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 0xabbc77321afb5fa4276db5577dd6215f27a6f230c1ae55f4d8cd8a1a966be5ee. 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/01ea6652-7666-4c19-a4f7-4a8f3a768874.json and https://artists.proofprofile.net/proofs/artist/01ea6652-7666-4c19-a4f7-4a8f3a768874.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 0x02cc2b51780b39f53aa5fb58b0c215f9cf3661c3c048148dc7a1d2fa448cae0a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BAA052023976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee0f53dde9392c894775be99d7841d5cd6d5881b811b268f3400c8ae7ee599e. 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/BAA052023977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade582f04dea5b57a71a2f206928697f4a0f68dd1c093b3fb5371f1ac713dce1. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:01:11Z), 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/BAA052023978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92eebde0fcb9064a50e97a03016caa3e0200c6bbea609d01f8d90a66065ff231. 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/RSA222301989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3986054720ec6cdfbe05bf963e91ff08ac9780247abb5342717d2dbd8c3690e. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/RSA222301990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5132b0fcd38f78503aac84c9b5024d7769c849b7f9b01982b693b7e851222bfd. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/RSA222301992.
Ti me nikad I nisi volela - kraj koncerta (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4203447d83518c13ddab0b1b61cf1562e4986f056dd03e63f03065396aa509d9. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BAA052116763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c16cea47968366228e80ff42a37c79bb4e5f73447f007e49d1e0c015c416b82. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/BAA052116765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a9be942a0238d61b2af5084dec85366faa41f748836fa7a54cbd460e7c3135. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:09:32Z), 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/BAA052116768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4f52432e237519370dfb6078f1269f0e8fc4896dc6306a9946b706156a5b1e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BAA052116786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5c9994c150c840fedd9da011a733ad337bf26a27d95d3d064ab5fea6576ee3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:53:00Z), 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/BAA052116777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c61119cf71a7d7ea505a6aa26e8d6e61f964268458bd2f7772b137fd39b822. 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/BAA052116774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9106754a369b5a50c2f717f8cbf940056793381c35f942e8a8438a626a5ff39d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:42:36Z), 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/BAA052116781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4399784dc7429f36585de84307b9fb6cc8e5101b0675df6bd77d0fa190bd89ba. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/BAA052116776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b76e6a5cf9efcfe2b7e554f7acf05b51ae2a5a2386483c9972c45a4f211b47. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/BAA052116782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca2ef96a98b2c20071fbd2bfbc185140d9da875da6a13d3e331b00f9230e56e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BAA052116775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f93a7ea9513c57a29d90c30e919ac4a66690bde6af27447fb4fe6f0d75ae9c. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/BAA052116779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f104672a058e4740a5c18ec505a428fcff486123ef269a28a08096af359a39. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/BAA052227204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183d80a6a6ff3b73e9dd55275cbd9e928371c3efe8e1a45a916a8df99cbb95ee. 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/DEKB72093424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cad1d7fcf3836090dd538d63aec8b112563e9de5e5cb6807d6dd3e7cddc382. 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/DEKB72093430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecffdc68e89461ab00bc0c4c9b1df36b87efd98eabf6917ebe52b5ce9809e65. 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/DEKB72530729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a2435e5f7374fdfd42cacf82aea48b0aabf480ff2f1a25db802d867eafa842. 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/DEKB72093440.