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 0xd2a72fde674ddae47ebd78c3810a0517434e1b233416029e3870f35e475391a3. 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/41846d3b-e401-4995-9754-1288c414ac7c.json and https://artists.proofprofile.net/proofs/artist/41846d3b-e401-4995-9754-1288c414ac7c.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 0xd0382d35125e722e42c92ad39c67d8983de2b4764fc5e38867ce166635e5654a. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/USUYG1252951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e086780c8be129fd5538d17c6a694c7bd2ff6f26b3f019ba7e326c7f14f67cf. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USUYG1278314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bb805832a42c15c116eabf5b19ea5c278d59fbe47c6fae51277620dec89955. 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/USUYG1280010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b85150a539b8201dc56616e2a2c683ad7fb0b001be788569a8ffb8b1de42b9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USUYG1289673.
Purple Drank (Remix) [feat. D. Frazier & Lil Flip]
Purple Drank (feat. D. Frazier & Lil Flip) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118d40bf0dd82da171e19c03c5f030c36361e03b510f75031213743b74cd81df. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/USUYG1330118.
Htown (Remix) [feat. Big Pokey, C Note, Lil Flip, Keke & Mike C]
Htown (feat. Big Pokey, C Note, Lil Flip, Keke & Mike C) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905693f0b7832b86ae793676570ce388e8cc4acd598792f8a24dfe5d2d865cb8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USUYG1344448.
Close my Eyez (feat. Lil' KeKe & D Frazier)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffc0ef4287a533b0bbf7b8189ff33df362e20a5635637ae943f75944374e139. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USUYG1436539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89019abd49dcfe926f8f97f2b3b38e07621f95123b7c9bd7c00eb422d63799fb. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USUYG1436492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab4f94156281b1d3ac9884e07af9412661ec8edd5f483e7f2858bca87c249f1. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/USUYG1436493.
Handle My Biz (feat. LocBandit) - Slowed & Chopped
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025a1b7a09a1284ee996e3e33d8700a679d9353ef4f971693a498ad79fb86561. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USUYG1454943.
Close My Eyez (feat. Lil'Keke) - Slowed & Chopped
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526fc7dda65bad1ef67278acbd73f3ecfa8e3f695508b9cadfe476c9af1130e1. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USUYG1454947.
I'm Outside (feat. ZRO) - Slowed & Chopped
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3895ac465a9f9b4d38d6c7a921065c32018ca150ad684247679bfd8db8f489. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUYG1454948.
These Dayz (feat. Mike C) - Slowed & Chopped
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8415844989e6a13de7398c82f9cf00181cf32a28cffda7acba65250c9ba730c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUYG1454950.
Crazy (feat. AK & OG Barrett) - Slowed & Chopped
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a66cf72ae29ea999050189f7bb38292f7ae9ad164eb8be3021f299a9fadc3f4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USUYG1454951.
Designer (feat. Al Crocca & Burga) - Slowed & Chopped
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f087ce3aeb319fc7d5f9eca92e6cff6ef2c0dcdd1e41e0032cf4e7202c3ef9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USUYG1454952.
Sip Smoke Drank (feat. Astin Kush) - Slowed & Chopped
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17dc5c5997195585d48ee5f3c36ecde95549c9a76eb783457e558b20af15292a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUYG1454953.
Letter To Grace (feat. Macc Grace) - Slowed & Chopped
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0caf2ed05e4cfcaa5e2f4e1ab7fcfbe4784bb79db8c305c125542d1b489dc6f8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USUYG1454972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8e31f6e7517a1a434b1425291d5a697b7800695e604cd56ceb6ae6650a0897. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUYG1454973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2950a1592c3e667399bb461071a41dcf0ef441f815b184428a0d762582d180a2. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/USUYG1490845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cf98bd0027685c8ff531ad3178ba8ea9aa4b9c3d4b563eecb26fa15c30db22. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USUYG1490848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca51dfcf8ce7a7238a799bf998c7ea1b25b8bb6e075328aae38265eb8b49354. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/USUYG1490850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2230219bb5c014bea010c1008f9270b0d659d81b75988615ac379da9ec591d0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USUYG1490851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a23604bd5d579b9b77e4fdf1026c3a0974912265084c205d33eca4bc87d01b. 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/USUYG1490853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbacf4291b02f840b875431ebc949c55dfbc24f78462231b8631ef3af578085c. 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/USUYG1490857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b43a67d1a930b3fe4407c4e1d637f19084a7e91f9a9fd22d7f850d1bf667c58. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USUYG1527245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17dc5f378b8ab1d0afab5f4f7147d18fdfcb075c9a873015432f9f7ff11adc1c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USUYG1527246.
Feeling The Vibez (feat. Lo$GBC & D Frazier)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534a484700864219134bb8ec9ee2284dab16a87e5136cdd6f6dceb7c920b62ff. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USUYG1527247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca26bcae3bdb2aaef5a469beabf8bc0fc083fe297e496736d618484016cc6f68. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USUYG1527249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb1d033b901d5c99b66d2dfe5ef6f8a6f91f31be65d7ca0e6ad4bc8b1f004d3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USUYG1527250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581fea9ea1c9593f63060cf69f17f68e51b843e9d95cbb609e65e775b19789ec. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/USUYG1527251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563f1d19548bca4f50cf365caba37fed3b9d18cf10f0f7bb7ca76ac2eb7922fb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUYG1557143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9564b4d03ee85b9bdf920a4ddb353cf158555e916d023cc4e960904456adda24. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUYG1557144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd03f617321ffb4add201040028bf5ff15cbb4612e78f2fe622851f39502db3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USUYG1557145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1567635426be7f77053b5b1d3d000a987a04c1bd5dde652b66f737e536f6d95. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUYG1557146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f92190f9a9fa9ba1b28203ed13749cc8521e99ecc92682db2ae298865b9b24. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/USUYG1557147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008605723f032e1f297d579959157161fc4bea5a15eeffee09f36fee1ec62319. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USUYG1598609.