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 0x0ea69b17a01368265a1f05234a3d2bec0644aabb83f4b72c1dbd8cddff9c41af. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da78bf9d-7f84-4c0a-87ab-28ee131cbdef.json and https://artists.proofprofile.net/proofs/artist/da78bf9d-7f84-4c0a-87ab-28ee131cbdef.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 0xfe7f1a1d29cc56b9fda6f52344f25331592a868d69013f8426f5454da8fcb8a8. 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/USBAE1307585.
Rounds (feat. The Jacka, Om, Ace & Kae One)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edc18d4ab2abf9d568590c4cb8f0596b039f498da30a9266f5bbc0850d16cdc. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USBAE1307588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb911dbe4fe979c1500a54c93172f83d40219d2c03e27441f92c17e8ae51e4fba. 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/USBAE1307593.
Making Decisions off Truth Since the 80's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a0da2dbb5535e2400f7ec1df6c0e25fa5ea802ff109b428488c1d0b1765c34. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/USBAE1309288.
Lay It Down (feat. M Dot 80 & Holly Michelle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1584a293b51202d7eb1a4d7b535926363b2200d677d2c5438f323a347525fd. 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/USBAE1310665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d29b1dbea4baab6602695ceaa24bd5d5651d1d444018a70a8394f74531313dc. 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/USBAE1307552.
Back 2 Back (feat. Young Bossi & Bird Money)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad78031fcbcb1883e4d0690b115097d21d822126430348dafb561306c4d06e98. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USBAE1307553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941f7c252ca93a7a736b1ac36085f4f5571b89d0f40a60b19674fb72192d67fb. 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/USBAE1307554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b43a2dd480801cab3557501995ca16503b567f2af7c9d5b1f501fc5d98a1e05. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USBAE1307555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fadf63b0a89773a96357ffcda058bac3208f31edf4d4983f827242fdd42b70e. 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/USBAE1307556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8f504ca56e9e75ddd1881110c174a5b59394edc5d6ce949b2822294515e034. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USBAE1307557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa483be6d8054551ee7a02b453fa6270928aa1554560d97ddbc8092b47712e249. 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/USBAE1307558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42be0cd1d13706b14bdc9ce476543275e6216a65aacdc63021fd9a5e133e6c0b. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/USBAE1307559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11206ecb63e4f7b3fd255fb77fb66f68b1cc869a04ae84e9e4a21f9ca2246e9. 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/USBAE1307560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45cf37e76d7687ac79f8b7da238b9589e02c113eb5ffe82d4d469e3b13a950a. 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/USBAE1307561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78e7000227fa6ef42f7e938d5037450dbbc00087fe060773a136259e02dbbd0. 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/USBAE1307562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf82b10d492510a5903059a5245f4b046360f4c1059ed3fb6bfa188629d9688b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USBAE1307565.