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 0xaf43e7ccd3e7f7e1667d7b71757fdb2e3bee68cd198ba4ecbe3ada48fc765f9c. 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/c43e3704-b7d0-4a59-b04a-47ff4606f01e.json and https://artists.proofprofile.net/proofs/artist/c43e3704-b7d0-4a59-b04a-47ff4606f01e.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 0x69869faae45e8e35ce1caa08b40623ce9e37940257bf237f46cf4dcbe36ec4e5. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/IDA171187002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5797f7539961b9c92cc2e55cec92e567d91796e31eaa68ddfd0aab614c57e7. 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/IDA171187004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71d6581b77a44ecb362077d547ff394c761ff146811ac2f4240817129d34ff7. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/IDA171187005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e4f5011b18da1e8b80564ce73a192bf3204894e6d93710f7f88bf8289f58e0. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/IDA171187008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d6a362e0e62df783c0af2a863188ab5804bbbac87dc35002e563752ee9e9d4. 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/IDA171187009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9706e22e1c4d6bc55bdfecc83f06a3235c6a6c81e789e145e64da369e692e7. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:54:42Z), 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/IDA171187010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03a5fea03d2bc40e016d4fa6896e267bcd2787dfedd1bacb1c518c1127b8ec7. Chain 2 (Bitcoin): anchored in block 957523 (2026-07-11T04:55:40Z), 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/IDA171211010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a85c03ddef7f498096c06476fb5775d2cd228c3644cb46d4dd79c08cb147a8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/IDA171387001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9a7bebe262c5d9a5cde372d5b71ddeb1cb9f026ffa838fc1ef255d345a7756. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/IDA171301035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5986063280ba2182c7f1591784f809f6e015d2786a603064e51d9687d6dca1f6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2P1851313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a9d1108a59faf71ee8967361683c4b36f9362f6652d70b17d3abcb8e28ff8c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USA2P1560077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaefaccdf8cc291082a1c115b33b0b936db3fb5b501d7db833ba6d68461986bc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USA2P1684660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6609dba29f5f610faea9290aab2b5d6dd558147c71648ec036600864a372391. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:00:51Z), 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/USA2P1684663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88bd35757ab80b21bc64e1c6308fd0ed0cc5e476972d20fee5aacbf64035e75c. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USA2P1684664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd304aff207b4160767d2dd144683e587089b55bc2d5c76d3b7cff3eba94f6f12. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USA2P1684665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee71916daea0e04ae62473bf2f0fa8fdf6808723f62a6c8b8157a28289dacf90. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USA2P1684667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3065932816816736f1418788fd471ae78e7b2411069aa97dac33e4c7623be7a9. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USA2P1684669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541d5919489f121b12b935de03d16d176ca0fe604294b156cd64db497a39b821. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/IDA172030166.
Ketulusan Cintaku (Pelangi di Malam Hari)
Ketulusan Cintaku (Pelangi Di Malam Hari)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07cca2fb1a79224fe5292c3dd33460a3e4080b0ac4713abc46d299cb484de250. 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/IDA172130084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d412816ea84c3311ce01714e49f73b6695a2f0b9945eb30d8a5ef3a276a048f. 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/IDA172230209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1510dee43c4a34f72321aef7f922ad5efc4522e6ea64a4439ad3846e67b0f3b2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IDA172230193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b426446f59145c8296d1382ef8258779a2ec1c9b0126ab4243a332b69ea9ab. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/IDA172230028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cd96373a89102888621e705b8a3287ee34cb0745bbdf76bf3eda1fce2be284. 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/USA2P1824441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae61fd1dccb29b696da7f76b05d42679b5fd0e1961d34edd2f098682b8af5977. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2P1914685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541d5919489f121b12b935de03d16d176ca0fe604294b156cd64db497a39b821. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IDA172030166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ead0e7c11c5e10542f3ac2b9973248eac62cfd26f8b4a07e817fb7587c4fdfb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IDA172030007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07cca2fb1a79224fe5292c3dd33460a3e4080b0ac4713abc46d299cb484de250. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IDA172130084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603d7f731084c37d6e21662d4b7392f1bb48710a9da01aea108441e1fa83c174. 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/USQY51754239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1b72ea4d4a8c51a5c200055c8f002df118893285324d0d253f1588c350ca5e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2P1851374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b426446f59145c8296d1382ef8258779a2ec1c9b0126ab4243a332b69ea9ab. 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/IDA172230028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d6ccba68e14ebae7313ed5ae82bb70249ded16fe4f3c449a9dd81adee87045. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DGA0P2333470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceede3db73f5b673d844517b42b05b1a1534d5d7f3533cd7dcefda01dd209b68. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HKE672400268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327135110026d22c159be53d13aab34520b8398c937281245c504143db33a039. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ID2DY2500062.