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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 0xd3f478db3dd1dff04f3ca3aea7dd9b30983ceb48417a185db8da9f09d7955e5f. 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/b6f808b2-61e7-4b66-9ddc-ba6bed589fca.json and https://artists.proofprofile.net/proofs/artist/b6f808b2-61e7-4b66-9ddc-ba6bed589fca.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 0x7808407f5d7ab5d7cb14710822bd27b8d196b1932f56a43cc3e7739374092fc4. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/KRF252100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af163a41ada8a9f713c2fbdea4f057e9e1420eb2c883a6b645945bcf09707fa. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/KRF252100066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb645cdcb044e5c565c46263f94a2c366e280a3f105c31c53b70d07b49857d4e. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRF252100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fac16e66993147e00de1929bc0764b4880756ff06d4515aa33f94a23d31f85. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:16:59Z), 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/KRA351600200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d595c3caf405690a6de1b14d4eecb00f39b0f719144ac2e26e1619b5d117866. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/KRA351600394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf461326fbc2f0adf3269dbcc1fc0ee2ae48abf53faa7371d5fecf4751b163db9. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/KRA351600396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f17fc8a234a6da774ea62cdc0d93cdb7b4170e7162308eb29fcf25d494a79ed. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/KRA351600398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190f104d676fcdc3df878e43f4bd4b5a1d85cf3867b823269e3ada848b5c569f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/KRA351600361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a32732ee4eba52e3e91c2f9360eda6f74fd31fb917250baa4d58e757416e535. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/KRA351600399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc16abd3fee5e76f03c6d539a6318edd50a91b8e693d8558a38cd18f6acf10c4. 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/KRA351600400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffef9643f81cfcd74fcb23a07e3296c4f648dae8c22f39cbde87a562fbb5d1a7. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/KRA351600401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf461326fbc2f0adf3269dbcc1fc0ee2ae48abf53faa7371d5fecf4751b163db9. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:57:35Z), 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/KRA351600396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f17fc8a234a6da774ea62cdc0d93cdb7b4170e7162308eb29fcf25d494a79ed. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/KRA351600398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a32732ee4eba52e3e91c2f9360eda6f74fd31fb917250baa4d58e757416e535. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/KRA351600399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc16abd3fee5e76f03c6d539a6318edd50a91b8e693d8558a38cd18f6acf10c4. 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/KRA351600400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffef9643f81cfcd74fcb23a07e3296c4f648dae8c22f39cbde87a562fbb5d1a7. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:34:13Z), 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/KRA351600401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c5657a5d79e0bcd8d0b2061d52f7a0b999d80b18f11065f7ccda8edd43244b. 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/KRA351700498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518138ad19572bf64f5b1a1e67d6b718e513308a5b2606f3ce082ef4ae358f6e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:41:41Z), 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/KRA351700496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f744bdb1ddf7c411959685fa013f22e4f98409fc374b6ab657bb042bdaabae. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:34:04Z), 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/KRA351700497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905db473cc2b4f6f083873af0a9655bf863e7921fe5931e6c5df3e281dc4ac69. 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/KRF272000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905db473cc2b4f6f083873af0a9655bf863e7921fe5931e6c5df3e281dc4ac69. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:57:32Z), 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/KRF272000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed494ed5e4686453cd52acbba12388bc814b386ab96e6db643c53bb8e031d3f1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRF252200119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5088aa192c074f77cb9e78190b442f8ab41d0aa17219f0233103b7d7f4165019. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/KRF252200273.
Watcha Original <Inside Lyrics> `It rains`
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0611a58b0b074c430e89492277ee76d15527b519d60fc59028ef181a207afe08. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/KSA012199558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e6a52671010997bb62cb0b99ea7427d83acba402ad135f9b4ed49dea4bf011. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRF252300893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599d1b307ecdf922cc3e4802f023567e7ab03fdda484d5d361a78a98ee34af5f. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/KRF252300456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacf0af2ce2add1758d1b461f6600637d3c17e286bdbc6262a6150b9546101f7. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:36:21Z), 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/KRF252300895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309aefa82a87fc8775be68a03e46bd4eef478626cdc076dd64de6386a862e638. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/KRF252300896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde45fffdf8ec2ab6ddeed0b54d2b2d5f5d52c76fb84fb086e50a97f197fb9a6. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/KRF252301761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde45fffdf8ec2ab6ddeed0b54d2b2d5f5d52c76fb84fb086e50a97f197fb9a6. 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/KRF252301761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e16979e709b2360f299c0b409d6276e24bc358013a88f17623d1e177f28863. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRC712300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc894a16ad38a398d2613621ac5de47d260c00893626a052c370f2947340031a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/KRA351700072.