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 0x3b2718426e9291904cc8566675e7844ba79fdef8ab60cf515f040d628b3c4cf2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e50ed2a9-5c4b-4831-b29b-9e05b764fba4.json and https://artists.proofprofile.net/proofs/artist/e50ed2a9-5c4b-4831-b29b-9e05b764fba4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Eu Desta Vez Vou Te Esquecer (Lucky People)
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 0x6315e7eeb31f12051a4957981ad4c544dfe683efce473774e7407dfa1d3b0fc2. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/BRUM71200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecbdc6fc17088c109db050ae6e7c7c1bb230c1958eeb1387e0f95fb62f36885. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:58:49Z), 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/BRMCA7100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3dba38e03028efd007bf9771b955dd23517cc2e6cec9bb8f55c82252ffc0a7e. 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/BRUM71200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3396d66774ace87c42678e08bcb3c1d07f2c1fa274b4a4af0fc056a2516ba9. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/BRUM71200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b65e197d8025d10ae70c86d66791b9c54c077ae884b40819e73982714fb815. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/BRMCA7100066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76f4e83896af1509d9d20437e4538e015d9c1fc70f4e987f246286c9b809568. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/BRMCA7200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeca4b96f75a6b460b93fbc8499a96c6b609a792cc9075acc64cc71b16362a1a. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:02:15Z), 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/BRUM71200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e282b7340c256517a8502cadbcd28c0852970609b6906d3f5f7a0d1fe82e64c. 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/BRMCA7200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135fb08df94c0bd94a86caf9908e1cee0c1b55776392b95be8d66e408c6a173f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BRMCA7300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd06bfa9f19677a24e21fcd02f60fa1c0ddb1835c8974187f574ef4201909ea8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BRMCA7300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd71abd7be02aefc07dbaa04a3d0892085b4323c65708597a9e40cc3ef62d71. 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/BRUM71200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384236eca823d6c2926aff923c7c4fc52c4fd92bca6ed879ca6f612c24784937. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:54:28Z), 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/BRUM71200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc823877fc015cc575a2684cf37d1aae84a13bee59d4b4e95192000084a19f815. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BRMCA7300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4de92e72f6820cde6432de823c5e96c7b4542e81718c25cf050d4baca065332. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:27:34Z), 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/BRUM70500642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b23039a24dc2188f8f4a1eda13205ef36f3d522d435e654d91ebfe9160d2a1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRMCA7300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b981c4aac9ed335de65ba2f5317dc6e17d245ccd23bb5d56e36b662c9f7d339. 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/BRMCA7100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677115a611e36897cf6bb6d307b8b9d2ccf1eb5ec329d26141731158f4b5c08f. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:08:07Z), 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/BRMCA7300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6980f6968fc64c01ab7f742b117c091f5e4fb70f92280e470f6170eca7a0fdd8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BRMCA7300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56941b3adae000f99da30a4089c50e18f609286e33c579622ef8a1934a3bc0fa. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:06:12Z), 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/BRMCA7200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06328452cbd35f02f3459f2644a51234dce47971b9d029c5e0305ded776ce3d. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/BRMCA7100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb61e8ad1a5e481f8f10da060713465a59d054cea3616a8a0f40fc324474210e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BRMCA7200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb833e995d29fa73f7158784e55eb5177eec04b62c9ee23f5577dd3db2c019d. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/BRMCA7200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06328452cbd35f02f3459f2644a51234dce47971b9d029c5e0305ded776ce3d. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/BRMCA7100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544500a2e7a2ecdeca94edb95b50d090cec632f21c66f5c9b40817af81ca8c1c. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:23:45Z), 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/BRMCA7200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e426e391bafe2de924b14b45d484849998270ae2dedced2530363def7b125ca. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRMCA7300069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fafca96b0e456d5cdce397493d37434cda6872c32981ed99ce679c754d00bf. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T15:58:58Z), 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/QZWDW2577014.