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 0x5c3425855d3f34e3b930f4dbfc2f1381b284cc7254c4f66373df6a45de0a4ad2. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ccd2a58-1f4b-4129-b2b6-742a5e4bd26e.json and https://artists.proofprofile.net/proofs/artist/9ccd2a58-1f4b-4129-b2b6-742a5e4bd26e.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 0xdc998c4a2ddce20fc50e5d3b06f5addfb78c796058386d5eee6b941e3b1a6524. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/TCACU1647617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e1758961341bbc35db6083cf3847808e259cb3675221832a50b92fdfb0df4e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TCACU1647575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fc8ea0b51c31d1e6a79fa653b4eb318954ceee21bbe643cf586bdc817935e1. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TCACU1647576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d4af299d48b3c82e397ab3d183022157ae7806096ddf250b22f5f2ab11439c. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TCACU1647612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc998c4a2ddce20fc50e5d3b06f5addfb78c796058386d5eee6b941e3b1a6524. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TCACU1647617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe55bf59eb89ef9a4cd1d24433189eb06471d4b9c5b9e5550ff22e8c7dd7d35. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/TCACU1647620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8c452ad1359c2a713d4b0c665275bd061b1f45761900c5f1f356dc64504971. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCACU1647623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2885d933196571cec7604251f6467730b54812317bdabb6473614d6edc69ea4d. 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/TCACU1647625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32962fbc058b6625a578fe9bc2db171ccd5a29b5e0ac4e57a979961d96a51fad. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/TCACU1647626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da18af5af72452700769748482eab3c15ca63455d5aea817a2a4813d24155b0. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/TCACU1647629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa152613ad32e3ccce030d256c27348fb925b5e95db87b554e0cdaefb7ed9ef5b. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/TCACX1798853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf254901857c76e2220538e6417d00534e2c41da5b638e401001e82ccc6835078. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/TCACX1798872.
Flash Bang (Barefoot Millionares Remix) [feat. Geeze]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe5816712853779e18c27294fea9f5493e49ea0a4bd25387c78c05c93ccea1a. 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/QZES91835964.