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 0xd2c1e11d01008f73bd6081e6e5c8c9cfeafed60c7fc74be532c4e22e1199473f. 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/6c43bb82-e50f-4c95-882f-f7a8fb6ab091.json and https://artists.proofprofile.net/proofs/artist/6c43bb82-e50f-4c95-882f-f7a8fb6ab091.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lof zij Gods goedertierenheid | Vol. 8 | Mannenzang Katwijk
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 0x4e2ddbff1fff23e5117bcbf68b118c18cd1f462cc95ddc7f230d595c7cef680a. 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/NLCQ61944501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a2fa1fc2f289e38bb49884e4bd11f75fcbffc131d96f441966b08f37b0911b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NLCQ61944502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68a3fc485014958ed081810d96b0c7993b51f0ab38ec5f0eb6d059af8dfa95e. 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/NLCQ61944503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd2528c9d98f435ec56afed04f13de0e3ebf99afb28dae8a8a05e492fdf53b6. 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/NLCQ61944506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c528a873f63fbb1f3b2b37d9ae21780f353bb773241159a75bf7c10d2e446a. 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/NLCQ61944508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18eb488977684c10dec2ed02663661586b194c73e461258057c5954d85a69c1c. 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/NLCQ61944510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ea2415ebf1b67506f81380e5d3fb3f671da6a5d2ebfed38e7c8dac0163236f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLCQ61944504.
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 0xacc37d4fca9eb49fc89e8216ef7ccdec6e547b22989adae58d7c4cb947b8da15. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/NLCQ61944505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fe334389d58008c60dd9583a5bcdb07592b83508be161475bee2167196eb82. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/NLCQ61944507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1978b69e57aa0e98bfdb436c9a3dfd39491bb89de788f4ebd60e6fa798c4f171. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NLCQ61944509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1ddad4d8cfa745842a247b53627d136664e922156d3ab6c818bd59ec8c1433. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/NLCQ61944511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ab46687222aee6767644a0f7d711f133fe6a9f09b9d17d0019f711f32632ab. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/NLCQ61944512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9deb3cceaf0f07e9e339377ad3f059bc202ba864be313733231495d56bb6ae. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/NLCQ61944513.
Van Hem wacht ik een heilrijk lot! | Mannenzang Katwijk 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a799d1c4d8eca46c1f20575910b4b329e8c7bf339fafac2e30fc8cd86a6b18. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLCQ61943801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8d3695178eade77b72fc380cbfe61439f856edfdfc30c28424110a14488886. 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/NLCQ61943802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62d55ebd327e48107ef71d6dec0eec7322d220e3c42e44db319ac816125482b. 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/NLCQ61943803.
Leer mij o Heer, uw lijden recht betrachten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ae877581df48fcc930a56525a1be3e69ca6dff87a078b486d72f2dc35d0242. 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/NLCQ61943804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6411169bf44823f808886613e26a78245d3d75468087a9675303b1398e190459. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLCQ61943805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6fbc63ae13181ccceaec22f39efe44ed60d624c6ad9e34908894d9ad2dc4c9. 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/NLCQ61943809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd269d04a458f9378edf0bfa56f0d0b4f8b9836f8d721873ead54957b3b65bf3a. 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/NLCQ61943811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf044cd0c81fbbf311373ef9b2d11e8b6caa1c17e9a278f6534eac494db6a1bf5. 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/NLCQ61943812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72095a4084f5de3f1502b165b4c7b0e2a472d9482d657c4ecfb5e50182b1cdcf. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLCQ61943806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72861c20e3da0580339f72f3c1eb4ee08cf504ce4ab08dfff8e10a640735212c. 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/NLCQ61943807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc5b082b9771d4b5a47d0f50ce83ce9bbf26779ab3b70a9f84996e549d6ba01. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/NLCQ61943808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbe84c289923fdcd4d96975ea52c42e107b263af9a8132d941f7f7ca60aba9b. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/NLCQ61943810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e5fcf3c8b3e57c6856400c6b46bca4f932bb3ba3171fa89c14c16687b01d2e. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/NLCQ61943813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dea8a1125505baf43d113845363cb3e6e46a2fc56b3341332d2ec8df112b568. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/NLCQ61943814.
