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 0x5c01f14f5028e4229afe2b3613595047681cd47f4f2e99e056ad7dd3c1ddaaf6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85ad384b-10fa-488d-b094-b5d9433565f8.json and https://artists.proofprofile.net/proofs/artist/85ad384b-10fa-488d-b094-b5d9433565f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Het Is Gezellig Hier! (feat. Cafe D' Brands)
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 0xe34714cb42ef1a529126ed64322d2b5b6fea54b56b9269ea073ab3e3451653c9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NLQ901500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330dcb6269c8585d07eb0a149acb18b8f61726ed0030916101601cba0d7c75f1. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:22:55Z), 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/NLQ901200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5003b788e1756cbbd8ba27fd7a77d7b43f5e2568c66935919a28bb47a9c46176. 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/NLQ901500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72945440d33b8e326db1ab03434819af896d45154489e3a7d50eb034ef1e111. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NLQ901700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5dcaf6e19d7ffd459a05b1c1d45bc06a2e0984f3b707c4abfd5891fd5ac9cf. 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/NLQ901800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49498754053fea636f8b3d077a0f8e73188609f4d7ed5fdd47b30c67e485731. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:05:00Z), 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/NLQ901800149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee5394d052082415c66e74ff6f7098baab89292c4c16ae962a93abc4ce8912b. 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/NLQ901900017.
Kèk ze lope! (T lekt wel Carnaval)- Freestyle Remix
Kèk ze lope! (Freestyle remix DJ-V Delicious)
Kèk ze lope! - Freestyle remix DJ-V Delicious
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97395ecc57f861fb9bf5da28f0de44161030be658b08d6976ad0d94e503ea32d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:07:40Z), 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/NLQ901900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f491c0b6dd511364dc4a7e18f1ba5d941003c071bf26b73e551f7a0a46cda1. 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/NLQ902000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7c97357eb93f0c892bb8fc0a2c4508851c5719022317f50c285480f9293149. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/NLE872186101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7f97630b23e4a0cc9ff6e90ed266e07b9721716ba3fdd321d94e592765c8f9. 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/NLE872211001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2ccad288a118b21dbc3c82362ed27162fe0d54b3dfc471d5c77499dd2cceb3. 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/NLE872414301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941915cb02af903627ccfcc0554ae3c3ac9d942671ee1f5f059a5e557ae45c38. 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/NLQ901900120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b200fca902dadade02ead97ac079024ffefb0b0751bffcf139b124d48ab9282. 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/NLE872411103.