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 0xb04f9f3defdb5279420a7ced10ba4367d7f77d4ef2396d0b33e37d9bb3cc53ef. 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/d0d8474b-a5c8-4fa4-ae42-757f87731fbb.json and https://artists.proofprofile.net/proofs/artist/d0d8474b-a5c8-4fa4-ae42-757f87731fbb.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 0xbb9eff854e4ab0a6894a677f3d83aed65e003067d38e5f7ab8c02266f5196d90. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBSMU5700932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa6ab43b0a8f93058f98f0b7f8acd1271cff16777c9c677cd93a31785b0e1fe. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:04:38Z), 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/GBSMU5700940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ad17d623719df6e433a0616ace69ccb8edd6f2033b3bebd4e9f4766ccbc3e4. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/GBSMU5700984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ed11583d7d5b4e8e13765838e9a261e6c84178725101176f58579830846047. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:42:22Z), 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/GBSMU5700987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e799e8e25db4125ebe902223f2c7517b8f85efb98d60ca04ac4653255782b3b. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:21:41Z), 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/GBSMU5700989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd556060f1000978e5c32661a764bb81f558b31eaad632466ca5fe5efc9fa0f6a. 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/GBSMU5700990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e700f33fd3a896e57c37af9688f73f4ecec6b5c18da0486d94e16a663be221. 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/GBSMU5700991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8019717365452a171cf6925aa9cafeb1916d22c37e40fe89a5146276a10805. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:02:04Z), 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/GBSMU5700992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19e1f201f18a01e701fab6893367406a3d934fe1e93ceab1fa0c28460f2d609. 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/GBSMU5700993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a36ad4a29f48cbf3e75b78a4d2623cbc731c2884a0f4a3ca9f7fed9bc007fed. 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/GBSMU5700998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0541bda3667b00d97c0ed6294088319262a6b070ef2380ea7ea508abea21d1a1. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBSMU5701028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c38c4f4b33b3a907163feba8866113bfbd57db5e50a51ca1237cd7dd13f041. 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/GBSMU5701037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1113f4065d8df502fda5b431eed7561480414e422b26b48b819f0625fd4e165. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:09:23Z), 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/GBSMU5701039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3dbcdc8afa5cb3610551fd26acecfad6fc69e17de76f9b2e98438ddfbe2019. 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/GBSMU5701041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e49d7abc9c7f93acadf8cc52d63cb6da18e85d6156e66ba866f41fa143d981. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:30:39Z), 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/GBSMU5701067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82caa792a08cac0e885e4cf5f05a9c7988f6b12a9cebff51def78a0b1118028. 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/GBSMU5701073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f4b24ad6cb897159e3bb204f5ead34386eca950b18e9af369539d4776cd96b. 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/GBSMU5701074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f44116891859346c6a92472e221d75eeafc9284a580b71c25a7fbd9ae4fd95. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:24:17Z), 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/GBSMU5701075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63416c629a689e28d5b423c1fe7d6a8bac5ee6d226d558e2965794512cbb2d25. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:58:33Z), 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/GBSMU5701076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9018ca78b9c8a697b7f70cc5e8ff2b994140e73d9d9ddf62718bb4b65385666. 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/GBSMU5703984.
The Dollhouse (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed38330c0b04f7356ec061f7a6e827dac333d4806a20304067a3643ed580527. 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/GBSMU8849439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe966a28d453ab942fbf2a6571be140e71522db61cd58f8a79f850e98b0ec7b7f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/GBSMU8849444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8372a8cd60ecdcf4be676593ea6b19552d7f3179c49032075381ac307946bea5. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:09:17Z), 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/GBSMU8849450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b7761258cc98087ef50d825437557915cee3e82c8330c265090da7c27dc0b6. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:19:02Z), 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/GBSMU8849520.