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 0xd746415a651233831c7f51996a461055e2a63ebaa529c0e901e0b77e456973ed. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c75ba7f-fd43-4647-8909-6dc872d4738b.json and https://artists.proofprofile.net/proofs/artist/7c75ba7f-fd43-4647-8909-6dc872d4738b.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 0xfc79a4e7543a71365ebafa5127ab1fe7a4f5f88f9fcddbbb3855acd4e3b24afc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLH2E2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b660c477d6f893ef9f4d201839cdeab34d91df7ab65bc43b59d944cc2ed5d2. 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/NLH2E2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8e899b68cd8d7bcc13b49a3788f3c6647aaec7a9ffad295cc870f37e3aa8e8. 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/NLH2E2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a557a71f728c4d018aaf145eb156c5cc04f09280c4a9ea0effc425fb716108a. 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/NLH2E2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a16f90fd31bcf155ce6668095c3dd796cafb1d3572fd0fe70f7b661034eb8b5. 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/NLH2E2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466f526d0e0e2a8f949a50d297db643303f3ebe59fa05427f93ddb9b3f4f5bae. 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/NLH2E2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad81389244fbcc808d652253e5d27362d507ac93686d56d68011baced3d784d. 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/NLH2E2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf054c69879380034a3bf85253ae4ea69fb0a74da124ad77bee97634a5cc2c0. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/NLH2E2100002.
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 0xa9a809bc54b6748d1b6af728fc225ef5017a9a72f34aadc7f8aecd24b344f00c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLH2E2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a5a6ae158e51aca94601bde10ea5c877534e88aaf340fa83c8c1f86749751b. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/NLH2E2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518178132decd078e7e5dbc8d2bbd2a89b8ce1c973710a21debfd8d8333cd6dd. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/NLH2E2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23744aece77b31b993589d696542135bf871af31f61a459c55bc4f92d602d787. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/NLH2E2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450c24761a6bbf94fe12be4a20ba0207c30ba4cd9a9d412de9ddf26feb627d3e. 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/NLH2E1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805b9bda3bf6bef1455536a2ae6849b57649c5453999b14f4a7af4e8e5c6e6fc. 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/NLH2E2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b860eee41e63ddeab82beef17df74513e9c058ffe2e2e7ff2b68e73861057e6. 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/NLH2E2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7434fec2858ba885b9e1fdf7bb88cd1e060952b5f5285eb3ae96d53991fddb7f. 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/NLH2E2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcce4705c34ec73aad4552c339b2cc72b86f55cc4a0445fe811e31512c57efdc. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/NLH2E2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642a70f6321028a16e5370215957008ea30c5af76107a2c61db2271a2d48a6d7. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/NLH2E2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ca1f3bb7b4ae6712a5d096a8afdd9792ce706cacc564b98a999c7305e1b69a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLH2E2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f40fe8371bd9dfa6f12fa621d312111701229c57693e3942eaeffac5b9f9f85. 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/NLH2E1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7a4b2e4641bbe885783c70c1b01e06efa7f37436aabaebd81ca79616a2d499. 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/NLH2E1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf81fe14819770bf072d46486beaa903101a67c0d613b22e1eb7bf1ffad05672. 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/NLH2E1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716c30d9bbb6a49977e37fc16b75a31771321a1d341fdba5f9673be511489f30. 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/NLH2E1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab86f20eb4357e5fa2d1de82082aff8434afb0a718383d905375b9f10012257. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLH2E1500005.
Kiki Met Band in De Kleine Komedie (Live)
De wereld is weer leeg (Live in De Kleine Komedie)
Wie wil je zijn (Live in De Kleine Komedie)
Wat als dit het is (Live in De Kleine Komedie)
Precies waar ik moet zijn (Live in De Kleine Komedie)
Als ik wacht (Live in De Kleine Komedie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea065af566e1486a9574eca619fc20a357ee073912f13c2b230b160ffa14c935. 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/TCAEO1937334.