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 0xe76991caf379bb09c3243ecc6c49c7cc7e5824a5052096f5dc8a8b55deecc952. 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/a2868ebf-9aad-44b2-8e8c-5c04a8ce292e.json and https://artists.proofprofile.net/proofs/artist/a2868ebf-9aad-44b2-8e8c-5c04a8ce292e.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 0x9f29d68aa20682f13e672c4c4b58c0cf99544e5d8a7d34c21565b7b2b15d1eb2. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/ATV111137010.
Ein Stern, der für uns zwei am Himmel steht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b8027b47b58985be7a4702d36ecb024fe46708958ddb1bfd3a277eb56f5ce9. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:22:29Z), 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/ATV111241001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df0f1628f791fa8daddc345011d2ce672f8bd18ab7229245668856237f978d3. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/ATV111426004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414a9348d28446eda4c9a294e3706f71bac6cbc404d71eab6b3c36502ee53afa. 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/ATV111515001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff56b403bc3698a5334a29b3b81a4ffc2f5f242cce24b2323dd1db0fc0e2d9f. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/ATV111515002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc4380a4e12f38cca7adc680fad7b5368637b213c64af7a0cb8067c9ca86c9a. 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/ATV111600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedaf534061305dce43f53892fe9863d7496e09aaa33c2ce09758f66c2c1e8044. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ATV111702001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8738332c8bcad2883d2958fd2550c054f35fde9eada3754ef6fd1b27e00953. 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/ATV111809001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c2bfce2397676d370b384bd4041eecdaabf27c7604b4000ba7c923df6577da. 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/ATV111809005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02f57c30ef718e3ce02f03aaf40fc3cf29e88fcfcda2b317ff6d7dea22d80cb. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/ATV111809012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4a833e13917e202742b0406afe58af60bf1f17f8e310c692710dfcd05fbba2. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/ATV111910014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272b830eebe75550ee42a3a720caa840d38ed78c287526f057187c31850d4aaa. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:52:36Z), 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/ATV111910016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c68cf206be7ca1eb299fc4e8908c0919adbd1d8cb4da002403d7ebd19526ffb. 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/ATV111910017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30349ffb346a145942c18a6d3fb722cb6d1ef2d4964e0d688f0f7690cb3ce3b. 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/ATV111910021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a39f6f20d936f3ba727740bc0655dba79e5f19ed3af8760e230217a85ab17c4. 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/ATV111910023.
50 Jahre - Das Beste zum großen Jubiläum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe739872e4e20e7f36a1646e3ecfdbc570b62a8e971bac6c657b649f49b76fbe8. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/ATV112201121.
Der Glaube ist das Licht in der Dunkelheit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b103531acb2e85b6c0a8f10992c17ceb46b66c5738e7aa4f042bc5c5495941c. 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/ATV112201122.
Ich bete heute für einen Menschen, der niemals geht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc6530c6ddcf4d8deeee2762fa3916df279e6be36649c1a36e83f252419c354. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:21:32Z), 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/ATV112201126.
Wenn einer geht, den man im Herzen trägt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0393bc1907e94654cf03370e75b2ddc3d85bfce482d55f2d50cbb525c8276609. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/ATV112400231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2fcb35ead8b94fc7ffbb1446fc94be293262dbb7bff8097b23c4d555a0c2de. 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/ATV112400240.