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 0x1de3377a9b84d99c6fb220d8fe074e33966408f9a3e059d29ccee98170a8074e. 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/f6fcc7c8-1d7b-4501-8d7e-8fdc7aa8bf33.json and https://artists.proofprofile.net/proofs/artist/f6fcc7c8-1d7b-4501-8d7e-8fdc7aa8bf33.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 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 0x8196441d0c2ed56901b452c5920cecc22b6a4dbbde3dd6167012e1a58d8ddc59. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEBL60503622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01aa9e57f89398803ea451119c7baddd62daa5725dbbd101f866331fd6a6d263. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/DEG840500220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3760864d3b30e65be66ebbbd11dc1b4d08c6adf15a0261ad119f651be63515d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEG840501300.
Hip Hop Collection, Vol. 2 (Instrumental)
Hip Hop Collection, Vol. 1 (Instrumental)
Hip Hop Collection, Vol. 3 (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6d6e6cd6e24f88935f1ae428dd60f6b6b1d2e4a1630a773b2228bdf69706e5. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/USCGH1724828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c4c35e556bd9b2cb724585dae96ef06fec15c122469b19c7ba8bd4a809b07e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/TCABB1122530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adfeb6659abe11f8af591afb465c235f9f212f0a179491ef8f6496ec119fadb. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBCJY1205219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bc345ba4ce77d78f248a07acc836c57924822cd6dbd0a8e93381922ea93d07. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBA2A1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495c6f37bb7ea97413c6b7b359a94ba5d8cb011fdb2bc02bae955785b0e7a909. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/GBA2A1900004.
Manipulate the Universe / Anyone, Anywhere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da7359bbc1c13dba6f704ad67684325f375bc843921997f76971ee2b1000ce5. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBHYE0700231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905affb1cb99acc32c53044fea5214f8b5a9e2a47a4eda3538e867e12e4f2c31. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/GBHYE0700232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1cb9ec540135c1eabc1b926e911b2e76f3ac09ace08d40f757cb195f97677c. 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/GBQPN0700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fdfe27b58e949128cebe858b4884232c669dae39ea9d57cb196c0aa196024e. 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/GBCJY0351001.