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 0xb5c1170710cf3e5c2463f376656eaedb4c7b1a62bc98570c48312b4c4186c6a9. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f46f14e4-2888-49b7-afb7-75eaf052daed.json and https://artists.proofprofile.net/proofs/artist/f46f14e4-2888-49b7-afb7-75eaf052daed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Armenian Duduk Meditation (Traditional, Peaceful, Relaxing and Meditative Duduk Music for Study, Sleeping and Meditation)
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 0x8e490720cced50607962a1b546ad399f43c6770e22d4908f35d565b4ecfce04a. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/NLD912200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9067308bf885293a96c89c35d7a6ec0b745a1d9dc9211b6a62d84a5ff74e42c5. 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/NLD912200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9e633a8b3013e45653129d2392c4e3affcdce8f531cfa10ceee2c28edd84d1. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:37:50Z), 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/NLD912200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d60d93fa47ccd88bb616f4ae42173e59f0343d7cf182b3d565594a60660c1fa. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/NLD912200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34008f4dfce9454540916b1dd5408823ef973190caac1b1188f30d588c46e555. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:55:47Z), 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/NLD912200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd6960f04c094059dba1199df8fdceb2d0a1469e8b43238c11a808435e91032. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/NLD912200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefafd55c08c2ea67ed23caa233bdafa0d681223f7e0a737974e1d0d17ef7f1a5. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:41:39Z), 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/NLD912200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9307fc3fd594f721ebcef3f1f9a4c8db3598600ed4c9a711bedaf7ba4ea039. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:20:07Z), 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/NLD912200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9675cf243fb16243f116cac103572e30fc0ee0e0f66371f3cdd06cd1edc7e17a. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:03:49Z), 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/NLD912200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2e7e806448dacf00ba31c0f93957c7cf8f18c3af19d70b51841465eb6a0cd8. 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/NLD912200010.