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 0xf667c50a15c1d2d36c33967edb2397a4891633c4836556fe48e5b683f495033a. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0840cd11-639a-4401-a2a9-239bf4cf70fc.json and https://artists.proofprofile.net/proofs/artist/0840cd11-639a-4401-a2a9-239bf4cf70fc.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 0xf2e1ab1f88a3869331abc4e574ff10eb7cd8a8e92a3ebe8351e512e6582d551c. 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/QZES92309422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f680d0d246e0e6eac2b392de65457db92235559b313559b27d3b0b1f57659c1. 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/QZHNA2294062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531483e1dc692e68e9a06e741a6a4f73f1f9635c0116c920afea98f846fa6acc. 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/QZS642370559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598d1736bd21912480a089fe0faedf72c8a40a35447c82ad6dad8ec2f4eea3a9. 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/ESA012004332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b6d8153f3fd3ec92161d46721a94bc250b93024f82362f986b21186f86ba1d. 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/ES61A1600629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e419205af49cbb0745d9344756b7994ef3aa5035c63bbed68ea8e9a526f270f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMEZE1948769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1066ae02b1fcbf20202e0600a4eee80a9d8c0c29f206c8f3e9b81b20deeabfc4. 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/QMEZE1948815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08af45ae63f27e472cd22d2e2143d2825f17adfb6d64d891a01fffb8f4cd2c08. 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/FR5R00903720.
Stuntin Like My Daddy (feat. Angelica Salem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cd3e0eae4b914d82930b4a41f425007fba451b09a18a26656c38ebda9d5fbf. 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/FR5R00903737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7119f7c5a46230e837d297e19b991cd8208b92794c3bb5dc268a93fe1e14ea92. 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/FR5R00903721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf4e4a781ac0aa9e6ae7603d06a4aa7dbba6e327fdb3b61fc242c6eb10953f0. 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/FR5R00903738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6144b54de394d76eaaea7ece113f2d12b309f0a313bda87e24e306ea8b2ee070. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FR5R00903722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3bec71c0ac0deddc49348486603e8c1361d8664d876ae9f2c5dac57ba3849e. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FR5R00903723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307adec755b7cdf3a5b7172fc5e4cead7dab70d10596ec5c0123f52f488b803e. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/FR5R00903740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef09fea8fc7310c9c85d4988c446eff3432e55217e1a8a56aee02746f5babf2. 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/FR5R00903724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf53fb2eddc13b4d8d9c2ad3106231c4d256aa88d635a470f4adaca1a719a552. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FR5R00903741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1141aaba04ec87d033c3a1d11416d6095967731dcb4b5acc1a41a65eefb177b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FR5R00903725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9283c13f28b8550195f440b00df517c741f9fc5c71934828cb4c9b885139b8b0. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/FR5R00903742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c4986d5a3d3be322bf880670837fd060ab90be6c680231aa8b06573308df5f. 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/FR5R00903726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131d3890f1b3aa3ddccc23d7271be7bfdebaac151b1b858e5097ce283cf28705. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/FR5R00903728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71176d6426fd1c20e768ef69c919386da7535d1e3a064f9ef1013acce8de9f0. 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/FR5R00903745.
Trap N Roll (feat. Waka Flocka Flame & Angelica Salem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb976efc1e4ced10ea5bdf1b29fa77f72c06dabee6becb93f95ce628631f92d02. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FR5R00903729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eddf68f754ae5f79b7734c3f6fe2bebc2cb2e17b3b228d6f77379f030a90b19. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/FR5R00903747.
Pop Ya Belly Ring (feat. Uncle Murda & Hannah Eggen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71529f640b2c243fc8a24deb676a694ce74be92e03b5df109874a2bf6311a6c. 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/FR5R00903731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147bb57a550d71fec4be037956f38f1f10f9ea2985869c4ed3cb107dda0c4aa1. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/FR5R00903732.
April Showers (feat. Troy Ave & Sedeck Jean)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72fd16367d745c13c54e27c456d64bd56b08b059c1c7b1e933f849212d02711. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FR5R00903733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5010680de3e78d6e8fb95264e373ccd1b4f2cab7b51ec60e1271933ea2368b69. 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/FR5R00903734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e0e65085bd2b9d0ab64b052e967d64af11009fcc7d41cfb56bc4f07a3ae6fd. 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/FR5R00903735.
I Wish It Was Music (feat. T.I. & Trae The Truth)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79bb0f7568fb2c06b00b4d9f5ef6bd596bf70187204e6676d9a15e6490ee3cb0. 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/FR5R00903736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96634d4643816bf3a410aa873b291062aab3ed395aac1120055389eb80a2863. 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/QZES62283621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd4d38f000e58cb1c1992696e29460e41118cbf3b0819932533a2224c99218d. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QZES62283622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe660337113b8f9edc925f1db0b72782897e28c4fa630e03def0e45c395b034b4. 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/QZES62283623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c07dcf42138179fff737b8f6d9edd810b06e89c7aaa255f3f163164deca5cc. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZES62283624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c49370b2125d149faa16a356874fdcbd1c63a8e99dd29643c8d53fc2355115b. 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/QZES62283625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bc20abb62020f5245d2140445bec3f0f7b4e1ee610dd1ee527cfad14d3b961. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZHZ31961484.