1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x00493308b6a2fc17c4559031d38179e8afc424c98e04cba244fcf3dbdf8c0cb2. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4adb5ed9-0efa-4561-801f-9c7bbddaa408.json and https://artists.proofprofile.net/proofs/artist/4adb5ed9-0efa-4561-801f-9c7bbddaa408.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 → block OTSBitcoinBlock must exist at that height 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 0xc65fa04133378cf32b651b231f22b9594bbc65ae1b25e57dba75bbf849b0efc5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TR3340602093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db2716afe8ef1750d98d56f44075c1f70a2caac45f1726d6bbc897be9dc9158. 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/TR3340600636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0caed8c66b3f7d41ad9582542358c05bfbb47f6b77fa5421f081920d08b8c81. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TR3340600643.
Türk Müziğinde Klarnet İle Unutulmayan Şarkılar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b551caff46611df0384f42fcaca7c93e81bf29014ccba1deec12f2a7f9c4e2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TR0040500512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36fa2703dba7ac4433d8aed46d25aa1159da3a9c79679f8ebd81d44e0c6637e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TR0040500513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e6de8abcb6c084d74c26b86e347f3532c80cc04eff55d51bfd4d28236bdcc8. 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/TR0040500515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee683c69bd9beb0f1c818ff75fcfa05c78704953c9f5a83b64b9028c96232e3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TR0040500516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450415cd4290dc43abbbcb2119496efac55615dadd74f635e229ddce8f2ec16e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TR0040500517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecf6ed15554844f23ad32df5f909ca0fce0f0e305f549672c71c369bc59e414. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TR0040500518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99df901a121863e311f4393fce03a3967a4c6715b8b7d61caf9331a4739b1e9a. 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/TR0040500519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a67276f9f0411cd1a7804365f40cec1b7db8db9b122b58cf0186ec5234530ac. 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/TR0040500520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73276bb8d9d111f5e3cc01609efe4264d215a256c64c55c271ee94daf16287b. 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/TR0040500526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd2fed1a39477a25f7fa572d6b7c371ed398fa70f4f647e2341484a66224e8d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TR3340600836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc60ccd5ec4cd65f7924f5d26668b04a6c3be70b0b3a1442947ae7263fb2bd20. 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/TR3340600837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3f72112f0f095179ad4a48b9bc7ce227f532b3d5c3435ab257dbbceccfa668. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TR3340600838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4f01352e94501157a3ec08903f0ae0bd235c51f0495484f847a317738f1fd5. 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/TR3340600840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcadd07e356141106371c9175923857d9b1d673fb48cc4bfb3e2411c26875e96. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TR3340600841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b966e24224117a2721febc47e934d846e79d87581e57cdc493a70bf5f84fb1c. 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/TR3340600842.