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 0x7fb11aa9882c0e19c99d469869ed7e29561ce8c7cf1a7ca5d96c044affba47dc. 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/947511c1-a2a5-4cf3-82ef-85ff7aa31642.json and https://artists.proofprofile.net/proofs/artist/947511c1-a2a5-4cf3-82ef-85ff7aa31642.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 0x1308c900d57801c31af490230d9112c78cafecec77f024fd34ba1afd251cbfb9. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZDA62033883.
Somethin' Like It (feat. Juvi Wayne) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe67b1332b96b1db6e4f12f165a683b46b238ad720221d72410c63c4a0d5c92. 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/QZDA62035395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100077d39c7dfe108e36a4e0621020a200c5ba0644761b9854e65b685fbad440. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/TCABR1310613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793af1eaa9de73f1bb476ca64549fe62c4f53d83d9ed9e487dd680af90d20eef. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCACG1592994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327f1fdc1d79a39b5f3db362ae1a45e90e79c00857b0cf53b0624a6802d2b800. 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/QZDA62020111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62f8c1b80a11b896ba3b3e649dd35aeb87f5caaaf78b293f4cccee4db74bcc0. 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/QZDA62020112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7389d37f683625fd0f409a3e3ac6d96c30efb97e1ce4d528dc1aca37ec75a1. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZDA62020115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b4988c99b5928c33c16ba3c6467eaaaa902085fe96dfad25b741655f2c0d1e. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/USSM22000356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ea6e9e16c1ff195591ea2272df3fa218b5a825c61295676d32b5a3c8bb615c. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZK6P2218349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874251aec2a64de3cea23652cd701a26b7a7a610cb1284ccd3fe844f85ad9f48. 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/QZK6P2218350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f22ce918764e289ce3b366116a92afb048f37bc3d38b02d2c45245b03a7cd1. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZK6P2218351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ee21aa9d993b113ff02a6653b7a6f8fd6371a93cfea2f1fcaddfd185f4d107. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZK6P2218352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475c00d275ae06c5610a7ef4e68e50195b34b89924a5eb92e2ab64f9f5814043. 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/QZRD92302574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cc8364a29ab144267c0c9570aa58c6f6176a101e914484cf20defea86dbd1e. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/QZRD92302596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6032dadc5dc5de149c6887114a8fd0bbc38f09b1aeb6e0e94e059a2fc50921b8. 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/QZRD92302597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa323b0af7884a42a3bd995f3bf5ffc586ce6334ecfa83ce2937acc4dba10436e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZRD92302598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f8d674d05fd0f92b9414dc84bfb92550252091dcfa7698d6e4c4960c90f033. 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/QZRD92302599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bf888f46fb774ea237e59b06553334617c9add491c35a40c2c9b14de86a9de. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZRD92302600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb2930749c572fb041b3423a8d235732f8311462393691585c97dbda6eab04a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZRD92302601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fe79d9817837d694424af014e4f23d14435e2b03abb421b774f4006a0e06c2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZRD92302602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fe79d9817837d694424af014e4f23d14435e2b03abb421b774f4006a0e06c2. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/QZRD92302602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc2a8497f4e2eba68fe145b67ab2de841e24a4ce919949b34cb2c1e756b05c0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US5ED2302648.