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 0xb27be9951f3f720b7c20b46914fc549182eaaaac450ff6523c13e426bd152dc2. 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/1fad0815-07ce-45f6-b151-6532b62560f7.json and https://artists.proofprofile.net/proofs/artist/1fad0815-07ce-45f6-b151-6532b62560f7.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 0xafe90dd7d20c211eb293f0bc9f5aec93b7a85516470909892ab9d535311089ea. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BEZ611801643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42b8ad3b2f856c1350b45225512aec37a7828af1389b8f8ce1e7c2134261293. 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/BEZ611801713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b15f53c06996c8d33b1b50ecfbf8e7a891f5beb3163af4530288af29d8a2531. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:47:30Z), 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/BEZ611801714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b289594ceb5d6531810d355dd9ba35709fb89282752b7ccc9a37a0819bb350. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/BEZ611801715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1731a20161b2243d3ee9b8aa0530f34539cee09fc42bf7a88f0cf5d3d328204. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/BEZ611801716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab717d51ed1d4c48e8cb90087de4c54dd26b473d6d401d89426f82a3893949b3. 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/BEZ611801717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c2d628c65261910e521e84b1af10792e9f0c1070209027a5c4f6d32a86ef06. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/BEZ611801718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09edcc855bf85f194336bc99a41c6668eaf2aab5fa3c4b2363c30e0f49400c5. 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/BEZ611801720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377bcfaf54e4f17e0032124bc24e27bdcc4e43120b2562a5cc9e6562555d499e. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:45:39Z), 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/BEZ611801721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b9620a70d18a5feb00814eef4e10b612f96bc441af5c4c5d473b0d3ea1157f. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:21:56Z), 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/BEZ611801722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03255f10ab5c2c57b080d6dacd592243af769bd91be810f3204e1b6fb93460a0. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/BEZ611801724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09232f6129ec3b1ce2b128e3e59424b86513ae1a88e5b5187fd850b7600e292. 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/BEZ611801725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9b5aceb9758624f176f656bdf067d371e3a65e36466391baa329b00943cbb8. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/BEZ611801982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fa6710a108b21fc7844c496c1522ec73c45a6595eb3964b13d8c3e4a5c7396. 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/BEZ619800351.
Mijnheer Konijn is ziek (Luisterverhaaltjes)
Presenteert zomerse verhaaltjes vol. 1 (Luisterverhaaltjes)
Presenteert sprookjes (Luisterverhaaltjes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064ff0f6cf22ba66d87c90044878cb15923e694453d8c8597c82381da4bc4302. 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/BEZ611801687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf430df9673dc7a4386a43daf55457f2681294267343fd7887ca4e1b8a6bc4792. 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/BEZ619500526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a26c0981e58e8853b72b1e4dfb0b51cf3192ad55a571c1b32fba384b2f3703. 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/BEZ619500529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa010542c29f2ccfa23fc66243eff27dfdd2e2ea47c792e208c1c4c76b30ba4. 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/BEZ619500555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc929c21e566d5b68d9928534e59bf45d0029947803ba6022a7e3f352f2cddcc. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BEZ619500527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829c389f489e5010b1e061cd4a223333fee25bf7a62515c5f3b18ea2f7ac91e4. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:04:47Z), 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/BEZ619500534.