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 0xc1733aaaa3425413f23637738a9e71028d9729f71e490b7c9c6e55b30e90d884. 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/8388a477-86b7-489d-aebe-56768319886f.json and https://artists.proofprofile.net/proofs/artist/8388a477-86b7-489d-aebe-56768319886f.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 0x03840c5d8525184da648c798533a93bc38604438ee9b762f8c63a2bd404d344a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USMC19701085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506089b143fdcf5df9df7efc2c8c4e209d60e6998a5907a92124c8ce29008daa. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/USMC19701087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19af3a97d96c8dca7fb577d52420e0385ac802d3756b40dda4798fcac4b875b5. 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/USMC19701092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c0891447e038397d3d73be5fea220d143d7994c183c0ae2b056fa8da6d78cb. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USMC19701093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6f67b634cfcaa56222ea44eec317b16d6ee4e23a6a06a4340eaec39bd88c5f. 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/USBL50600404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5f5805fd80afadfb6d087d390310a14d3ceebbf7971d5e8b961ba2ed28099c. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), 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/USBL50600405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e56a25898614f1f9870bcf7e136616d2b58ba90fdd7e2aa012619cd2025671. 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/USBL50600407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a9b1ba66865ebd8393793efbb8c2e426bfb6c68ceb83864e006cc1635f08d7. 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/USBL50600410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa95e8fc1b57bb9c8bacfbe7ebd131f12c9566e692346da468cc14fbf0bb8ad1. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/USBL50600411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355499e9ae88b41be9bbf495dd4f7f15071ff38cf8066b8e414c8a8348545697. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USBL50600503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673020cfef54fa824ec1656b82d4cb5ab44d2b2fb96263fb510f5d919d212e00. 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/USBL50600504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecac72b6a4e0eb6f9940f3345330477eb751f464832a431be5c91edf16bee485. 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/USBL50600505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81088e622943e9867edbe20dde2bfd1cf3ea6497b4d00fecd78b32f7da11b216. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USBL50600506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e9419d8fcc4cb3eee7185e9286d73e5cf40c499042512727bc528811729660. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/USBL50600507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7686f140a20c32ab995df2579dc4cd5e841a048c32721919eb812ffe360c04a5. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/USBL50600508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97636c4ea4da6928dec41ebdaab8cc1c19781e983f45c0d0e3f8a1e2b269ec8f. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USBL50600509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7486b875eff93e87cf1ec6231dd4d669b8ee3a9b5bad4d325270ab682d078f. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/USBL50600510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701fe211e821e4db5f6fbbaca5488d278823a58a636d08c36e6973a1bd448e48. 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/USBL50600511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38b453d42e0102456d627e5143e72d80062fbe7bff449c8efb6022ba8d715b7. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/USBL50600303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7e8196fb44a78bd3da9bfdd426f0d46a8912d0b255c1ffc6430dc8b5ad847e. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USBL50600304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173ac84dee97813645580d2e25f41cc7ef54abf4a00099b6c2881d5ca248f529. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USBL50600306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739719d42803e17b776dc0ebaa910e9c4256cf8a04fa0d540debcf5b5f57a939. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USBL50600307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2b3c655842d7626c7def2d6f3d701e0713c0eeab2e56e9546fc621da8dd843. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USBL50600309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7c8dec6c0d048db79a01acebf8cdf2b9db7964ebc9c5f58580de91bc2be438. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USBL50600310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee23fbc1a04a8284eb78cbae5c4fa2bb92c7e3402152a6ba83a5a1e7a8fb1cf7. 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/USBL50600311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c724d27ca6425e4830421fc1a87cc8fbaaca70f08cbe49ecf00f4460a8821f2. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/USBL50600312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33868079245714b2737764e8d0073d688f6432fc8303f49f6053c2a99da51319. 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/USBL50700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378fa1733ff3effc3c78d50d8a1a34a46e89cd40f67b85f5ed4a70963d1a73e0. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USBL50700203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fda6723cb7bcd7261eb845fad2345ac0237332aeee5d17b63dc15a1221947fa. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/USBL50700204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305a16cc6e02ce2fe03251ede1a5d97b21860c2ea134ef315964bb348c1062e5. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USBL50700206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a123a59834c17eaa5d3236a9a07946ae9dbce58f6ac69ade8c9374371ab1ee. