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 0x4a26ae05a7cd06c9303bb91ac361c88935edfc003d520981ec76f8c45947924f. 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/6668f600-1874-4cb5-ae0a-a0ed858e3822.json and https://artists.proofprofile.net/proofs/artist/6668f600-1874-4cb5-ae0a-a0ed858e3822.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 0xa88b3a0cf566d936e7b1639492fa801f03409693e3c4eb5a2dcf881dcaa395e6. 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/QZWFV2400590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc774600d9f1243678b5ed6059db15ac861ebde0cb54e3edc124310c6f8eb94b9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZWFV2400593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b1fc52330d0ab33c291c3d070117627f6329a65ace7b33cf3e6af8cf91cd78. 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/QZWFV2400594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ef7fbb1386789d3ae775dfd967ebd91dc8a49d24d9802999f0648c8a48bddd. 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/QZWFV2400597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce42ccecd69aa80c503e2c94f9c8b5246e6ba174f05ce94051ebd51b96d62d19. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZWFV2400598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75535f145889669485c76a2fcb8ff28a06cc244437c0741c3c03565eefea65f8. 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/TCAEG1977003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f7c98024ee3365d2502faf84512c809f9cc61f80d16f531f313eebf8cddf47. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAEG1977032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2518d79bd8de5b248a40985ce1432645869c52fa81b0d4b7389b698d84213c89. 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/TCAEG1977035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642b49e0884996db2abfca4c912cb8ee5e8c0f8fd14213d899561926faeed52a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:47:36Z), 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/TCAEG1977040.
Hechizo De Amor (By Grachi Series) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4de0152a58eba7983bc19d07570de48a8f2854a2fc6c3ac9993b81b8c25f655. 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/TCAEG1977055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e090f18807d9a08fbe613841e3f1528ea1775b465217b4b97f0cc50058254f. 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/TCAEG1977060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ded9b7d27a1830202a5cfa29742442f0b1c6421c18d2dde5420b64d649988ac. 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/TCAEG1977378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e83f9b8265078427facfbdbde26ef189be389b02dbfc5082b181a965b8f9a5f. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:05:05Z), 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/TCAEG1977382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86466eaf9ce8cb99049a566ec7a356ed4f1bfaef127f88dfcf6fd2d9197ee3f3. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:57:50Z), 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/TCAEG1977396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09c77fad456476fd6003c91a633f2a6f64cd60065cd3f15183fd3e6b7f35ed9. 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/TCAEG1977397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bec77520e8843d3c68de50eb81c16a540bf6b2255af40c8cae1d1858a96e564. 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/TCAEG1977422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f962cd3b932760d358910fd4992acb88200cbb27e9dfbccd4f1227bd72d6ff. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCAEG1977425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5faa6c0cb1fba5f5e673f6510349eb4be2c3a5d7e7e4d44dbdc80c0bacc6fbc4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCAEG1977436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2114dffe69cda624ed5233697ef02d548b1f716f613588288bafe3e6aef410. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:02:00Z), 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/QZNWT2501374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e901a681aff0fcede3788d2bcd29f1151401a37e26c306fd9b9cd97dade108. 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/QZRP42531574.