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 0x8d055870fe0ce5874bb7385041d3ca457756bdccd7ecba601c2e8c0b94cd9ea1. Chain 2 (Bitcoin): anchored in block 953719 (2026-06-15T01:07:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89fe0424-e591-47a8-af41-7af41910a150.json and https://artists.proofprofile.net/proofs/artist/89fe0424-e591-47a8-af41-7af41910a150.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 0x4f28757026cab20eed4fdcc39856b465fe4e54a79c49b94da37dda58ba2956cf. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZES82075093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31dd532ed7b7bab361e0f291ea2a3645bf6cac0763472e8df5e14795901216f4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNA2059981.
Grizzly Chills (Grizzly Hills Lo-Fi Remix)
Grizzly Chills - Grizzly Hills Lo-Fi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e5ce13cf528fe8b8607dfdf61d709262d3a7abe9f7f1f407fbf94bc02ba706. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZFYW2110899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aeab4db7f511dd9b2f734d56fd564cc437b948c10800907af788eba8e213b63. 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/QZES52120131.
Lament Of The Highborne (Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953fe387a6ce2aa1f726e8119eaecf81d905fd3aaef6aae88480552d66615f66. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZHN42140774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94185f26b81b4b9ab523bc7546d71fadcbdd7346496eb0ea3cee1a1cd9876ee6. 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/QZHN42140775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ec6cc9a3cfe6326c05d9675d00b02a288db83091384e4aced54af0ea34e6f1. 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/QZK6G2029671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57b0807c86c66e263a65085b18172ca2c7247d37add1cbf775a06c934e4653b. 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/QZK6G2029668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2a741a1ddc944429078ea502234d4ac00a05d25622775ef0325ad536492344. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2051181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fbd3ded4b684753f26cbc3b0596b96634014073de22b8850382a064039ec1b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZK6G2029669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d3f89f3d95a4cb88ea1e94fe396a69ad310568e893afaabeb24193ccdf8c9f. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/QZK6G2029670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdcbfb5dc745b8338b478dd38894366c591d0f2dfa2cb98662944c8ad2c71d0. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZHNA2059973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84538b6b8ff1c8ed953cbbf6e58a8a50e6f9e9f09d1441ca763ee50af5fd6029. 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/QZHNC2026261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d83abe0fdfcba1ce95ef9d3f45ee87333ab614295a8fde23a34977d8af54fd. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZK6Q2020312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929d5b440f54015b9d5b5c937a13e579c3c46398a075cd587326458d6cc6fdce. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/QZK6G2029672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc035e48e22b0af8341610bf2dc1ff72f935722f294d36f80090e5ad2d9941c4d. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/QZHN42140776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88a21c051a6860b3221535f93e8a36f08c1d53e028dd17ebb1402661a768d58. 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/QZK6G2029673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f83c6519722dd80fcdac2ece3b8a912beb160d918784c2e7dd1a7bfa77ff383. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6G2029674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3cd5761a6ee9025b72ef315a38c18217fe31ff7110890447b9edb85e553e4b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZNWW2329614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e337e805e4ea77c756b2c4d6b1210fd0064d75d01186a2a0a5971388ab65af. 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/QZDA52165087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa727481d9a1b6257ea153ac80ea94f717c06bc9ccbf3920ec13dec0cc9eca8d. 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/QZFZ62416474.
Take Me Home, Classic Roads: (Warcraft Parody)
The Underground (Live At Twitchcon Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3d606ef6e25a6aa07a6e26b0d37f803dd3e46e78d29c67c35aa940ca211d55. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZFYZ2198159.