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 0x3c7329e99d876ce1a1ffaab6255c4dd1868184e6f2774627d169b2644362b37c. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc6fb0c9-70df-4595-934e-fa09e83d810e.json and https://artists.proofprofile.net/proofs/artist/cc6fb0c9-70df-4595-934e-fa09e83d810e.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 0x71008bb868123930997fe2fae343c72b4dbdbb2149e95861ad909daddbc8602f. 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/USHM92463271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2ce2382e71c1890817bf08e5b2dd8fff6e3ec22a382848e155cd0d994ad14f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USHM92463272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7415869545f3f0729f6ea585888f5ff97d9c6931846a81931479885f65c67d62. 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/USHM92463273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897ee0dfefeef3b04048b950ad3ad4a6506f9a3381d5c1231a8f0dc8bf5b15c7. 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/USHM92463274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd020c937e9fbeeff214a6349f1415eb70f4cf1e8cc63a2cd3f2c05113a83f3. 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/USHM92463275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9185cc6cd9f5bedd984ec68382894dfdaa631bd0b99de5a76e3c7812473b19af. 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/USHM92463276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccf159aba8b93af54da092716a1e006ea9cf840b03234bcb27b533c903329ad. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USHM92463277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe90225311c2b424e7be99ee3f5aaa6a61abe71c7724474379e51ef63a814a1. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USHM92463278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bebe2d9418445f461d517a522e4c2ac9cd672a91ac1317dc5ce96901ff9a077. 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/USHM92463279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81867d5d32f4b17f6e54b74653c2e50f66c3e8c9e74b4c2ff89b312780b24549. 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/USHM92463280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe9545a26cb0a50d24278f23d964b712a524a40a66a82195d96562f236592d0. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/USHM92463281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd855f4d46f483b2ec96518460c8b01f0e35a4bcb3bc877caa92dd0975cfb80. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USHM92463282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d4b13c776208aea2b60549cc4d922b0e6a016d4ff42115f994e301dc9b2481. 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/USHM92463283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad4455f77ec2210db7c0758906ac045c5c1a76d0ac57ccddee09d6ba39c1582. 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/USHM92463284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ba4272365b7cfcda89fef94724c0941fe0cb9199cd7bd4a874a11b105eb0cc. 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/USX9P2018453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df96a9e4dd201214e8ce5c563e9f7c4806d80113e40a7a058956de127953038. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USX9P2018454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd53129e707c9d149714a70ea4513d2cf082141462da467a944e8976949b08d. 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/USX9P2018455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d62f2f0391fb5c9c83e0554548da800722aa8914a742b1cde21313c071b8ff. 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/USX9P2018457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb24405c6d3e5588bca34d423165c0a47ca6975e52013958a681aab5c00753c1. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/USX9P2018458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df2b006515fabeabc8ca1875bd60f71d66797ae22d3c308632adef59469f3de. 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/USX9P2018460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dff6cfb52efedf4c704babd142ecd826e7235f1c8dc14ad9fb958c7adcbbb9. 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/USX9P2018461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e50aabfb19d3fe7ca9a5df7c58c647a387e5557ffdd2a45494d1cd086af991. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/USX9P2018462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f617d500946ff8b189bbec4f56c6f0145637fca96f4b7a5a70ed7e9be499862. 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/USX9P2018464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59becbb25d7f29872a243112fbc03dec97a40fe23204ab40e6a457f54474169. 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/USX9P2018465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141648a1395e1bf2847600bd903ef5c015925c0930c22a36f50ea8e734fc02f7. 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/USX9P2018468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dffaa1fcf3b9cadb6dbcacf3f043a810a9a1a4b69955774c2502547ac6aecda. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USHM21509181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438863f08699b80fdada21601c9b7502f8fea732270a73bffb96498e83f55f71. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USHM21509182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4c8d4be6c225ce988391e9ca6fd9416ec747d5dde646f0d9664cb5f37666cd. 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/USHM21509183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f995729346e96e524590221957185a85f9349a1a764041da52b30004b52987. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/USHM21509184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecb3a296c377e47faed8b9620ec0afbc0d8bb5f193a442b1f2c5aaa95eeb5e6. 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/USHM21509185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5bde460e831f14db3828560e4aba99427441b93ebe0d20c3d5ca891aec972a. 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/USHM21509186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe107dcf3a8d43799dd7dd27ad5b6104721a246b7700e009bc99e217962b84aaa. 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/USHM21509187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc5e7546ac84d69c0f8f7abbc0cca6b4eb7ce5fbb64d752fe36f10e42725239. