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 0xc6ff26f3b9f07e3fa1a572ff5ebc097cd4ce8b58e23f20dc93aa60cce73e8eee. 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/3163deaf-d952-49dc-b5a6-89d7013a298e.json and https://artists.proofprofile.net/proofs/artist/3163deaf-d952-49dc-b5a6-89d7013a298e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0x81c835126ecf12581b8a582d4f24c417ce9134661cf73d9a122ad67e9acb2c9f. 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/BEB472400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d8cb420b7a6a45be344f3d51a56d3acd7a24f405e6223d449ae292f60bd852. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:45:10Z), 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/BEB472400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c85333b3290f206f432e063fa95adfeb05913ea290cbf781b6249c6554fdb05. 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/BEB472400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33db5079854d4af79eea8b9ed191039f31c386e02a33eb52e7103cb6bd42f48d. 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/BEB472400025.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7076c1f0e4f4f18571c85f6b0fc5b0e33df9ce6f1ada3b07b1d30d46f05bf87b. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/BEB472400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5cae587cce950502a32adf6717ec56fbe031df6e9b0b796002a797f3b5255f. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:08:38Z), 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/BEB472400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2431f35ccef0665ea9c43a44dfdfec10d8e326a2dd3026fe798f35b599f8632c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BEB472400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc483a65987c765197b096f0d9ead9cf2254f63941c9fa9300dd15885206e470c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BEB472400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee12707234914a87d7effd1f3d3c4d5190ba7ea42c0835a0194755944ea860e9. 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/BEB472400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7b9d8bd96d0f1c0cbd84904627bbbba1ba7d8a6f1011fb992f4bb3e938d4bf. 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/BEB472400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eec948c31332784428c329a0b9704fbb481089159fb51b2cb6817869c66a5e8. 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/BEB472400113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccf040d6b0c14481e58b76a51cb95c1a8e44e61dc52c5fcf2e226bf90433eab. 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/BEB472400122.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af8fd726db4099e7d351fa5714fb833cad56897e88a2a255674bf0424ca192d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BEB472400125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d76b07aaa672c823d01ad8e9878d54f307827fcb0be9005524d77a3429cca51. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:45:47Z), 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/BEB472400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a8b9e74ae305a88329ac4759aeac661dc2bc295156c26ee408422398d4e6ed. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BEB472400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f9516f03f5e8507109891942d980657ba7fed9722376858e4167e0f299fec0. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BEB472400094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a2e4dd88f6ae8c86947ad30c7ec01c30865f2efded11cb4449f507ff740467. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BEB472400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e2961ae7d3851abab9eef4b76138ebb1f42b9112358116addbd6608e97b517. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BEB472400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b43b73df55d37dc02609d0a49e58de8dec4f778d5790b9752ccbcf7f13b1130. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BEB472400115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b985bdbe45493229d8da6842356b0cfa0409b2658055b4ac604250ed41ea9f. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/BEB472400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6bcf25a9a600a0b0cedb2e1440547f6f9b3e88a6d390773f10ebb4a5ce48bc. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BEB472400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebd1a16b6dcf6b52aff518904538be9534f38917d8ff112af15f93370a2b7e2. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/BEB472400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c951215e872487e7c733e214021511b826722333c540b3e13a79e4e97ef9a34. 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/BEB472400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410dcc21d02078f3cdc17148b85b07a05edff659eb2328f7057a48d781bee201. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BEB472400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568516befc4305d9f2ebc561785a8c93a7e99845ff04cbe7de563fb7fbce1e5a. 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/BEB472400093.
Olga Octopus Kinder liedjes van in de klas
Vlaamse Sinterklaasliedjes om mee te zingen
Vlaamse Sinterklaasliedjes voor pakjesavond
De leukste liedjes van Olga Octopus voor de hele familie
Traditioneel Sinterklaasfeest Vlaanderen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bbb753e60469890d632d547564f6041eef7193cc594427c7abeab79a7d0359. 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/BEB472500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a31570964454da7f770fb91c371a68760bfd62e92b1a94361a06b8fd2a17914. 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/BEB472500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bf9a673e731a902c4fee0eb9595d4a10d3b8aebb7a7ff6415b82ae529d77a9. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:23:29Z), 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/BEB472500041.
De Beste Sinterklaas liedjes | Slecht-Weer-Vandaag
Vijf December! Ha, dat is de blijde dag!