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 0x5c9f0c4181f0b11b9bd044f4ccfb29a6aca88894a08b565ad94c6fccb65dbb9c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fed07f1c-c3ed-4b94-8d23-c68606da8b6e.json and https://artists.proofprofile.net/proofs/artist/fed07f1c-c3ed-4b94-8d23-c68606da8b6e.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 0x91060bebe97eb6b0f35740fd4f8380fcc12731b653612647aeb84c442666009f. 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/USUYG1109767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6981cec95967ed2881ecac871ac37bcebf73bddeba47cde960d58e3ffde56444. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:31:59Z), 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/USUYG1109769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9d17da87f30ea3dd90579e926d0faf3ad135e6bd89fea5aea28a68ef54bd90. 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/USUYG1109772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b177052cd1f5004242d13fc22faf31405bbd06d44824d16deccdd23a42fba5. 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/USUYG1109815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bace52b04b6009e9c99b9515119c7df573893f9a5264bd6992595bcb3af4d84. 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/USUYG1115034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb873395c33868497c596a0e4236302281eeb5bf808458b2c192e588a1614bead. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USUYG1115035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa124d1717df1296a03b8fcc264ea27d87b28737f5eac38a8b950320b2cf0c52c. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USAE81600680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780117f68a1f573aef94d8f295461e54d98060d3d4c444810fba4e549b4dd4eb. 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/USAE81600682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b35a50300c3d6d1419836ac3a25a2c4a1717a5b6a2229f63ba94f05e5c4b997. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-20T00:03:29Z), 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/USAE81600684.
Goin' Viral (feat. Boosie & Kodak Black)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90dea76a948d88a1bacd7c81b5af43d9ea42fc637a753451b6cc71c6cb6c5bc6. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/QZ9452000134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35275f70fcbf91715ca39f8748be8e825f23fdd31cbb6d7117e551a01dbe1431. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/QZ9452000136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb648e198ac8667ea3f1052134995e154268cdf6d7293590ce6e40bf1b321995. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZ9452000138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdd85503597f9519f88a1239b6f09dcafc3c757efe88adfb2fc1dc01e7801b7. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZ9452000148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608228a2376fe7f12bf34ff735d83d6b545ef3a39efda1c317d9a3bfffbac001. 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/QZ9452000149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a58b8e70d294f05c4870d333eb9d82ca7a616ff3b5d09d84abb70bed930a35. 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/USUYG1252179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6aeec1b4e8349463b1d0e1a1ad7d55af697e9f7d988396a72c7a18be332d034. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USUYG1252183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ef7cc50b606baaf1a60d3e915cf2116199f502fd4f0e62def46c889548ea49. 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/USUYG1252185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1008dad210b14c8d9bdae2d047ebd705cb49e5bc39fb6a6c762b361094c0561. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:10:49Z), 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/USUYG1252187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36658246981f86b0354b27b0f31969e5c5ff2712c6175e495d1d1d4b74b8192e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZ9452000406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04bd772891e16377dd31943222a62fffa50c587161f05affaea1e201dde10f32. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZ9452000411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8677c8c2c476d3a6222202a3510420bbe9c51184c1c61b87b43a183909fb8ef4. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:05:16Z), 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/QZ9452000422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f67467d3d9791f884be97aa750887eb9459ca9b5c77d7bc85a7734d7842d686. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZ9452005243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632c590b4d62cf5f259b8af0d8ca8196180edf94269daafe741cb6b7c59bd148. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:31:17Z), 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/QZ9452005268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b2e89960cc69c49cb7a7c2277e5ba17acb3700564217138b867e5754553273. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZ9452100425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cd10e51372f28e270ddd9fc88415e329967e3f3dbec8d2279cea753d31154d. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:01:33Z), 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/QZ9452100427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9250e3ab873e1c24e8043200ba7530b830f589a0a3ba4401b827a5328f58a74. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZ9452100430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f49dc87e81f46c25c03f0b4da7b9a6924fabb75f79ead2df7734bb53c6d9e6c. 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/QM4TW2466194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8c409fe9333d7b90e862217ffe6b0d1f6bc04de125f60be7d8613e63100aa4. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QM6N22577571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aed3a264420f5b1cf0c1ec35840b1248c3e3f7816b05c1f4fa5b434367da74c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUYG1093903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc54d2c0075560b36bb729d8074f7f65c0145caff097b209bf187ae369077fb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUYG1238770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f72f6245083a8cbce52302aa816bdffe762cc279cb758307301d4ab6d73dae6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCAFR2111579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a84cfed1d8496a948e6d7a9ed367b37fdf52595d15ba7f24ccdc298640dabd4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCADP1836859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d38e492e1ed46115ffc3e009927919c0ca8abb04eaddb058846436772582ce3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZMER2460991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e86ba792727baae46b1d1815b94118e2b7e03d2b141a443e2013b453c13d1a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZS7J2298918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a226446ae4b0c28d60d9031614f6e32692694f04c5e38124844a19530461349. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USUYG1141246.
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 0x517756ac95934b013fee99afbf05612c7f04b2f7fb15b7bcfe796c8cd26ff951. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/USUYG1132684.