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 0x08fe78143a3eba4c4bd7a24a3c5b4454cd67bbd520e669aa1a11b3dda527618f. 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/2837cfb6-e079-423f-b01d-255a79cc55e9.json and https://artists.proofprofile.net/proofs/artist/2837cfb6-e079-423f-b01d-255a79cc55e9.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 0x67b5afc5e415a5bfee8f09c3c2c5dd1269ac850cadb1292173c1ec1f0cb24088. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:21:57Z), 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/DEMA61100140.
Turn up the Night - G&G vs. Davis Redfield Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115d69b79487c807966cbbf830e9ab8db80f33afe45cd2ff3d071aff35223283. 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/DEMA61200323.
Turn up the Night - Bodybangers Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75e99d07ad393a1637a42394298bc4c4446f878301e480e318653571cd25494. 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/DEMA61200324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ee4be100187cfb5305f877c69af91b8e13edb9a7de2e83b1e0fd15f1f222d1. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEMA61200320.
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
Turn up the Night - G&G vs. Davis Redfield Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e0a4fd3ee02397432e2583ba02fffe2e5836f71fb31ad2741c3ba53a3a10b7. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEMA61200322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62597d6996a421dba4e840de5188fbf73d0c31b20917036ad947da8317f0f7a. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/DEMA61200325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddf942b843f10bc3ad0a0a4505fcc107cca6ea0c7b4a40954b03abb470946b1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEMA61300671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354f772569dcc5b69f4bd7efb7ef384bf645eef99e0cc63f369f302e61971b15. 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/DEMA61301700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a38ab1bc4112e80ee478b84819c8720e0a2821d48db0b958caeba310ffd392. 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/DEMA61301701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4befc21d061d4abd20689dc9ddc54e08ec2d98e368dd8987b507289cbc0f80e. 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/DEMA61301702.
We're in Heaven - Davis Redfield Mix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d1dbbdc0e47f7d138f75f6d7442337ded8225be2a88b613ee11971cfa417bd. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/DEMA61301704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e6f6554b6f76ea36cd5da4608f2cb988caa1cdadb4cefa4585d3eae8bec356. 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/DEMA61400331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1001a231fb39d1e5eceed044d7a8d99a020fed4545c771c9ba2ad159b6c0402. 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/DEMA61400333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c465fc6dcd17e966fc058b92e6520e909a13ddf92f98368517420a1939872f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEMA61600370.