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 0x3675ac3a35e20d6bb5c5bbf7287118cb48d80ca6a80a265aa46199e7b0bbbd67. 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/3feae461-e644-4536-a805-adc075b9f3f3.json and https://artists.proofprofile.net/proofs/artist/3feae461-e644-4536-a805-adc075b9f3f3.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 0xa119dc9c12f66969b94b3224b5af12818bda503d0881c8659be2c7188be8e26e. 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/QZMEM2032220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fce26143ac477b68e178c3bc959e847535d6e6fdc7adefd75f1d45eb37366d. 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/USDY42266812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8160414c300fd889e4c969ea2fe2ef947243474448fc7df98f84aad97a52f5. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/USDY42266815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65690bbc22cbbae82f974ec8dbe0b7b4bcbf7e72ed4089fcbaa155f3f201907e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USDY42266818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53f58df40f51ad0c2b8e4ffe5985a5c6e85bf7c9802d7ce13bdf0c05358bd99. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/USUYG1473169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64d7e7c58a8aa81d75ce023911b4495c5d4c267c0c9e5f91e5fa4e7244e4dd6. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/USUYG1502323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa2aced2982e38909db32d9e005e33388bb252d9a1b1b9b029ac63641aa2387. 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/USUYG1532877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f6e9802d342feeaa53cd63b209539567b7244386e9e412a694c8e49d53dfe5. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZNWU2498553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bed9ec3c1c25ffe1f613f570d65a566495ed99bfc4215303a2413727955f89f. 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/QZHN52549703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5e6013979ab52b56284c685429f520ef0a7dccb846e870d0e7a88d54645119. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), 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/QZHN52549705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f06d887d28344b29b3730a031506857981c967c023809ae2083cc8d0f082c1. 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/QZHN52549711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2800af42def0e330bcc47c1a6d47dda18dbb42052bc3a93bef0229929cb8eb83. 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/QZK6G2519755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbbf72ad130c1abf4f35117e844b53107454a947e6e6a5bf78d12c168383480. 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/QZK6G2519756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba52f49b4fd7e0b6279cb4c82e3d267761aef97dbca28dd0fac3c4a8e3670e8. 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/QZK6G2519759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6a6173780616de26ecbaf8de7e1fc8b120f3c6e87ce85303dd01e41bf69b87. 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/QZTBE2543747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7029cea754cfc229e835b8d5cfdf4d70b8b46f1055e8eaa9140dd88d4bed163. 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/QZTBE2543748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb057079be7ffe56505f48bc190e23854fa8f6a8681bfd8007df0489b9bee7ba4. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZTBE2543749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d9fd4609174c2f82d35ea29808541d22ea1aa792536b2fa3c06b67794671c6. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZTBE2543750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86420b6f0cc7143e3dd20871296b318780293ffd10ec413f9b3647d87491d294. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/QZTBE2543751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bfd7728354a2ac1c2bede8f5f39d0ed97ea402453f42a47d789da0977456aa. 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/QZTBE2543755.
Yakuza (feat. Fordio, J1hunnit, MJPAID, Prince Jefe & ScrumbleMan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf19194191c06d7b366a1b634ba6715383dca05f5d8a57e677e939662cfe9e7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUYG1509886.
Waffle House (feat. Drego & Beno, ShittyBoyz, RMC Mike, BabyFxce E, J1hunnit & Prince Jefe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b77041c9741efc08492ec017b330d5a0f58c7b7b273bc29121f8a026ca7651d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUYG1462265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb1be8665feeafc735d7b6d31d30d53449fcede3f11e7a67e286ed15a04d06f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USUYG1471561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71a9bb62e07d713165fb21e0d5d3d516785e4fff3d9e5cb51278414b4d82f7b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USUYG1473507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee3c864eddb350b34201e812270ffbc0f025d1dadf10d3b495c9182531abf5f. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USUYG1473506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3eeb4a6db999db2fca0785369040d2371c082ca071b15479f67242b903de21. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUYG1473510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa043649dc02aabda9257b16d4a69ada6754c41d83da03f1e3eea4d1db732acf9. 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/USUYG1473512.
Song 7 (feat. MJPAID, Fordio, Trdee, J1hunnit, ScrumbleMan & Prince Jefe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f1080d9c64a0361cde4fb9e6cf668af4649bf175e5daa4ea780a12bc48c8b1. 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/USUYG1508473.
Not A Love Song (feat. StanWill & Trdee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5f7ecf9286b76e4224918357d304b38a853d0eb468bb1d78b18553a5cd1a80. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUYG1458435.
The Coney (feat. $weet-T, Prince Jefe & J1Hunnit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20102eb36300918ca6d795d2bd6a74d1ab533ec0c1167590fca2e8849499d06f. 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/USUYG1458768.