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 0xcd7253ed7c926138e46b84f6e4ebb257cdb6bc262bcb97f6bad6612f412572ad. 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/e924542b-dd4b-4273-9539-c828b23fb322.json and https://artists.proofprofile.net/proofs/artist/e924542b-dd4b-4273-9539-c828b23fb322.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 0xe73d076f7cc7c8f463ef1abc8a2f6c1835206d20d980b8f64f3a22b799c30a96. 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/GRFM19600339.
I Apollonia Kormara - Mr. Sfihterman Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfcf5ad00c043b5b54db267b697962d2c3eae56318849c7e555d0e493c88e83. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:42:08Z), 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/GRFM19600341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b657067270c83a0ac2cca265d74a77631a0ff57c94438099cbd39dce483062. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GRFM19600343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1d90442e5585be21567a218414218946b997dfc45e460c5475bbfd23df3111. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GRFM19600345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786cabd2449872d753f257b4f6a1a81625de4dd27b40445110c0c329642cebcb. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GRFM19600348.
Dose Klotso Na Girisi Skoubriliki N' Arhinisei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7dd658b78b8cef5f9a5283328d81a15c8c47dd6634f2b423346fbf0af4f8a61. 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/GRFM19700467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d3fcf73710601b77e925498cdf737c38a745ea88e11521b1a25a04e5bdbcc2. 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/GRFM19700468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31363c28845bd7a618928fb2385bd5014036f7ce575d2f5f082a64b1b3c56090. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GRFM19700469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955019e0054ca8f97950de73df66fa7aa9526c31b0f00fd67952fb6e1b153fd2. 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/GRFM19700474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a86a34b22346a8533def767113d5ac08f2eb896ade7b02e5d84e5450841b5f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GRFM19700478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab5f411ba887c0193ea426085f5b1bac77313cfbe41ab75412dae292af0e2cf. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:46:25Z), 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/GRFM19700477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f7f3fc61643b4bc6ef239cd29d2e0d7af7a1308553f99588e62ed512da1cc0. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GRFM19800436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafb59499c665b7633cc065fb0770342cda327aeabd1e8458fe958b989927550. 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/GRFM19801022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa7f3356073e019b90ae99e062d954d28c0347ced62c6e9042437813817b686. 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/GRPO19900721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94cb70e59a8089b0a651243eeb6256ae43f62697af6c91567b80f617ce8490e. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/GRPO19900723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb22d4cd896df25364ecf675afad37327df18b656baa4b29736cc857c61ca3b. 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/GRPO19900724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9138c3212da916f0b18c8a62e4d21550fcf7a82a2da36a6dd7c9e17a8083e3c. 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/GRPO19900726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ec1674ed7abe10f70f4db2813ae2f491b0886e61967bd84bf85c28c32df1ff. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:57:16Z), 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/GRUN10100265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6e3806f71bd9ea52f21d82ccf3e4680a1f805017384d03c0b3a1614e787d64. 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/GRUN10100167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb905378b83b03ecf5a2e1ea9590029340d8d973ecc2a187175637928fce5ea86. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GRUN10100267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe348a202790247151773ae4209099f609121c9d0705035b02b636564b6109ce6. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:12:19Z), 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/GRUN10100277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bc12830f86705850bcadbb824f78069da48abdd5ab66562c8483572a7af2b3. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T11:00:58Z), 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/GRUN10100279.
Ta Afthentika: O Diskos Pou Diafimizete / 30 Chronia Epitihies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d770c413417a9fb371977fa9d85ee195f04d363541745b4330e24d72275369. 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/USA370527709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4f104e5b4c52b477b64027c26c6406470489f3a9d53309f52f832a38d7983e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GRE010301135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf223ec83936291787190c151b3a75370415cfbea3041eb48834418456c4ff55. 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/GRE010301147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a0015647fb9354d95425c6af43c15fe773467a74dafb3cdecb801e4a54d23a. 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/GRE010400386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e9c4f36549a0327cc4eb0f865c9f322dd5a510baad3fb49fbf14c2bdeb823f. 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/GRE010600511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f17774db91a217b55e639b6d1bb5f54090f047440a6169ce4e6603e6c423a1. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:27:20Z), 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/GRE010600515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd282ac58a7a87f9b2369abe151ec07e26d1e8b2666e631a2a597a22613c53215. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/GRE010600517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41252b89f79ba5300588ec095e93f3c7d545e695d2e6efd348bd9e6a8ae75fce. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GRE010600518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a35bb321e192df8734c641a4c9e6311a43d2c1d1f6340d005fbe9186fd0b25. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:13:43Z), 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/GRE010600520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb7288d985badac33732bf653beddbeda83b5db0a5658c5c6d83af703d21efe. 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/GRE010600521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803e783cef5b3ce8739916a525d72ba146ec24057caabdd7e94716eec52f8624. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GRE010600526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbc1e9e6c52a9163142c9320297eaf55665d794ce3711bf3445b7fc5704831a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GRE010600531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168e4cc3a6a54b430981a31b343b415b4e714d4cdd6c5ba243cc7f79b8b1e502. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:48:21Z), 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/GRE010600512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c418ead5e8079a89a81c3fb6e6deed03d936d042fa375b4806c350363e37526. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GRUM71002665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553ca18a746090a299c34c48c4e410ca6cd5a3f91fc7e54987fdd253b9a27deb. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:42:33Z), 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/USCGJ1643396.