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 0xe50889f7bfab55a62ce271f9ba742df1c3e24138a8b0fffecaddc2cfabc13d9f. 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/e099b9e0-3b21-45c6-a40f-2a7ac6dda6da.json and https://artists.proofprofile.net/proofs/artist/e099b9e0-3b21-45c6-a40f-2a7ac6dda6da.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 0x532f8d76495813bb23b169223378ac38225ac83d8517988057682a497790997a. 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/TCABL1201771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81394eafc9ece8c1e03d7eca1f5006580b165f839c9f345982cb691067bc7c8f. 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/TCABL1201793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b38456b973a56a6e2b1ac9b22fb65f9e276941e8ab4209d8e706bae841f518. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCABL1201808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42f95b0a11651b1ce1d2388db979c29adcb2b7d7c8462956cb49168722cf9bf. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/JMF891100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907dd7211c21a29589a39c89905cc250e80d1e9e593e6a594f7afb7eb69f1875. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/TCABA1162784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd122917ba8c51ee696f6669145af843b80425c133ef7ddd0fc22fdf5a2b3a7d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JMF891100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc166bb974e56284e07813659fc9d1b0b94a228151dad01dbb2451adc44133096. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/TCABA1162828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f4fc8708198cd5e95fdb61f6b95a650104bf21aa121a7b4a2db779e9c4472b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/JMF891100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb44532806f499f56a751bfe0e9b38cc12960b37961756ed958609653a45be3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JMA341700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d04791766e337278d7f7f32a192d90f74b7acf15c4ab41142e238507aeea91. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/JMA341700002.
The Paramedic (feat. D.a.Jay & Dimitri MC Dowell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ceff63dcbec9376e0f586e736247d14ccaffd297a320f1e963b5a9188ab40a. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/JMF891700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037342172e44d632439fa5dc20c7da0e47740b8df9a90e2e0007de29f12c2b2c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JMF891700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc380f8ff5f0ff6d52982e0b9fd3d6f7cdf15d15b4ad12693d61931173fdd5052. 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/JMF891700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4924be340ee83b350e7afcd4e596fb98f3944027608352b38045e6acd493b1c6. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JMF891900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83d1dcc72365c08f5295d3d285fd15a2a81c155624d6066e7861e59fcb29fc9. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JMF891900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a547257639f3499f626377671922c649316e27695eec103ceeae5dcec956b17. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/JMF891900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5e920cce490db12f9687fd0ce0e25851c7514c101fc4227d3d6c7104bac7d7. 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/JMF891900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b0d3153d5dc07faf0c7430c964e25e2f91c7937599e0bc93ea365426751e0c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZW9K2416715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7569c72d03c513adcb6fd4a24b13a6ca9ded1c4923eb925fe041e97cd2064678. 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/USKO11780612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574bb173d2d3d33e2bf68b961f9828b22db203bc938076d43e6714b61c6f2c59. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:27:20Z), 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/QMPKX1805242.
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