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USHM21509188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cb007e348e14a0e947b6e8b35e68b7e4d353a59be066986cad98eecbc7ae00. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USHM21509189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d8cc9ee6fe7e11138bb10f7eed870dd54e2b461145032f0d1b1260061ad7ee. 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/USHM21509190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906fd6c523ec1b4f0aaa87328e44abbb0af6a6ae0d8fcc0f259aae3d420bc871. 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/USHM21509191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651c4ed8206bc38cf906e48daf6c420cb7640a456e9de995e15fb72d63e53cbc. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USHM21509192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc660698ac126b3686c7e0be9d23f5710f24bdb90b8a0a294d27f6b921ebbe74a. 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/USHM21509193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7810c6647de575cd13bae38b57c3e8151c3c1b817ef041d375f00bb30b2b12c. 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/USDY41594318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a93db4ca2734fa3c013050cee18b80de07666f254a7fdab7868a897108f856d. 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/USDY41594319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0e10699504fabe4c5742ae42694a420518348405c369d26531aa159e174119. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USDY41594320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f7202ab4477c007784cd0a9264f8b5a1d56d6e713c4212362e9d1e57fdcb17. 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/USDY41594321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84dcdcbb8ec5d71dcaf53b9c2ea6f60ee4b38992f0d0b63af5ee8afb3fbac718. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USDY41594322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80ccad24e8213fd2a984b6830157edab9b471b6d2af20e639d8a2a4ea68947b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USDY41594324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a7590c0b6b3612bccefb175d006e65461cf42e40e50f174606cda6304a7768. 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/USDY41594325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1796adae31359eeb94f34e5a77c134e75c7763a0feab149cae52222927b5dda7. 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/USDY41594327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8243adaef7f22c52a548890f837efd4d8d1e69d1b73c310618d35a6ec9f12bf9. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USDY41594329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd770216f65f68e1f3aacbfadab5467d01f60a4c6974021098c80477cba9a9c2. 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/USDY41594331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c9bcbf8bef7582ccbe2bb7f4a6bc0e500f4ac399134515fd2b1be9acc3f350. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/US9939911321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dd2d73e721303940099274766f2bc23fed8068e41101d90160833f9893b3bd. 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/US9939911322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba21e1484e9d5062b95783a7587f1005f566a3914c3643cd8ac2dc092560d74d. 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/US9939911327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe801e39463c061f81f159a405d49cab5c8fcdb97639de341cc4ecda490f9f33c. 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/US9939911330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65629d4f780c6f1dae13a4e1e328b420ff892a1a9583eca36afaac2142a8f82c. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/US9939911331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bb6014ed677652f5700dce69fae9502f6736e492fa5ecb6e6d1c664692576d. 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/US9939911332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf080da07f08bc3648f87984782da272548db929402e45bfada5a5e98d19550. 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/US9931010154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830ed1e8f6582a841e737b2c55a99523055030b8c9be8b7603702c07c62afcdc. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/US9931010155.
Call of the Cossacks: I. Procession of the Tartars
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447888a2697f2d6f9cda13e72bd0e3a5dbda34f676f1dcc453eea3bbe61a1690. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/US9931010156.
Call of the Cossacks: II. Doyle's Lament
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74b83fe5d26ad897e8ae3886d2161c0ae8dc16841c82d22860fe2b2d735749e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US9931010157.
Call of the Cossacks: III. Cossack Fire Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b762a943cb8c2dcc3579207bf87c3ae2e4de246be5d50f20de8d9cead9990e. 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/US9931010158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2dd212f9d44745dc28f3c129b2f6dc42bc89faa2a6800d2f2b3e1679120f92. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/US9931010159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b31f72f44dac9875ff8d2aa7110375f8d487689a162d9cc86e57fb8d5f4fa7e. 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/US9931010160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a85b9a101fc7e6fdf8444bee1d5a14c97921c363a0cc15c9d229e292eaf83f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US9931010161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54598be39de0a04e07ec696a5b2bd09e8b41f7e9f969b7fc5b58d5dcfedba7a. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/US9931010162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2a223fedf78e9a46505e6715c63d38cebf92dd462a9edf054f6f4d4e940e3a. 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/US9931010164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfa2693207eedeec108b3826340450a86ad92de0446ac510caa9bd767f6a46b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/US9931010165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0839c5d1541999da8008cdf77787dd35993bccbfb1b4fc355600dd871c1c5905. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/US9931010166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2609ddd933ce69a50d55f44d7cf274e97248a94ffdc66b384c565f5d07fa791. 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/US9931010168.