645f878c8a044af09802958813654d734e12aad69c146e73e7eeacfef2. 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/CA5KR2013080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fc9a97f538573b510ac11606fcadc47c4980361d34dff6a0ef753334c30a26. 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/QM24S2106294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94d48a35af4ae366d52f1c29b1acccd76b1abd4ab3e156890f369beac3b7dc6. 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/US39N2201815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514b472d0ed0b93bb18e01aa93bfdb3984dde13ca71c36fb27e1bd0e8d47e0dd. 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/USUYG1160396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6913caaf7b8fd54cdab549352aa7e2f8924010c9f50544ccd207ae57b56962. 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/QM6N22459204.
Some Things Never Change (feat. Iman Europe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91983b7e7e2b14af8154d79c3bb6fbe7ef646ee4a920113fca2959d4b8493f32. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CA5KR2013082.
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 0xed68585f71955ace7a48fabaf4329daa6a6758bd1c1d618861466761bc874bb2. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QZJG51918101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca327ff126895a6136cde2b59928d527434eca2a1d1d4dcb7e43658380d08c7. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZS632226394.