Israëls Wachter, sluimert niet! | Vol. 7 | Mannenzang Katwijk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83a58f443ce274d672bf3712d681a962af7141564a69a912b9b2d1a1408166c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLCQ61844501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e06d8a9e310d65676ac909b14a74206217ac10414de715b8bb2f69f73f1b5f. 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/NLCQ61844506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7faf2a9b220b2f8a7d34c21fa4824d4a4bce98cffe13cae2601db84544e9d8b6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLCQ61844509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef796651e3f3b9ac6b6b90d636da30162b5ba81ae142d0f79052580466e7bb85. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLCQ61844502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7606856377294595146de320192fa7954092b1284f999580cbcc5cc18753bc3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLCQ61844503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6a100db4b68d712de11519df59a833bf2a97fdb58afd28b45063980e2d6325. 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/NLCQ61844504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dbfb4e10db8ff6954dba823c52f51e9b57b5f030048fe2683d6c91b045a5dd. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/NLCQ61844505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2507262b52c0cd3707ffde5d11d774efb7757e40ac2f6cd574d3e25ff26597. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/NLCQ61844507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2059f71b1cbd78a621b85b3ae8ca27d323afebb4ffea71160bce57e41ba04809. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/NLCQ61844508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572660a5679fe58c1ee46c145edb5e5f00cc3426600bee6f56e491ec4b7a3146. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/NLCQ61844510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83c37473ad6ed6acc8338bee8f1db20656313be8f37ad16a8de5eb47ff41359. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLCQ61844511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e2ff758d1f940c4005b82cf2ddd17bd08c9d23eb3a6ec1a7083216a35d5d49. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLCQ61640701.
Christelijk Mannenkoor Soli Deo Gloria Urk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d89f714c82a2916b2becb90b26125043243343e813faf19c4f562662cb44d5. 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/NLCQ61640702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab2e45cbc6da451e7e1a2ceeb661f8ea14b50dd0050e1c8179023bd5fc99310. 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/NLCQ61640703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe4b26e9bfa66e35e362c8fdc9683e8d70ed98c20f9a0b0b734b99b5cb796a6. 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/NLCQ61640704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859e9bb6c621760fa969c721a9f3c0df5a556faddbaf79998146768b1603bb83. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLCQ61640705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ca2dd21662e299b0c013e7ea76dab642b1b9a9e935faf132f55ad32b5894d0. 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/NLCQ61640706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841c4515a472a294dbfa9f3b1309af0fb163ceb2dcc7d0752cdb9464879a8a24. 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/NLCQ61640708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f23e5e193ead95e01943bc42cc214d8e7c4d3e5bfa7608fe4c9330310b7c95. 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/NLCQ61640709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc00135d4978534882836991e177844b3afc3da177d09317bfdd5f757a55b45a. 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/NLCQ61640710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8293c350888b73d7302b5f57bf5942a8952611795422949aff35eeb352b2937e. 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/NLCQ61640715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e072ad5ab0cfb14e51b97781ceef17761e541d9604b2bea21cad66a753ec23. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:27:10Z), 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/NLCQ61640712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b246a059bf676aef1bec21089d22bf600ec8c2a6df8868f530d3ae183a255c. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:01:37Z), 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/NLCQ61640713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fee550b29e40e8077973eb702882c0fe846fe0d28fcd959b9e091ac85e82bae. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/NLCQ61640707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103a8ccae0833875e6a5d95c14c53ff2f26898b2e9a58c9a49721ec9fa424517. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NLCQ61640711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92286108c0dd82d4dfeecddf1e75771a4ef6e22ac254cc3529178d8df9b2b454. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/NLCQ61640714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8e8c390ad31cd72da6e0651483b74c925e337b3925a36585be5db85fa629f8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLG620584663.
