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 0xf430af4e50e13784ac71cf7eb09505f9f4744ebf3af22df0b3e80e4b87feff26. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e0ffbe5-7864-4942-a15f-697ab342c3df.json and https://artists.proofprofile.net/proofs/artist/7e0ffbe5-7864-4942-a15f-697ab342c3df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
UK Jungle Records Presents: UK Jungle Volume 1
UK Jungle Records Presents: UK Jungle Volume 3
UK Jungle Records Presents: UK Jungle 005
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 0xed3c64d856c73e3a1e5aa6aae66c33d37fd08e804255c024fc058a22ef6f2fbd. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/CH6541804654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a1bf28f9186cb13274179a6e7e657a3730f3e713578de227e018be660ba5cb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CH6541804660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc951e313918ead08fd624b90190fdb56055db199e8cfa02f1adc635364374b61. 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/CH6541804665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544ac27cd1240bbb1a9c2707d6e0f4869b3eb8675662942616db3608e7da471b. 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/CH6541804671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc80c33c34eb580377345183c38c0409ee612089d512c6c2aa87c878050bae1b. 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/CH6541804675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd3e9c2b0b8066a8635fbbfa50cc5e01916487bb2d32b2e4014ad6ac1d6d35b. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/CH6541804712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd258a07aefba6bacf691352c0d7022d43dea12c79258ddfef0badd5089a704. 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/CH6541804718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fec6a405f719a3c05318f2f9d32d9eb60853380a097850385a61525dc5a466. 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/CH6541804720.
UK Jungle Records Presents: Simply Dread - Trek 1, 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52afcb63957c90d0f2b6af9064b9a7f09c68333f9c2aaddecc114e686d65ebb1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CH6541804690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ded58a5c271308fd58fe456bd2d4035c8279dcd3f0768f500c9d805dcc183a. 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/CH6541804697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321247e1ff43d267dabe511920aec1e10be393d85414dad1469092f3eb08f381. 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/CH6541804698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5a60febc22e8a45c168b35ee09511f0f6c1154f4407cd6cff5b65d8afad01a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GB8KE1356824.