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USBL50700207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a38f9c5f4f03b33fe7c3a7e90f432168c4a602010b22ec28d2fd788235c694. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USBL50700208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa893ea16b22c0e5f26516a9d415fb5056ef16ac3d0ecb9d330e520a13f0d4e2. 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/USBL50700211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb373a71497ef73818e93fe4a6c368bccee1eb8a15eaaad69766e9a8a129945cb. 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/USBL50800701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37fdb142920a0ab43367856f9aa145d7a8a987ba956108803a2b7b1524d6787. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/USBL50800702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ac277da46350d5883436ed753334feb6665028611b01aae4c4920ad19962ff. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/USBL50800703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9c14baf912b48ca769931c4b5f3fb96b65137ad72177650e928029c13bcb73. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USBL50800705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda43ab225c26512734815273550fa94fd120cd50a9585b377351763ebf0cc783. 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/USBL50800706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84faf6336ae10dd83bf4f8afd4dc1f11de081daa2bdd278a25ec76668b991ad. 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/USBL50800708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c60e8bef9bfdc5d52ab5faddcf8f87d036fb68e6a1d4d1cbd7a51e8a00cbee1. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USBL50800709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10179f8c1ef0109d6d307c92abbf2738f13a4253fbeb3990a1b5795c24df04c9. 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/USBL50800710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3214ebd183450ae9b6346c3157352eb9d983aa98565a0705eaa75b4d4611be3. 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/USBL50800711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb21fe535c5e63390820d0860070ec99bc9b2b99f83d87bafd22ea15a33d4a49. 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/USBL50900802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08abca37537f04d2acd05dff1e7fef12155af398c2d0fcb5cbe8a5dc285e1f6. 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/USBL50900803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228d781777f70209b4ea1436b1edf06c0ed776811d20cd66cf742d8c51383efc. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/USBL50900804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b20d4fc7d9ce5b0602b6588018b3e18d2947e3d4850a8455b20d22131508a5. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/USBL50900807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374331875af2551dd7d14c7b4f9870068a0143d1a8920ee63d1c53a0ca735ee1. 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/USBL50900808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75981bc16f5a427b914e889c70f9bfe1b4bfc2f7c8f3bd3e0fa09775c7ed3c9. 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/USBL50900809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a4e8a7ab7b1c3b3038946f85ea7ddd817abf4163cf55b1793910e0699cc27d. 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/USBL51200903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967b0f3bf0eff7a2fe9ae9afdc041b6e3804359f70a39438f87ebe1e124e7afb. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USBL51200907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99c83081dcf42d06ee864e81fcdc480ef2da359d7c16b63573bbd048b49ba71. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/USBL51200908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f02782c607230b5d12069e64d4352023ce381f9788a8860955fd700d404c1b. 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/USBL51200909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069e5304ed4e334377d83159364186963f6ad405abb7ceb1f1beb4c67c037f43. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/USBL51200910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c608ce3336e34fc2f696ead7d9ca74b7fd400550c707d531766b19c3622d34. 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/USBL51200911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1539f529da7e763e84b50e2181883bbb723d056c8e077236689c60c5e5878c6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USG9K1900303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a250c9b8d60d522aabf050016dc8f4eb92f7d9af3607df71446f6609e071e1. 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/USG9K1900304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4eb7128b2dcb954fc3fca5cc78a8a2589840d5b9e28647eff134440117cf68. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USG9K1900307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8ee76f9b683564a92ae57047d8b37e58901d59a5d6478810dd1a099c4e2bc5. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USG9K1900308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d11f56ab76c46f88cdecdcd08ab9a93b6a01e3bdbf450df6ba1235d578f4837. 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/USG9K1900309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb720cdfd8e62356ef75d24014f2fddc62d1f92dd2a9cbe02dcb29f377346e169. 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/USG9K1900310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3deb6a00063cf26f71c2c8ab3b148964373bb413cd59658974ef2b6618b67198. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-02T22:12:38Z), 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/USG9K1900311.
In Case You Missed It: 15 Years of Dualtone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f36087f2b653bf0040beb83ae8a845d09c62db407f5cc38652f6e8f186e084. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USDMG1677717.