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 0x7fd7f75154abae5d254161e26de103f8d1c1edc2709e74e41621352042011ab5. 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/f1f0b852-7b10-4fb0-bb22-27519b65a400.json and https://artists.proofprofile.net/proofs/artist/f1f0b852-7b10-4fb0-bb22-27519b65a400.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Famous Seamous (feat. Louk Boudesteijn & Guido Nijs)
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 0x466993132cabbac8929ce615f18c11db541776e9e8d823b5feb36dbc9d64ead8. 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/NLB151100648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039f54c2e92e5e41bddb314f6b4001cac448edfa9acafd00712807b27647663c. 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/NLB151100641.
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 0x46dfb6523f2ff33ab3d5508d4e5b50269ad75a8159b1dc9d76c065526d1e04b6. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NLB151100642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56aa004017a2b58a045035db12d52e1b4ac53185bb7573440cd92dce5b0acdb. 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/NLB151100643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bb5d82d6a3849fb4c765735687af2e3caed6d9e4e1d42e9eb363f2f9b8546a. 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/NLB151100644.
Baggydog (feat. Louk Boudesteijn & Guido Nijs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33600082ef56604b54c25830ed449abe4afd949dbefc16bd67e61db0d63c1fff. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLB151100645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce241edb94d781fa82baebcdea8c002e1a4666bf331fa83ef70171fce6522def. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/NLB151100646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd23fd78f5c8bf08dcb90a7b35fe1c99261d3edd6c8cbc0bf0e982df833c5a76. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NLB151100647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2afb9c84b5b2fcb1da7c79a40fa12ec69908131df2c71167cf33ea67073f58. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/NLB151100650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe590ded58c045765daa5a35dbf4e3d68d01af916e9b3dfff183db1f7a1343349. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/NLJ8P2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad01c70f826dd165a89f1e52c0ccd93b140f85634357601d1973f32c815f12d. 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/NLJ8P2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e9db4d668a7e356fdba67b157425cd6bf119abfd90acd5f3b700f91c43dcbe. 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/NLJ8P2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee4905a26a36873391a731fef14ccda924cc27116a343079fae4fe84728a469. 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/NLJ8P2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa7de21fa95a837ab6b13a43ddbfc39073e147a6c5a2fc55279164ca268ad0c. 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/NLJ8P2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5938e7dd6fb43f3504e2fef6d0bbef8b59633de2f4519ce2dfdf83e25f1fc61. 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/NLJ8P2200010.
Come Wander With Me ft. John Engels, Karel Boehlee & Aram Kersbergen
A Love Unveiled ft. John Engels, Karel Boehlee & Aram Kersbergen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877715169b33900880eabb59e9ff865cbf4653af07f04bea0fb5e3a59ffe8f0e. 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/NLZ292400219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37cc8e9eb6b19ea84779c096a3ee0c48656b986b9c7a68a589d8ea520e00db4. 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/NLZ292400221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4a7df578b7474e8e530a55ed7595045506c15ba340973e622b7a3891951ed5. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/NLZ292400222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b122fa6e5b0437f6bbde3957e525884558421635f2168bdb7dfa4b744647b62. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:11:04Z), 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/NLZ292400223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f51e871bd937158f1048457d575d958c0ce89d7fb0e417ec1d6acabba48bec8. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/NLZ292400224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe136cde8f98553c8075828f5fe6f86ace54bf75e232774472575a40627313c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:01:26Z), 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/NLZ292400225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe679c12c1d32b4bb52a56639337d33cd32dba092889f007c2c747d100541777b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/NLZ292400226.