1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc02bf3d9856597b29c44a6383799e2f48fbc1dbed28312dd970ce4dcdff687cd. 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/d8a2d505-f59d-4d57-87f4-897346432414.json and https://artists.proofprofile.net/proofs/artist/d8a2d505-f59d-4d57-87f4-897346432414.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hochzeitstänze Vol. 1 (Einfache Eröffnungstänze Für Den Schönsten Tag Im Leben)
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 → block OTSBitcoinBlock must exist at that height 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 0x56487db819572783e1c946c3ad295ef2b034e9ff1a91094afb50226f0bad8178. 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/DEMZ11000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e4a2504761ab5fe53ee1e3c91064107d207ba815faeb70ad4e75ff4834a1d3. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/DEMZ11000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45107db2747b0151b074cf7ac0215806c927cb8adb7651100c76641b521eef33. 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/DEMZ11000008.
Wedding Dances (A Selection of Wedding Opening Dances)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda3a347adc74cf7e75be778496cf20eefdd14e02d583da82e1c9acf9e4271d2. 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/DEMZ11000090.
Hochzeitswalzer (Die besten Brauttänze aus Pop und Klassik)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda3a347adc74cf7e75be778496cf20eefdd14e02d583da82e1c9acf9e4271d2. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMZ11000090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56487db819572783e1c946c3ad295ef2b034e9ff1a91094afb50226f0bad8178. 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/DEMZ11000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28eddaf03a9fe17821a0361ea621255e77c7db39425742cf2eb94fe511ed1c8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEMZ11000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf82aad664985d938377a0a140793fcb307764178e6c124989af42a47dc85d4. Chain 2 (Bitcoin): anchored in block 956809 (2026-07-05T17:21:05Z), 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/DEMZ11000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3005367b63776257bf13f12bbd6930e37083cf65aed3afd7d2bab12f58286ca0. 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/DEMZ11000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bc6bbfeebcb1f6f345662afa10d38774db82eeb0cbcb7d274c288cc23116d8. 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/DEMZ11000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668f5649f68ff8716308d4cb9a560ffbac734028b60ac1e04dbcfe7f5b8cbe0b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEMZ11000015.
Hochzeitslieder - 20 Walzer für den Eröffnungstanz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2335b8aa05ff70ad276de47499720e73b5c18e115e01696c17dc1b877b93b0ba. 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/DEMZ11700065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e9dcd626cc1d895897e3db1d740279026bb1a306ed84bfda92bbc05d7923ca. 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/DEMZ11700076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156ead67410dc3f71249c449a86f162bb0fb390c4ab88a96d854b63263a7675e. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:42:40Z), 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/DEMZ11700079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3005367b63776257bf13f12bbd6930e37083cf65aed3afd7d2bab12f58286ca0. 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/DEMZ11000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03439307c54e82b1fc06290274c1f09cb16dcf7fdc4b31033af4793117b5ea6. 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/DEMZ11000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28eddaf03a9fe17821a0361ea621255e77c7db39425742cf2eb94fe511ed1c8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEMZ11000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bc6bbfeebcb1f6f345662afa10d38774db82eeb0cbcb7d274c288cc23116d8. 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/DEMZ11000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bbce3d341d858bc9fe4cfe1f05565ce0bfd19b2d6b183c0212101d1d54d052. 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/DEMZ11700071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6911336af316eea4791c355638cd8ca90b078df04036f863d6d1ddb0744824eb. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMZ11000098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e9dcd626cc1d895897e3db1d740279026bb1a306ed84bfda92bbc05d7923ca. 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/DEMZ11700076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56487db819572783e1c946c3ad295ef2b034e9ff1a91094afb50226f0bad8178. 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/DEMZ11000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c7a138520e480bd6bab92e8096e54e02f14c74646fa6f7efe55d76269dd0f1. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMZ11000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd02c3dacd19cdd456dd74c2fd2150e4126bfd3303d4799d621a8086396a9c9a. 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/DEMZ11000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45107db2747b0151b074cf7ac0215806c927cb8adb7651100c76641b521eef33. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMZ11000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5f34ceb8dcfabdd5a66395eaf9acaa6373e7157c8ab6a02da54b17cf577ad5. 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/DEMZ11000092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255670e7105ab920a713a8e8f3070ffe55f5f4b7f0e35ce4e104c784d4c6f3f7. 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/DEMZ11000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf82aad664985d938377a0a140793fcb307764178e6c124989af42a47dc85d4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEMZ11000094.