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 0xab742bd221a41344ddbad9fd1037565a19e81581ce5abfd06cf607d161bd6eab. 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/9d62e038-35ea-4f7b-817f-709a924716c3.json and https://artists.proofprofile.net/proofs/artist/9d62e038-35ea-4f7b-817f-709a924716c3.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 0x629e65b2a68244a449e8ed0480c550a88ae783b0f965ed4437954e69b6992a07. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/BEWO10100060.
Luc Steeno Zingt Adamo (Limited Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b518e90efe32e1ed472391a91a1d1d910b36cae130760412f557394b06cac2. 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/BEUM71400093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b239796fcaf9e36b6d669e9de01fca0504580c3564b61b4c7cd84faee7350f2. Chain 2 (Bitcoin): anchored in block 956775 (2026-07-05T10:41:06Z), 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/BET220900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19135c67a2f4cd1bbabf5056b56ef304fc4a6c4d36be460052c5c65f61af16b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BEK011500154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1192e4cfa6b7be527d12ea7261c9ac2d254dd082c1a679484717e6cf3251f669. 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/BEY301990273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a657ac7406bd1ada340f79991c2ee2380553d8a157823b94860c3bb57149916. 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/BEY301990262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96919c6d253772885f250f48826dae020e542eaed839cc8c2df0295a6dd3801f. 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/BEY301990348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6b36133fe204a8d3ca550f854375a79b20071d8ce2a080508f6ff39976be36. 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/BEK172400006.
Als Ik Voor Jou Kon Kiezen (Uit Liefde Voor Muziek)
Van De Wereldbol (Uit Liefde Voor Muziek)
Waar Moet Ik Heen (Uit Liefde Voor Muziek)
Met Gesloten Ogen (Uit Liefde Voor Muziek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d40397c242317a5d37a6ee9e7eb88f5414dc854508ce5ac58e7a0ff97989917. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/BEG332500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564b782c4caad1abaa71f072f43786cb2851150a7749fc19eb5fb4eb526a7cc6. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/BEG332500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66511317d837a62747297762c2c0a20e03d7a5a8754b9f02dadd8bc017bba891. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/BEG332500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7caefbf7aa272c6fb14e7e6023722cc3e1380d41268fbf6dfa6e250c0a521e4. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/BEG332500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9dad5d1c865a3d3ff082d38058da415c41733818b0d0a054454b50298aa847. 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/BEG332500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962f1275006ce37377e8821c6537464e357cfbc42ce31a5b169bb4b88b0c225f. 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/BEG332500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027740974e8b8d7f4d1b10c2a48f9833c41ee1d87e3ec222bc05a652e826cff8. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/BEG332500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33bf2da601d21778aca7b6fd1f575ce586e3448fdc261e2a8395d105ba5bb046. 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/BEY302590456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741fdbddffb975bad79ca237ab529ae15cd76430cd71bfd7f1017d4eecd0d8f1. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/BEY302590457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4031b3a4fa72e594692c001172c681b4279f692d33c73a2ff92cd93f0d2e6324. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/BEY302590458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b68fbab2d6ac061806f4b4643fa53a1ee31991721de8a15198308e57b575f9b. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/BEY301990343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ac9f6e07c48e63bb09ad3e369b524eac79e56a78d441640f681cde577bf99c. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/BEY301990421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe446a5b194a1f80f46e9a44f9ca916c31164c5c7db60eeb5929283525e2bd86. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/BEY301990305.