Uren, dagen, maanden, jaaren - Variaties
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0f2242e49dff93c8407acc5e55f240d510f7ac005ff019b2abedca53237275. 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/NLG620584668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87dd472df49a9811f01f8192f2ef435366c18f477617db66bb4010f0b8a0fff. 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/NLG620584669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3447d9fda44a6878d2a79e8e19b57a1bf2724beadacf2b07911b3b3f10da4ec1. 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/NLG620584672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3012344a94d3d26a1320c741740de4114286daa9f8681be833a9e8df3a24b6e5. 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/NLG620584673.
"Gott soll allein mein Herze haben", BWV 169
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacefc04f2ca16be513e84375ef8f9171d1c666d3eb8b01958a027b321fd7bcc. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/NLG620584664.
"Ich ruf' zu Dir, Herr Jesu Christ", BWV 639
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f90a6c509015a25becb5eb482a9100233ec4a9319638f9af2a031f651e3ab0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLG620584665.
Suite in E Major, HWV 430: V. Variations "The Harmoniious Blacksmith"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22ab5792b1beb35898f41676ceb0fec0fed734518b1e0020c9056501e654677. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/NLG620584666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ae65ea8ff350719850b5208d9460f16cf54e6e1d6e7d38efff3aed3df0410f. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLG620584667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc981427d62805959cb9e09b18c51c796885fb58b401b2b3f0e1f5c8ec8ed243b. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/NLG620584670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28606595c500401c5e978d5f31a5fc137dcdbbf1dd39ae1ea17474a352b35f2e. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/NLG620584671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd51043e22fb81eb3ef5f649632b107b75414542e61e32b264e23a761804d204. 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/NLG620584674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeceb9600dfecf869b63feb2f48bef86aff8e94055c9e739e954a9a833ffac3c4. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/NLG620584675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa51a000fc084a4539b983f14b77b3fb93de3d60fc8554041710831967e54ae6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLG620584676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c528b56bd27039f3941862c0295b67c270a04825f79d4cad504f9720b48181. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/NLG620584677.
Orgelconcert vanuit de bovenkerk te Kampen
Prijs, mijn ziel, de Hemelkoning | voorjaar 2022 | Samenzangavond Katwijk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf62eae02c9cefc52a3d856c7cf3e6a511494824040a44887e3941824f77e9f7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLCQ62243814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9e4a3ace9caacb305c7bc174e6ed9e6ade3d6f0ea29980577202121ea56523. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLCQ62243808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b41a28312f4cc1455e3f61b9e56e9689080a96868880c5fc4fe7bb9e74eead. 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/NLCQ62243805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602082a9d240a08949ec30cefff704fd4cde0deff4fb3fea595afa96b0cbf8fc. 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/NLCQ62243804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b7f3599ba5320fa99b115f0c7e418e8ec926c4a9e68dbfae0cc21526eb70c3. 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/NLCQ62243815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9cbfa296b4c4677dadc1993d75e19db52d3eaa28162d12bcfcbe9f94cefaa8. 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/NLCQ62243801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa888e1780482dd40bcb8c69d228acbfa667951618a66969dad1b6101ba7a5e7a. 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/NLCQ62243816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbaf2cb1ca701f7cf9b9f7631651e2f1428766d8c965f6d140a23e9372abba60. 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/NLCQ62243812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c56f6346020ad181c0c226bbd6a1fd049e19f5199fd7e6b8bf0b60f48f9a3c. 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/NLCQ62243807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e55b093786bc336c2a743bd27d3119730b90f4dbf0a0605d60b7d97bda0629. 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/NLCQ62243802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abab71577ba80f1e937e1fa6386a7047308dc7e9451fd3803fdd0fc6ab1c3b5. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/NLCQ62243809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaabded3530cdb26d757a08fb859fd9c81cdd2bbfd72baf491b718598f0a37df. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/NLCQ62243803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfe4bfdb4a3e62c9c73e52b84de56090c3e868e99b972d75c32b7a8343d0227. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLCQ62243806.