Attractiepark Toverland is an amusement park located in Sevenum, the Netherlands. It first opened in 2001 as an indoor family entertainment centre,Pretparken, Sebastiaan Timmermans, Volkskrant, April
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 0x32bf76cb71c062951a9efd55ce653dd1ad0cbb24c3d1c0bb48a142440363d74f. 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/1e0fdd41-926d-486d-9140-0f804874364f.json and https://artists.proofprofile.net/proofs/artist/1e0fdd41-926d-486d-9140-0f804874364f.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 0xe00475195184cb592794460829af41f9a0e185688caee1dff2acf9b7cb2a1e77. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLG071700141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0348ea083dfa3574d1251ef43afa8f96fe931f6ef312ca863582514a8c2019. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:07:39Z), 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/NLG071700150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4a3028cb05a662656ae1c1e4357e7e282aa9c0efb3761b8ccc22828b749da9. 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/NLG071700152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd423d13a921421c707b6791073c26dbf150a7671d6ea96dd75fe293798e28577. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:43:49Z), 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/NLG071700155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20adee9da1736c1eb7aa5168c23938cf37ce97e0691ca377c101047d48bd6adf. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/NLG071700157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3982bce2d738ca0faaf86c3156382e54f010c0f19064c23fbe8d046ce859af8. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:28:32Z), 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/NLG071700160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766c1102fff2de85dc5a61dda1e4024f51975adc572249257025641df052b4b0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:42:47Z), 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/NLG071700165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225a88ad1022670ddbcd5984ca59ecb22a7c3936b4bc02f5c351607af07a4932. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NLG071800190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55014e4e51a39861f90d0d89b35d9283b106b7b51958731d7488ea585cf221a3. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:02:21Z), 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/NLG071800191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1201c5c4478f04a8f99b1173003e5c43560378bdbf366d2c0dece013a7efcdca. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/NLG071800192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d9a32f5589ac2422201c7eb31a611a9de69aa394007f4e4d266fed15b577e8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NLG071800193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8687e720ff61f76653d0cc2700cd2e9d8ddb722bff7c543cafb59f0665faf532. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:27:42Z), 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/NLG071800194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03bdbcb01a611d932ef238d4dd330aa9555f0584d40b240ef408e15353915f2e. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/NLG071800195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45070f94b5cc6803d87beeaf36fbcf9592d06fdc2c67944de0c05169a3930349. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:37:29Z), 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/NLG071800196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9f30e0d343bf80ccb38d0ef2d50a36dfae06df45a475ea6a8e3381825b4888. 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/NLG071800197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a167e966559365fa17c029617e2c29f274ab57634855d1ee2bb54a241c0158. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/NLG071800199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1186e454a41815a2980b308646930ea465a6854582fea2eab4e0ef8b820acbc. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NLG071800200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c234e4c742fef2cc1c14fc6cf4f0b737dc1c0728118aff113f77c6a17dd67b3. 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/NLG071800201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f85d3318350998346a37d624fdbe9c8e478fbc9ee190d629209e8df7c7be2ba. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/NLG071800202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383d1bed9681798b3d42a9377983b86a8d84a5fa94a011fe72db1472110007a3. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/NLG071800180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd977b6d4a0dc9982b55e171df5e640a15a7079027eb2ea0e5b62e5e7e7e9ef8f. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/NLG071800181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e77814983fcfcf0ff08c16c8b347e3dc8006f0a6bf8bde03ec6f10905f480c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/NLG071800182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f557acc913876f7b9615df340c57b56889d005ffb6c156aa906f5cc318dd83. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLG071800183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128e693aa13b6352b29bfdbc4c9e6cdbf14384628a026ca5efd398fe2f4d697a. 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/NLG071800184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d603e5fd88dc602f32b8cba9532fccd647d9974f364083140462a49a9624f37. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/NLG071800188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc643db5c4c57792f3cb6ebfc04e54ad5b19e26183517c93e043a8428a7edcb2a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/NLG071800203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f33abf218e1ac0aa7c02d949acc93a562feea5b3662c65f1b79aeaa3ab980e. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:42:51Z), 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/NLG071800205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e5bdb42fe5554371796b44e135b833d1a94626fd278e6879edb939a162d644. 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/NLG071800206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107c96820f6c20e8ac2b7de1407e94456bc7330493ec25352f06c388c03e06e9. 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/NLG071800208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf698df53a42d1aff3ebe0d4fe56ed1e4197d69139f5a5d4c4e85f032f0e29fa9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NLG071800209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7886a948e3967236fb8e14324910b32908a17f25808e70a8679de980b76c8c. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/NLG071800210.